View Filing Data

Acquisition-related intangibles

3,183

2,664

Long-term investments

251

268

Goodwill

4,362

628

946

Deferred tax assets

295

264

Capitalized software licenses

110

Overfunded retirement plans

208

Other long-term assets

140

Total assets

17,137

17,642

Current liabilities:

Current portion of long-term debt

749

500

Accounts payable

478

466

Accrued compensation

724

722

Income taxes payable

103

128

Accrued expenses and other liabilities

420

442

Total current liabilities

2,474

2,258

Long-term debt

4,319

3,577

Underfunded retirement plans

118

Deferred tax liabilities

Other long-term liabilities

1,190

1,303

Total liabilities

8,143

7,305

Stockholders’ equity:

Preferred stock, $25 par value. Authorized - 10,000,000 shares Participating cumulative preferred - None issued.

Common stock, $1 par value. Authorized - 2,400,000,000 shares Shares issued - 1,740,815,939

1,741

Paid-in capital

1,950

1,776

Retained earnings

37,906

34,662

Treasury common stock at cost Shares: 2018 – 795,665,646; 2017 – 757,657,217

(32,130)

(27,458)

Accumulated other comprehensive income (loss), net of taxes (AOCI)

(473)

^[1]

(384)

Total stockholders’ equity

8,994

10,337

Total liabilities and stockholders’ equity

$ 17,137

$ 17,642

[1]	Includes $30 million for the adoption of ASU 2018-02. See Note 2 for additional information.

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Allowance for doubtful accounts receivable, current	$ 19	$ 8
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	2,400,000,000	2,400,000,000
Common stock, shares issued (in shares)	1,740,815,939	1,740,815,939
Treasury stock (in shares)	795,665,646	757,657,217

Consolidated Statements of Cash Flows - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Cash flows from operating activities

Net income

$ 5,580

$ 3,682

$ 3,595

Adjustments to net income:

Depreciation

590

539

605

Amortization of acquisition-related intangibles

318

319

Amortization of capitalized software

Stock compensation

232

242

252

Gains on sales of assets

(3)

(40)

Deferred taxes

(105)

112

(202)

Increase (decrease) from changes in:

Accounts receivable

(7)

(108)

Inventories

(282)

(167)

(99)

Prepaid expenses and other current assets

669

(81)

Accounts payable and accrued expenses

(7)

Accrued compensation

(7)

(3)

Income taxes payable

158

468

333

Changes in funded status of retirement plans

(73)

Other

(107)

(16)

(26)

Cash flows from operating activities

7,189

5,363

4,614

Cash flows from investing activities

Capital expenditures

(1,131)

(695)

(531)

Proceeds from asset sales

Purchases of short-term investments

(5,641)

(4,555)

(3,503)

Proceeds from short-term investments

6,708

4,095

3,390

Other

(23)

(12)

(6)

Cash flows from investing activities

(78)

(1,127)

(650)

Cash flows from financing activities

Proceeds from issuance of long-term debt

1,500

1,099

499

Repayment of debt

(500)

(625)

(1,000)

Dividends paid

(2,555)

(2,104)

(1,646)

Stock repurchases

(5,100)

(2,556)

(2,132)

Proceeds from common stock transactions

^[1]

373

483

472

Other

(47)

(31)

(3)

Cash flows from financing activities

(6,329)

(3,734)

(3,810)

Net change in cash and cash equivalents

782

502

154

Cash and cash equivalents at beginning of period

1,656

1,154

1,000

Cash and cash equivalents at end of period

$ 2,438

$ 1,656

$ 1,154

[1]	Net of taxes paid for employee shares withheld of $60 million, $83 million and $70 million in 2018, 2017 and 2016, respectively.

Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Retained Earnings	Treasury Common Stock	AOCI
Balance at Dec. 31, 2015		$ 1,741	$ 1,629	$ 31,176	$ (24,068)	$ (532)
Net income	$ 3,595	0	0	3,595	0	0
Dividends declared and paid ($1.64, $2.12 and $2.63 per share in 2016, 2017, and 2018)		0	0	(1,646)	0	0
Common stock issued for stock-based awards		0	(204)	0	677	0
Stock repurchases		0	0	0	(2,132)	0
Stock compensation		0	252	0	0	0
Other comprehensive income (loss), net of taxes	6	0	0	0	0	6
Dividend equivalents paid on restricted stock units		0	0	(18)	0	0
Other		0	(3)	0	0	0
Balance at Dec. 31, 2016		1,741	1,674	33,107	(25,523)	(526)
Net income	3,682	0	0	3,682	0	0
Dividends declared and paid ($1.64, $2.12 and $2.63 per share in 2016, 2017, and 2018)		0	0	(2,104)	0	0
Common stock issued for stock-based awards		0	(138)	0	621	0
Stock repurchases		0	0	0	(2,556)	0
Stock compensation		0	242	0	0	0
Other comprehensive income (loss), net of taxes	142	0	0	0	0	142
Dividend equivalents paid on restricted stock units		0	0	(17)	0	0
Other		0	(2)	(6)	0	0
Balance at Dec. 31, 2017	10,337	1,741	1,776	34,662	(27,458)	(384)
Net income	5,580	0	0	5,580	0	0
Dividends declared and paid ($1.64, $2.12 and $2.63 per share in 2016, 2017, and 2018)		0	0	(2,555)	0	0
Common stock issued for stock-based awards		0	(55)	0	428	0
Stock repurchases		0	0	0	(5,100)	0
Stock compensation		0	232	0	0	0
Other comprehensive income (loss), net of taxes	(59)	0	0	0	0	(59)
Dividend equivalents paid on restricted stock units		0	0	(17)	0	0
Cumulative effect of accounting changes at Dec. 31, 2018		0	0	236	0	(30)
Other		0	(3)	0	0	0
Balance at Dec. 31, 2018	$ 8,994	$ 1,741	$ 1,950	$ 37,906	$ (32,130)	$ (473)

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement Of Stockholders Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 2.63	$ 2.12	$ 1.64

Description of Business, Including Segment and Geographic Area Information

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Description of business, including segment and geographic area information

1. Description of business, including segment and geographic area information

We design, make and sell semiconductors to electronics designers and manufacturers all over the world. We have two reportable segments, which are established along major categories of products as follows:

•

Analog – consisting of the following product lines: Power, Signal Chain and High Volume.

•

Embedded Processing – consisting of the following product lines: Connected Microcontrollers and Processors.

We report the results of our remaining business activities in Other. Other includes operating segments that do not meet the quantitative thresholds for individually reportable segments and cannot be aggregated with other operating segments. Other includes DLP^® products, calculators and custom ASIC products.

In Other, we also include items that are not used in evaluating the results of or in allocating resources to our segments. Examples of these items include acquisition charges (see Note 8); restructuring charges (see Note 12); and certain corporate-level items, such as litigation expenses, environmental costs, insurance settlements, and gains and losses from other activities, including asset dispositions. We allocate the remainder of our expenses associated with corporate activities to our operating segments based on specific methodologies, such as percentage of operating expenses or headcount.

Our centralized manufacturing and support organizations, such as facilities, procurement and logistics, provide support to our operating segments, including those in Other. Costs incurred by these organizations, including depreciation, are charged to the segments on a per-unit basis. Consequently, depreciation expense is not an independently identifiable component within the segments’ results and, therefore, is not provided.

With the exception of goodwill, we do not identify or allocate assets by operating segment, nor does the chief operating decision maker evaluate operating segments using discrete asset information. We have no material intersegment revenue. The accounting policies of the segments are consistent with those described below in the summary of significant accounting policies and practices.

Segment information

	For Years Ended December 31,
	2018		2017		2016
Revenue:
Analog	$	10,801	$	9,900	$	8,536
Embedded Processing		3,554		3,498		3,023
Other		1,429		1,563		1,811
Total revenue	$	15,784	$	14,961	$	13,370

Operating profit:
Analog	$	5,109	$	4,468	$	3,416
Embedded Processing		1,205		1,143		817
Other		399		472		622
Total operating profit	$	6,713	$	6,083	$	4,855

Geographic area information

The following geographic area information includes revenue, based on product shipment destination, and property, plant and equipment, based on physical location. The revenue information is not necessarily indicative of the geographic area in which the end applications containing our products are ultimately consumed because our products tend to be shipped to the locations where our customers manufacture their products. Specifically, many of our products are shipped to our customers in China who may include these parts in the manufacture of their own end products, which they may in turn export to their customers around the world.

	For Years Ended December 31,
	2018		2017		2016
Revenue:
United States	$	2,288	$	1,901	$	1,682
Asia (a)		9,240		8,824		8,024
Europe, Middle East and Africa		3,047		2,907		2,393
Japan		869		1,049		1,040
Rest of world		340		280		231
Total revenue	$	15,784	$	14,961	$	13,370

(a)	Revenue from products shipped into China was $7.0 billion, $6.6 billion and $6.0 billion in 2018, 2017 and 2016, respectively.

		December 31,
	2018			2017
Property, plant and equipment:
United States	$		1,812	$	1,469
Asia (a)			1,116		964
Europe, Middle East and Africa			84		97
Japan			157		118
Rest of world			14		16
Total property, plant and equipment	$		3,183	$	2,664

(a)	Property, plant and equipment at our two sites in the Philippines was $437 million as of December 31, 2018 and 2017. Property, plant and equipment at our sites in China was $313 million and $236 million as of December 31, 2018 and 2017, respectively.

Basis of Presentation and Significant Accounting Policies and Practices

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Basis of presentation and significant accounting policies and practices

2. Basis of presentation and significant accounting policies and practices

Basis of presentation

The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP). The basis of these financial statements is comparable for all periods presented herein, except for the effects of adopting a new accounting standard in 2018 related to revenue recognition.

The consolidated financial statements include the accounts of all subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. All dollar amounts in the financial statements and tables in these notes, except per-share amounts, are stated in millions of U.S. dollars unless otherwise indicated. We have reclassified certain amounts in the prior periods’ financial statements to conform to the 2018 presentation.

The preparation of financial statements requires the use of estimates from which final results may vary.

Significant accounting policies and practices

Revenue recognition

We generate revenue primarily from the sale of semiconductor products, either directly to a customer or to a distributor, or at the conclusion of a consignment process. We have a variety of types of contracts with our customers and distributors. In determining whether a contract exists, we evaluate the terms of the arrangement, the relationship with the customer or distributor and their ability to pay.

We recognize revenue from sales of our products, including sales to our distributors, when control is transferred. Control is considered transferred when title and risk of loss pass, when the customer becomes obligated to pay and, where required, when the customer has accepted the products. This transfer generally occurs at a point in time upon shipment or delivery to the customer or distributor, depending upon the terms of the sales order. Payment for sales to customers and distributors is generally due on our standard commercial terms. For sales to distributors, payment is not contingent upon resale of the products.

Revenue from sales of our products that are subject to inventory consignment agreements is recognized at a point in time, when the customer or distributor pulls product from consignment inventory that we store at designated locations. Transfer of control occurs at that point, when title and risk of loss transfers and the customer or distributor becomes obligated to pay for the products pulled from inventory. Until the products are pulled for use or sale by the customer or distributor, we retain control over the products’ disposition, including the right to pull back or relocate the products.

The revenue recognized is adjusted based on allowances, which are prepared on a portfolio basis using a most likely amount methodology based on analysis of historical data and contractual terms. These allowances, which are not material, generally include adjustments for pricing arrangements, product returns and incentives. The length of time between invoicing and payment is not significant under any of our payment terms. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component.

In addition, we record allowances for accounts receivable that we estimate may not be collected. We monitor collectability of accounts receivable primarily through review of accounts receivable aging. When collection is at risk, we assess the impact on amounts recorded for bad debts and, if necessary, record a charge in the period such determination is made.

We recognize shipping fees, if any, received from customers in revenue. We include the related shipping and handling costs in cost of revenue. The majority of our customers pay these fees directly to third parties.

Advertising costs

We expense advertising and other promotional costs as incurred. This expense was $34 million, $39 million and $44 million in 2018, 2017 and 2016, respectively.

Income taxes

We account for income taxes using an asset and liability approach. We record the amount of taxes payable or refundable for the current year and the deferred tax assets and liabilities for future tax consequences of events that have been recognized in the financial statements or tax returns. We record a valuation allowance when it is more likely than not that some or all of the deferred tax assets will not be realized.

Other assessed taxes

Some transactions require us to collect taxes such as sales, value-added and excise taxes from our customers. These transactions are presented in our Consolidated Statements of Income on a net (excluded from revenue) basis.

Earnings per share (EPS)

We use the two-class method for calculating EPS because the restricted stock units (RSUs) we grant are participating securities containing non-forfeitable rights to receive dividend equivalents. Under the two-class method, a portion of net income is allocated to RSUs and excluded from the calculation of income allocated to common stock, as shown in the table below.

Computation and reconciliation of earnings per common share are as follows (shares in millions):

	For Years Ended December 31,
	2018							2017							2016
	Net							Net							Net
	Income			Shares		EPS		Income			Shares		EPS		Income			Shares		EPS
Basic EPS:
Net income	$	5,580						$	3,682						$	3,595
Income allocated to RSUs		(43	)						(34	)						(45	)
Income allocated to common stock	$	5,537			970	$	5.71	$	3,648			991	$	3.68	$	3,550			1,003	$	3.54
Dilutive effect of stock compensation plans					20							21							18

Diluted EPS:
Net income	$	5,580						$	3,682						$	3,595
Income allocated to RSUs		(42	)						(33	)						(44	)
Income allocated to common stock	$	5,538			990	$	5.59	$	3,649			1,012	$	3.61	$	3,551			1,021	$	3.48

Potentially dilutive securities representing 4 million and 6 million shares of common stock that were outstanding in 2018 and 2017, respectively, were excluded from the computation of diluted earnings per common share during these periods because their effect would have been anti-dilutive. No potentially dilutive securities were excluded from the computation of diluted earnings per common share during 2016.

Investments

We present investments on our Consolidated Balance Sheets as cash equivalents, short-term investments or long-term investments, which are detailed below. See Note 7 for additional information.

•

Cash equivalents and short-term investments – We consider investments in available-for-sale debt securities with maturities of 90 days or less from the date of our investment to be cash equivalents. We consider investments in available-for-sale debt securities with maturities beyond 90 days from the date of our investment as being available for use in current operations and include them in short-term investments. The primary objectives of our cash equivalent and short-term investment activities are to preserve capital and maintain liquidity while generating appropriate returns.

•

Long-term investments – Long-term investments consist of mutual funds, venture capital funds and non-marketable equity securities.

Inventories

Inventories are stated at the lower of cost or estimated net realizable value. Cost is generally computed on a currently adjusted standard cost basis, which approximates cost on a first-in first-out basis. Standard cost is based on the normal utilization of installed factory capacity. Cost associated with underutilization of capacity is expensed as incurred. Inventory held at consignment locations is included in our finished goods inventory. Consigned inventory was $314 million and $303 million as of December 31, 2018 and 2017, respectively.

We review inventory quarterly for salability and obsolescence. A statistical allowance is provided for inventory considered unlikely to be sold. The statistical allowance is based on an analysis of historical disposal activity, historical customer shipments, as well as estimated future sales. A specific allowance for each material type will be carried if there is a significant event not captured by the statistical allowance. We write off inventory in the period in which disposal occurs.

Property, plant and equipment; acquisition-related intangibles; and other capitalized costs

Property, plant and equipment are stated at cost and depreciated over their estimated useful lives using the straight-line method. Our cost basis includes certain assets acquired in business combinations that were initially recorded at fair value as of the date of acquisition. Leasehold improvements are amortized using the straight-line method over the shorter of the remaining lease term or the estimated useful lives of the improvements. We amortize acquisition-related intangibles on a straight-line basis over the estimated economic life of the assets. Capitalized software licenses generally are amortized on a straight-line basis over the term of the license. Fully depreciated or amortized assets are written off against accumulated depreciation or amortization.

Impairments of long-lived assets

We regularly review whether facts or circumstances exist that indicate the carrying values of property, plant and equipment or other long-lived assets, including intangible assets, are impaired. We assess the recoverability of assets by comparing the projected undiscounted net cash flows associated with those assets to their respective carrying amounts. Any impairment charge is based on the excess of the carrying amount over the fair value of those assets. Fair value is determined by available market valuations, if applicable, or by discounted cash flows.

Goodwill

Goodwill is reviewed for impairment annually or more frequently if certain impairment indicators arise. We perform our annual goodwill impairment test as of October 1 for our reporting units, which compares the fair value for each reporting unit to its associated carrying value, including goodwill. See Note 8 for additional information.

Foreign currency

The functional currency for our non-U.S. subsidiaries is the U.S. dollar. Accounts recorded in currencies other than the U.S. dollar are remeasured into the functional currency. Current assets (except inventories), deferred taxes, other assets, current liabilities and long-term liabilities are remeasured at exchange rates in effect at the end of each reporting period. Property, plant and equipment with associated depreciation and inventories are valued at historical exchange rates. Revenue and expense accounts other than depreciation for each month are remeasured at the appropriate daily rate of exchange. Currency exchange gains and losses from remeasurement are credited or charged to OI&E.

Derivatives and hedging

We use derivative financial instruments to manage exposure to foreign exchange risk. These instruments are primarily forward foreign currency exchange contracts, which are used as economic hedges to reduce the earnings impact that exchange rate fluctuations may have on our non-U.S. dollar net balance sheet exposures. Gains and losses from changes in the fair value of these forward foreign currency exchange contracts are credited or charged to OI&E. We do not apply hedge accounting to our foreign currency derivative instruments.

In connection with the issuance of long-term debt, we may use financial derivatives such as treasury-rate lock agreements that are recognized in AOCI and amortized over the life of the related debt. The results of these derivative transactions have not been material.

We do not use derivatives for speculative or trading purposes.

Changes in accounting standards – adopted standards for current period

Accounting Standard Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606)

This standard provides a single set of guidelines for revenue recognition to be used across all industries and requires additional disclosures. We adopted Accounting Standards Codification Topic 606 (ASC 606) as of January 1, 2018, using the modified retrospective transition method applied only to contracts that were not completed as of the adoption date. The reported results for 2018 reflect the application of the new accounting guidance, while the reported results for prior period amounts are not adjusted and continue to be reported in accordance with our historical accounting under ASC 605, Revenue Recognition.

The most significant impact from adopting the standard relates to our accounting for royalty income on licenses of intellectual property; however, the effect of such change during any individual reporting period will not materially impact our results of operations and financial position. Although royalty income is recorded within OI&E, the new revenue guidance applies to these agreements by analogy, and therefore, such agreements have been evaluated for ASC 606 transition considerations. Under ASC 606, royalty income for our fixed-rate royalty agreements is bifurcated between two performance obligations: providing a right to use our initial patent portfolio and the right to access our future patents when those patents are developed. We have determined that the value of these agreements is allocated more heavily to the initial performance obligation. As a result, income from these agreements is recognized predominately at the time of contract execution rather than ratably over the life of the agreements, accelerating the timing of when we recognize royalty income in OI&E.

The timing of revenue recognition, billings and cash collections may result in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities). These items are included in other current and non-current assets and liabilities on the Consolidated Balance Sheets. Generally, we invoice customers for payment upon shipment or when goods are pulled from consignment inventory, which results in an unconditional right to consideration. The time frame between when the customer places an order for products and when it is shipped is less than 12 months.

Occasionally, as of the end of a reporting period, some performance obligations associated with contracts are unsatisfied or only partially satisfied. In accordance with the practical expedients available in the guidance, we do not disclose the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less. Additionally, sales commissions are expensed when incurred because the amortization period would have been one year or less.

We recognized an increase to opening retained earnings of $206 million, net of taxes, as of January 1, 2018, due to the cumulative impact of adopting ASC 606. A contract asset of $283 million and deferred tax liabilities of $55 million were recorded as of January 1, 2018, related to the transition period adjustments.

ASU No. 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

This standard allows a reclassification of stranded tax effects as a result of the U.S. Tax Cuts and Jobs Act (the Tax Act) from AOCI to retained earnings. The provisions from this guidance are effective for interim and annual periods beginning after January 1, 2019. This standard should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effects of the Tax Act are recognized.

We elected to early adopt this standard during the fourth quarter of 2018 concurrent with the completion of our accounting for the tax effects of the enactment of the Tax Act, applying the guidance to the period of adoption. As a result, we reclassified stranded tax effects of $30 million from the 2018 opening balance of AOCI into retained earnings. See Note 5 for additional information related to our accounting for the effects of the Tax Act.

Other standards

The following standards were also adopted:

ASU	Description	Adopted Date
ASU No. 2016-01	Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	January 1, 2018
ASU No. 2017-01	Business Combinations (Topic 805): Clarifying the Definition of a Business	January 1, 2018
ASU No. 2017-04	Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	October 1, 2018
ASU No. 2017-05	Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets	January 1, 2018

Changes in accounting standards – standards not yet adopted

ASU No. 2016-02, Leases (Topic 842)

This standard requires all leases that have a term of over 12 months to be recognized on the balance sheet with the liability for lease payments and the corresponding right-of-use asset initially measured at the present value of amounts expected to be paid over the term. Recognition of the costs of these leases on the income statement will be dependent upon their classification as either an operating or a finance lease. This standard is effective for interim and annual periods beginning January 1, 2019.

We are adopting this standard effective January 1, 2019, using the optional transition method, applying the guidance to leases existing at, or entered into after, the beginning of the period of adoption. We are also electing certain practical expedients permitted under the transition guidance. In preparation for adoption of the standard, we have implemented system functionality to enable the preparation of financial information. The most significant impact from adopting the standard will be the recognition of right-of-use assets and lease liabilities for operating leases on our Consolidated Balance Sheets, which will increase total assets by about 2 percent.

ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

This standard requires entities to use a current lifetime expected credit loss methodology to measure impairments of certain financial assets. Using this methodology will result in earlier recognition of losses than under the current incurred loss approach, which requires waiting to recognize a loss until it is probable of having been incurred. There are other provisions within the standard that affect how impairments of other financial assets may be recorded and presented, and that expand disclosures. This standard will be effective for our interim and annual periods beginning January 1, 2020, with early adoption permitted beginning January 1, 2019, and must be applied on a modified retrospective basis. We are evaluating the potential impact of this standard, but we do not expect it to have a material impact on our financial position and results of operations.

Other standards

We are evaluating the impact of the following standards, but we do not expect them to have a material impact on our financial position and results of operations. We plan to adopt these standards as of their effective dates.

ASU	Description	Effective Date
ASU No. 2017-12	Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities	January 1, 2019
ASU No. 2018-13	Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement	January 1, 2020
ASU No. 2018-14	Compensation – Retirement Benefits – Defined Benefit Plans – General (Subtopic 715-20): Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans	January 1, 2020
ASU No. 2018-15	Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	January 1, 2020

Stock Compensation

12 Months Ended

Dec. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock compensation

3. Stock compensation

We have stock options outstanding to participants under long-term incentive plans. The option price per share may not be less than the fair market value of our common stock on the date of the grant. The options have a 10-year term, generally vest ratably over four years, and continue to vest after the option recipient retires.

We also have RSUs outstanding to participants under long-term incentive plans. Each RSU represents the right to receive one share of TI common stock on the vesting date, which is generally four years after the date of grant. Upon vesting, the shares are issued without payment by the grantee. RSUs continue to vest after the recipient retires. Holders of RSUs receive an annual cash payment equivalent to the dividends paid on our common stock.

We have options and RSUs outstanding to non-employee directors under director compensation plans. The plans generally provide for annual grants of stock options and RSUs, a one-time grant of RSUs to each new non-employee director and the issuance of TI common stock upon the distribution of stock units credited to deferred compensation accounts established for such directors.

We also have an employee stock purchase plan (ESPP) under which options are offered to all eligible employees in amounts based on a percentage of the employee’s compensation, subject to a cap. Under the plan, the option price per share is 85 percent of the fair market value on the exercise date.

Total stock compensation expense recognized is as follows:

	For Years Ended December 31,
	2018		2017		2016
COR	$	25	$	36	$	40
R&D		69		59		60
SG&A		138		147		152
Total	$	232	$	242	$	252

These amounts include expenses related to non-qualified stock options, RSUs and stock options offered under our ESPP and are net of estimated forfeitures.

We recognize compensation expense for non-qualified stock options and RSUs on a straight-line basis over the minimum service period required for vesting of the award, adjusting for estimated forfeitures based on historical activity. Awards issued to employees who are retirement eligible or nearing retirement eligibility are expensed on an accelerated basis. Options issued under our ESPP are expensed over a three-month period.

Fair-value methods and assumptions

We account for all awards granted under our various stock compensation plans at fair value. We estimate the fair values for non-qualified stock options using the Black-Scholes-Merton option-pricing model with the following weighted average assumptions:

	For Years Ended December 31,
	2018			2017			2016
Weighted average grant date fair value, per share	$	23.20		$	16.49		$	10.03
Weighted average assumptions used:
Expected volatility		23	%		24	%		25	%
Expected lives (in years)		7.2			7.2			7.3
Risk-free interest rates		2.57	%		2.36	%		1.72	%
Expected dividend yields		2.25	%		2.52	%		2.87	%

We determine expected volatility on all options granted using available implied volatility rates. We believe that market-based measures of implied volatility are currently the best available indicators of the expected volatility used in these estimates.

We determine expected lives of options based on the historical option exercise experience of our optionees using a rolling 10-year average. We believe the historical experience method is the best estimate of future exercise patterns currently available.

Risk-free interest rates are determined using the implied yield currently available for zero-coupon U.S. government issues with a remaining term equal to the expected life of the options.

Expected dividend yields are based on the annualized approved quarterly dividend rate and the current market price of our common stock at the time of grant. No assumption for a future dividend rate change is included unless there is an approved plan to change the dividend in the near term.

The fair value per share of RSUs is determined based on the closing price of our common stock on the date of grant.

Our ESPP is a discount-purchase plan and consequently the Black-Scholes-Merton option-pricing model is not used to determine the fair value per share of these awards. The fair value per share under this plan equals the amount of the discount.

Long-term incentive and director compensation plans

Stock option and RSU transactions under our long-term incentive and director compensation plans are as follows:

	Stock Options					RSUs
				Weighted Average					Weighted Average
				Exercise Price					Grant Date Fair
	Shares			per Share		Shares			Value per Share
Outstanding grants, December 31, 2017		44,754,593		$	48.49		9,225,643		$	55.40
Granted		4,617,486			110.07		1,247,239			110.05
Stock options exercised/RSUs vested		(8,432,458	)		42.63		(2,769,994	)		44.50
Forfeited and expired		(1,034,167	)		77.30		(397,345	)		70.34
Outstanding grants, December 31, 2018		39,905,454			56.10		7,305,543			66.72

The weighted average grant date fair values per share of RSUs granted in 2018, 2017 and 2016 were $110.05, $79.52 and $53.98, respectively. In 2018, 2017 and 2016, the total grant date fair values of shares vested from RSU grants were $123 million, $149 million and $178 million, respectively.

As of December 31, 2018, the number of shares remaining available for future issuance under these plans was 50,167,414.

Summarized information about stock options outstanding as of December 31, 2018, is as follows:

		Stock Options Outstanding						Options Exercisable
		Number		Weighted Average		Weighted Average		Number		Weighted Average
Exercise Price		Outstanding		Remaining Contractual		Exercise Price		Exercisable		Exercise Price
Range		(Shares)		Life (Years)		per Share		(Shares)		per Share
$	14.47 to 20.00		573,629		0.1	$	14.96		573,629	$	14.96
	20.01 to 40.00		9,508,056		2.9		31.21		9,508,056		31.21
	40.01 to 60.00		19,883,804		6.2		50.95		12,397,285		49.53
	60.01 to 80.00		5,612,386		8.1		79.21		1,143,118		79.20
	80.01 to 100.00		37,917		9.3		91.16		3,714		91.54
	100.01 to 113.30		4,289,662		9.1		110.15		—		—
	14.47 to 113.30		39,905,454		5.9		56.10		23,625,802		42.76

In 2018, 2017 and 2016, the aggregate intrinsic values (i.e., the difference in the closing market price on the date of exercise and the exercise price paid by the optionee) of options exercised were $561 million, $632 million and $424 million, respectively.

Summarized information as of December 31, 2018, about outstanding stock options that are vested and expected to vest, as well as stock options that are currently exercisable, is as follows:

	Outstanding Stock Options
	(Fully Vested and		Options
	Expected to Vest) (a)		Exercisable
Number of outstanding (shares)		39,274,492		23,625,802
Weighted average remaining contractual life (in years)		5.9		4.7
Weighted average exercise price per share	$	55.60	$	42.76
Intrinsic value (millions of dollars)	$	1,591	$	1,222

(a)	Includes effects of expected forfeitures of approximately 1 million shares. Excluding the effects of expected forfeitures, the aggregate intrinsic value of stock options outstanding was $1.60 billion.

As of December 31, 2018, total future compensation related to equity awards not yet recognized in our Consolidated Statements of Income was $224 million, consisting of $97 million related to unvested stock options and $127 million related to unvested RSUs. The $224 million is expected to be recognized as follows: $110 million in 2019, $72 million in 2020, $37 million in 2021 and $5 million in 2022.

Employee stock purchase plan

Options outstanding under the ESPP as of December 31, 2018, had an exercise price equal to 85 percent of the fair market value of TI common stock on the date of automatic exercise. The automatic exercise occurred on January 2, 2019, resulting in an exercise price of $80.29 per share. Of the total outstanding options, none were exercisable as of December 31, 2018.

ESPP transactions are as follows:

	ESPP
	(Shares)			Exercise Price
Outstanding grants, December 31, 2017		202,179		$	89.74
Granted		847,535			87.48
Exercised		(819,878	)		90.06
Outstanding grants, December 31, 2018		229,836			80.29

The weighted average grant date fair values per share of options granted under the ESPP in 2018, 2017 and 2016 were $15.43, $12.99 and $9.79, respectively. In 2018, 2017 and 2016, the total intrinsic value of options exercised under these plans was $13 million, $13 million and $12 million, respectively.

As of December 31, 2018, the number of shares remaining available for future issuance under this plan was 34,555,101.

Effect on shares outstanding and treasury shares

Treasury shares were acquired in connection with the board-authorized stock repurchase program. As of December 31, 2018, $16.14 billion of stock repurchase authorizations remain, and no expiration date has been specified.

Our current practice is to issue shares of common stock from treasury shares upon exercise of stock options, distribution of director deferred compensation and vesting of RSUs. The following table reflects the changes in our treasury shares:

	Stock Options			RSUs			Treasury Shares
Balance, December 31, 2015								729,547,527
Repurchases								35,480,036
Shares used for:
Stock options/RSUs		(14,516,606	)		(5,639,666	)
Stock applied to taxes		—			1,336,476
ESPP		(1,362,202	)		—
Director deferred stock units		—			—			(13,587	)
Total issued		(15,878,808	)		(4,303,190	)		(20,181,998	)
Balance, December 31, 2016								744,831,978

Repurchases								30,570,129
Shares used for:
Stock options/RSUs		(13,313,019	)		(4,419,464	)
Stock applied to taxes		—			1,058,100
ESPP		(1,065,757	)		—
Director deferred stock units		—			—			(4,750	)
Total issued		(14,378,776	)		(3,361,364	)		(17,740,140	)
Balance, December 31, 2017								757,657,217

Repurchases								49,482,220
Shares used for:
Stock options/RSUs		(8,432,458	)		(2,769,994	)
Stock applied to taxes		—			553,720
ESPP		(819,878	)		—
Director deferred stock units		—			—			(5,181	)
Total issued		(9,252,336	)		(2,216,274	)		(11,468,610	)
Balance, December 31, 2018								795,665,646

The effects on cash flows are as follows:

	For Years Ended December 31,
	2018			2017			2016
Proceeds from common stock transactions (a)	$	373		$	483		$	472

Tax benefit realized from stock compensation	$	179		$	341		$	255
Reduction to deferred tax asset		(43	)		(91	)		(105	)
Excess tax benefit for stock compensation	$	136		$	250		$	150

(a)	Net of taxes paid for employee shares withheld of $60 million, $83 million and $70 million in 2018, 2017 and 2016, respectively.

Profit Sharing Plans

12 Months Ended

Dec. 31, 2018

Profit Sharing Plans [Abstract]

Profit sharing plans

4. Profit sharing plans

Profit sharing benefits are generally formulaic and determined by one or more subsidiary or company-wide financial metrics. We pay profit sharing benefits primarily under the company-wide TI Employee Profit Sharing Plan. This plan provides for profit sharing to be paid based solely on TI’s operating margin for the full calendar year. Under this plan, TI must achieve a minimum threshold of 10 percent operating margin before any profit sharing is paid. At 10 percent operating margin, profit sharing will be 2 percent of eligible payroll. The maximum amount of profit sharing available under the plan is 20 percent of eligible payroll, which is paid only if TI’s operating margin is at or above 35 percent for a full calendar year.

We recognized $354 million, $355 million and $346 million of profit sharing expense under the TI Employee Profit Sharing Plan in 2018, 2017 and 2016, respectively.

Income Taxes

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income taxes

5. Income taxes

Income before income taxes is comprised of the following components:

	For Years Ended December 31,
	2018		2017		2016
U.S.	$	5,672	$	5,130	$	3,953
Non-U.S.		1,014		950		977
Total	$	6,686	$	6,080	$	4,930

Provision for income taxes is comprised of the following components:

	For Years Ended December 31,
	2018							2017						2016
	Current		Deferred			Total		Current		Deferred		Total		Current		Deferred			Total
U.S. federal	$	979	$	(98	)	$	881	$	2,101	$	51	$	2,152	$	1,289	$	(122	)	$	1,167
Non-U.S.		225		(8	)		217		173		61		234		238		(80	)		158
U.S. state		7		1			8		12		—		12		10		—			10
Total	$	1,211	$	(105	)	$	1,106	$	2,286	$	112	$	2,398	$	1,537	$	(202	)	$	1,335

Principal reconciling items from the U.S. statutory income tax rate to the effective tax rate (provision for income taxes as a percentage of income before income taxes) are as follows:

	For Years Ended December 31,
	2018			2017			2016
U.S. statutory income tax rate		21.0	%		35.0	%		35.0	%
U.S. tax benefit for foreign derived intangible income		(5.3	)		—			—
U.S. Tax Act transitional non-cash expense		4.2			—			—
U.S. Tax Act enactment-date effects and measurement period adjustments		(0.7	)		12.7			—
U.S. tax on global intangible low-taxed income		0.4			—			—
U.S. tax benefit for manufacturing		—			(1.6	)		(1.5	)
U.S. excess tax benefit for stock compensation		(2.0	)		(4.1	)		(3.0	)
U.S. R&D tax credit		(1.3	)		(1.1	)		(1.2	)
U.S. non-deductible expenses		0.2			0.2			0.3
Non-U.S. effective tax rates		0.1			(2.5	)		(3.7	)
Impact of changes to uncertain tax positions		—			0.7			0.6
Other		(0.1	)		0.1			0.6
Effective tax rate		16.5	%		39.4	%		27.1	%

The Tax Act was enacted on December 22, 2017. The Tax Act reduces the U.S. statutory income tax rate from 35 percent to 21 percent and requires companies to pay a one-time tax on indefinitely reinvested earnings of certain non-U.S. subsidiaries that were previously tax deferred. We applied the guidance in Staff Accounting Bulletin No. 118 when accounting for the enactment-date effects of the Tax Act in 2017 and throughout 2018. As of December 31, 2017, we had not completed our accounting for the enactment-date income tax effects of the Tax Act for the following aspects: one-time tax on indefinitely reinvested earnings and the effects on our existing deferred tax balances. As of December 31, 2018, we completed our accounting for the enactment-date income tax effects of the Tax Act. We booked a provisional amount of $773 million in 2017 and reduced our provisional amount by $44 million in 2018, for a net of $729 million. The Tax Act also included the global intangible low-taxed income (GILTI) tax for years beginning in 2018. We account for the effects of GILTI as a component of income tax expense in the period in which the tax arises.

The earnings represented by non-cash operating assets, such as fixed assets and certain inventory, will continue to be permanently reinvested outside the United States. The tax on indefinitely reinvested earnings eliminates any additional U.S. taxation of these earnings upon repatriation to the United States. Consequently, no U.S. tax provision has been made for the future remittance of these earnings. However, withholding taxes in certain non-U.S. jurisdictions will be incurred upon repatriation of available cash to the United States. A provision has been made for deferred taxes on these undistributed earnings to the extent that dividend payments from these subsidiaries are expected to result in a withholding tax liability. As of December 31, 2018, we have no basis differences that would result in material unrecognized deferred tax liabilities.

Our effective tax rate is affected by U.S. tax benefits and tax rates applicable to our operations in many of the jurisdictions in which we operate, most of which were lower than the U.S. statutory income tax rate prior to enactment of the Tax Act. These non-U.S. tax rates are generally statutory in nature and without expiration.

The primary components of deferred tax assets and liabilities are as follows:

	December 31,
	2018			2017
Deferred tax assets:
Deferred loss and tax credit carryforwards	$	247		$	256
Accrued expenses		129			119
Stock compensation		122			107
Inventories and related reserves		107			93
Retirement costs for defined benefit and retiree health care		80			38
Other		—			9
Total deferred tax assets, before valuation allowance		685			622
Valuation allowance		(172	)		(165	)
Total deferred tax assets, after valuation allowance		513			457
Deferred tax liabilities:
Acquisition-related intangibles and fair-value adjustments		(142	)		(207	)
International earnings		(43	)		(64	)
Other		(75	)		—
Total deferred tax liabilities		(260	)		(271	)
Net deferred tax asset	$	253		$	186

The deferred tax assets and liabilities based on tax jurisdictions are presented on our Consolidated Balance Sheets as follows:

	December 31,
	2018			2017
Deferred tax assets	$	295		$	264
Deferred tax liabilities		(42	)		(78	)
Net deferred tax asset	$	253		$	186

We make an ongoing assessment regarding the realization of U.S. and non-U.S. deferred tax assets. This assessment is based on our evaluation of relevant criteria, including the existence of deferred tax liabilities that can be used to absorb deferred tax assets, taxable income in prior carryback years and expectations for future taxable income. Valuation allowances increased by $7 million and $37 million in 2018 and 2017, respectively. These changes had no impact to net income in 2018 or 2017.

We have U.S. and non-U.S. tax loss carryforwards of approximately $6 million, none of which will expire before the year 2028.

Cash payments made for income taxes, net of refunds, were $705 million, $1.80 billion and $1.15 billion in 2018, 2017 and 2016, respectively.

Uncertain tax positions

We operate in a number of tax jurisdictions, and our income tax returns are subject to examination by tax authorities in those jurisdictions who may challenge any item on these tax returns. Because the matters challenged by authorities are typically complex, their ultimate outcome is uncertain. Before any benefit can be recorded in our financial statements, we must determine that it is “more likely than not” that a tax position will be sustained by the appropriate tax authorities. We recognize accrued interest related to uncertain tax positions and penalties as components of OI&E.

The changes in the total amounts of uncertain tax positions are as follows:

	2018			2017			2016
Balance, January 1	$	300		$	243		$	84
Additions based on tax positions related to the current year		3			17			4
Additions for tax positions of prior years		1			42			189
Reductions for tax positions of prior years		—			(1	)		(2	)
Settlements with tax authorities		(18	)		(1	)		(32	)
Balance, December 31	$	286		$	300		$	243

Interest income (expense) recognized in the year ended December 31	$	(15	)	$	(19	)	$	4

Interest receivable (payable) as of December 31	$	(49	)	$	(38	)	$	13

The liability for uncertain tax positions is a component of other long-term liabilities on our Consolidated Balance Sheets.

All of the $286 million and $300 million liabilities for uncertain tax positions as of December 31, 2018 and 2017, respectively, are comprised of positions that, if recognized, would lower the effective tax rate. If these liabilities are ultimately realized, $30 million and $13 million of existing deferred tax assets in 2018 and 2017, respectively, would also be realized. It is reasonably possible that the $286 million liability as of December 31, 2018, could decrease by up to $223 million in 2019 for the resolution of a tax depreciation-related position.

As of December 31, 2018, the statute of limitations remains open for U.S. federal tax returns for 2013 and following years. Audit activities related to our U.S. federal tax returns through 2012 have been completed except for certain pending tax treaty procedures for relief from double taxation. The procedures for relief from double taxation pertain to U.S. federal tax returns for the years 2006 through 2012. The audit of the U.S. federal tax returns for 2013 through 2015 is underway.

In non-U.S. jurisdictions, the years open to audit represent the years still open under the statute of limitations. With respect to major jurisdictions outside the United States, our subsidiaries are no longer subject to income tax audits for years before 2007.

Financial Instruments and Risk Concentration

12 Months Ended

Dec. 31, 2018

Risks And Uncertainties [Abstract]

Financial instruments and risk concentration

6. Financial instruments and risk concentration

Financial instruments

We hold derivative financial instruments such as forward foreign currency exchange contracts, the fair value of which was not material as of December 31, 2018. Our forward foreign currency exchange contracts outstanding as of December 31, 2018, had a notional value of $525 million to hedge our non-U.S. dollar net balance sheet exposures, including $160 million to sell Japanese yen, $99 million to sell euros and $94 million to sell Indian rupees.

Our investments in cash equivalents, short-term investments and certain long-term investments, as well as our deferred compensation liabilities, are carried at fair value. Our postretirement plan assets are carried at fair value or net asset value per share. The carrying values for other current financial assets and liabilities, such as accounts receivable and accounts payable, approximate fair value due to the short maturity of such instruments. The carrying value of our long-term debt approximates the fair value as measured using broker-dealer quotes, which are Level 2 inputs. See Note 7 for a description of fair value and the definition of Level 2 inputs.

Risk concentration

We are subject to counterparty risks from financial institutions, customers and issuers of debt securities. Financial instruments that could subject us to concentrations of credit risk are primarily cash deposits, cash equivalents, short-term investments and accounts receivable. To manage our credit risk exposure, we place cash investments in investment-grade debt securities and limit the amount of credit exposure to any one issuer. We also limit counterparties on cash deposits and financial derivative contracts to financial institutions with investment-grade ratings.

Concentrations of credit risk with respect to accounts receivable are limited due to our large number of customers and their dispersion across different industries and geographic areas. We maintain allowances for expected returns, disputes, adjustments, incentives and collectability. These allowances are deducted from accounts receivable on our Consolidated Balance Sheets.

Details of these accounts receivable allowances are as follows:

	2018		2017			2016
Balance, January 1	$	8	$	17		$	7
Amounts charged (credited) to operating results		11		(9	)		10
Recoveries and write-offs, net		—		—			—
Balance, December 31	$	19	$	8		$	17

Major customer

No end customer accounted for 10 percent or more of revenue in 2018, 2017 or 2016.

Valuation of Debt and Equity Investments and Certain Liabilities

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Valuation of debt and equity investments and certain liabilities

7. Valuation of debt and equity investments and certain liabilities

Debt and equity investments measured at fair value

Available-for-sale debt investments and trading securities are stated at fair value, which is generally based on market prices or broker quotes. See Fair-value considerations below. Unrealized gains and losses from available-for-sale debt securities are recorded as an increase or decrease, net of taxes, in AOCI on our Consolidated Balance Sheets. Other-than-temporary impairments on available-for-sale debt securities are recorded in OI&E in our Consolidated Statements of Income.

We classify certain mutual funds as trading securities. These mutual funds hold a variety of debt and equity investments intended to generate returns that offset changes in certain deferred compensation liabilities. We record changes in the fair value of these mutual funds and the related deferred compensation liabilities in SG&A.

Other equity investments

Our other investments include equity-method investments and non-marketable equity investments, which are not measured at fair value. These investments consist of interests in venture capital funds and other non-marketable equity securities. Gains and losses from equity-method investments are recognized in OI&E based on our ownership share of the investee’s financial results.

Non-marketable equity securities are measured at cost with adjustments for observable changes in price or impairments. Prior to our adoption of ASU 2016-01 in 2018, these securities were accounted for using the cost method of accounting, measured at cost less other-than-temporary impairment. Gains and losses on non-marketable equity investments are recognized in OI&E.

Details of our investments are as follows:

	December 31, 2018						December 31, 2017
	Cash and Cash		Short-Term		Long-Term		Cash and Cash		Short-Term		Long-Term
	Equivalents		Investments		Investments		Equivalents		Investments		Investments
Measured at fair value:
Available-for-sale debt securities:
Money market funds	$	747	$	—	$	—	$	525	$	—	$	—
Corporate obligations		473		748		—		172		698		—
U.S. government agency and Treasury securities		988		1,047		—		700		2,115		—
Trading securities:
Mutual funds		—		—		226		—		—		236
Total		2,208		1,795		226		1,397		2,813		236

Other measurement basis:
Equity-method investments		—		—		21		—		—		26
Non-marketable equity investments		—		—		4		—		—		6
Cash on hand		230		—		—		259		—		—
Total	$	2,438	$	1,795	$	251	$	1,656	$	2,813	$	268

As of December 31, 2018 and 2017, unrealized gains and losses associated with our available-for-sale investments were not material. We did not recognize any credit losses related to available-for-sale investments in 2018, 2017 or 2016.

In 2018, 2017 and 2016, the proceeds from sales, redemptions and maturities of short-term available-for-sale investments were $6.71 billion, $4.10 billion and $3.39 billion, respectively. Gross realized gains and losses from these sales were not material.

The following table presents the aggregate maturities of our available-for-sale debt investments as of December 31, 2018:

	Fair Value
One year or less	$	3,838
One to two years		165

There were no other-than-temporary declines and impairments in the values of our debt investments in 2018, 2017 or 2016.

Fair-value considerations

We measure and report certain financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.

The three-level hierarchy discussed below indicates the extent and level of judgment used to estimate fair-value measurements.

•

Level 1 – Uses unadjusted quoted prices that are available in active markets for identical assets or liabilities as of the reporting date.

•

Level 2 – Uses inputs other than Level 1 that are either directly or indirectly observable as of the reporting date through correlation with market data, including quoted prices for similar assets and liabilities in active markets and quoted prices in markets that are not active. Level 2 also includes assets and liabilities that are valued using models or other pricing methodologies that do not require significant judgment since the input assumptions used in the models, such as interest rates and volatility factors, are corroborated by readily observable data. We utilize a third-party data service to provide Level 2 valuations. We verify these valuations for reasonableness relative to unadjusted quotes obtained from brokers or dealers based on observable prices for similar assets in active markets.

•

Level 3 – Uses inputs that are unobservable, supported by little or no market activity and reflect the use of significant management judgment. These values are generally determined using pricing models that utilize management estimates of market participant assumptions. As of December 31, 2018 and 2017, we had no Level 3 assets or liabilities, other than certain assets held by our postretirement plans.

The following are our assets and liabilities that were accounted for at fair value on a recurring basis. These tables do not include cash on hand, assets held by our postretirement plans, or assets and liabilities that are measured at historical cost or any basis other than fair value.

	December 31, 2018						December 31, 2017
	Level 1		Level 2		Total		Level 1		Level 2		Total
Assets:
Money market funds	$	747	$	—	$	747	$	525	$	—	$	525
Corporate obligations		—		1,221		1,221		—		870		870
U.S. government agency and Treasury securities		2,035		—		2,035		2,765		50		2,815
Mutual funds		226		—		226		236		—		236
Total assets	$	3,008	$	1,221	$	4,229	$	3,526	$	920	$	4,446

Liabilities:
Deferred compensation	$	246	$	—	$	246	$	255	$	—	$	255
Total liabilities	$	246	$	—	$	246	$	255	$	—	$	255

Goodwill and Acquisition-Related Intangibles

12 Months Ended

Dec. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and acquisition-related intangibles

8. Goodwill and acquisition-related intangibles

Goodwill by segment as of December 31, 2018 and 2017, is as follows:

	Goodwill
Analog	$	4,158
Embedded Processing		172
Other		32
Total	$	4,362

We perform our annual goodwill impairment test as of October 1 and determine whether the fair value of each of our reporting units is in excess of its carrying value. Determination of fair value is based upon management estimates and judgment, using unobservable inputs in discounted cash flow models to calculate the fair value of each reporting unit. These unobservable inputs are considered Level 3 measurements, as described in Note 7. In 2018, 2017 and 2016, we determined no impairment was indicated.

The components of acquisition-related intangibles are as follows:

	Amortization	December 31, 2018						December 31, 2017
	Period	Gross Carrying		Accumulated				Gross Carrying		Accumulated
	(Years)	Amount		Amortization		Net		Amount		Amortization		Net
Developed technology	7 - 10	$	2,125	$	1,573	$	552	$	2,130	$	1,361	$	769
Customer relationships	8		810		734		76		810		633		177
Total		$	2,935	$	2,307	$	628	$	2,940	$	1,994	$	946

Acquisition charges

Acquisition charges represent the ongoing amortization of intangible assets resulting from the acquisition of National Semiconductor Corporation. These amounts are included in Other for segment reporting purposes, consistent with how management measures the performance of its segments.

Amortization of acquisition-related intangibles was $318 million, $318 million and $319 million in 2018, 2017 and 2016, respectively. Fully amortized assets are written off against accumulated amortization. Remaining estimated amortization is as follows:

	Amortization of Acquisition-Related Intangibles
2019	$	288
2020		198
2021		142

Postretirement Benefit Plans

12 Months Ended

Dec. 31, 2018

Compensation And Retirement Disclosure [Abstract]

Postretirement benefit plans

9. Postretirement benefit plans

Plan descriptions

We have various employee retirement plans, including defined contribution, defined benefit and retiree health care benefit plans. For qualifying employees, we offer deferred compensation arrangements.

U.S. retirement plans

Our principal retirement plans in the United States are a defined contribution plan; an enhanced defined contribution plan; and qualified and non-qualified defined benefit pension plans. The defined benefit plans were closed to new participants in 1997, and then current participants were allowed to make a one-time election to continue accruing a benefit in the plans, or to cease accruing a benefit and instead to participate in the enhanced defined contribution plan described below.

Both defined contribution plans offer an employer-matching savings option that allows employees to make pre-tax and post-tax contributions to various investment choices. Employees who elected to continue accruing a benefit in the qualified defined benefit pension plans may also participate in the defined contribution plan, where employer-matching contributions are provided for up to 2 percent of the employee’s annual eligible earnings. Employees who elected not to continue accruing a benefit in the defined benefit pension plans, and employees hired after November 1997 and through December 31, 2003, may participate in the enhanced defined contribution plan. This plan provides for a fixed employer contribution of 2 percent of the employee’s annual eligible earnings, plus an employer-matching contribution of up to 4 percent of the employee’s annual eligible earnings. Employees hired after December 31, 2003, do not receive the fixed employer contribution of 2 percent of the employee’s annual eligible earnings.

As of December 31, 2018 and 2017, as a result of employees’ elections, TI’s U.S. defined contribution plans held shares of TI common stock totaling 9 million shares and 10 million shares valued at $821 million and $1.00 billion, respectively. Dividends paid on these shares in 2018 and 2017 were $24 million and $22 million, respectively. Effective April 1, 2016, the TI common stock fund was frozen to new contributions or transfers into the fund.

Our aggregate expense for the U.S. defined contribution plans was $61 million in 2018 and 2017 and $60 million in 2016.

The defined benefit pension plans include employees still accruing benefits, as well as employees and participants who no longer accrue service-related benefits, but instead, may participate in the enhanced defined contribution plan. Benefits under the qualified defined benefit pension plan are determined using a formula based upon years of service and the highest five consecutive years of compensation. We intend to contribute amounts to this plan to meet the minimum funding requirements of applicable local laws and regulations, plus such additional amounts as we deem appropriate. The non-qualified defined benefit plans are unfunded and closed to new participants.

U.S. retiree health care benefit plan

U.S. employees who meet eligibility requirements are offered medical coverage during retirement. We make a contribution toward the cost of those retiree medical benefits for certain retirees and their dependents. The contribution rates are based upon various factors, the most important of which are an employee’s date of hire, date of retirement, years of service and eligibility for Medicare benefits. The balance of the cost is borne by the plan’s participants. Employees hired after January 1, 2001, are responsible for the full cost of their medical benefits during retirement.

Non-U.S. retirement plans

We provide retirement coverage for non-U.S. employees, as required by local laws or to the extent we deem appropriate, through a number of defined benefit and defined contribution plans. Retirement benefits are generally based on an employee’s years of service and compensation. Funding requirements are determined on an individual country and plan basis and are subject to local country practices and market circumstances.

As of December 31, 2018 and 2017, as a result of employees’ elections, TI’s non-U.S. defined contribution plans held TI common stock valued at $23 million and $27 million, respectively. Dividends paid on these shares of TI common stock in 2018 and 2017 were not material.

Effects on our Consolidated Statements of Income and Balance Sheets

Expense related to defined benefit and retiree health care benefit plans is as follows:

	U.S. Defined Benefit									U.S. Retiree Health Care									Non-U.S. Defined Benefit
	2018			2017			2016			2018			2017			2016			2018			2017			2016
Service cost	$	19		$	22		$	22		$	5		$	5		$	5		$	36		$	37		$	34
Interest cost		35			42			42			15			17			20			45			44			52
Expected return on plan assets		(42	)		(41	)		(41	)		(15	)		(17	)		(20	)		(67	)		(62	)		(68	)
Amortization of prior service credit		—			—			—			(3	)		(4	)		(3	)		(1	)		(2	)		(2	)
Recognized net actuarial loss		17			14			21			2			3			7			20			28			25
Net periodic benefit costs		29			37			44			4			4			9			33			45			41
Settlement losses		23			36			21			—			—			—			3			2			2
Total, including other postretirement losses	$	52		$	73		$	65		$	4		$	4		$	9		$	36		$	47		$	43

All defined benefit and retiree health care benefit plan expense components other than service cost are recognized in OI&E in our Consolidated Statements of Income. Service cost is recognized within operating profit.

For the U.S. qualified pension and retiree health care plans, the expected return on plan assets component of net periodic benefit cost is based upon a market-related value of assets. In accordance with U.S. GAAP, the market-related value of assets is the fair value adjusted by a smoothing technique whereby certain gains and losses are phased in over a period of three years.

Changes in the benefit obligations and plan assets for defined benefit and retiree health care benefit plans are as follows:

	U.S.						U.S.						Non-U.S.
	Defined Benefit						Retiree Health Care						Defined Benefit
	2018			2017			2018			2017			2018			2017
Change in plan benefit obligation
Benefit obligation at beginning of year:	$	998		$	1,030		$	414		$	434		$	2,469		$	2,361
Service cost		19			22			5			5			36			37
Interest cost		35			42			15			17			45			44
Participant contributions		—			—			11			9			7			6
Benefits paid		(10	)		(9	)		(41	)		(39	)		(87	)		(90	)
Settlements		(100	)		(196	)		—			—			(16	)		(13	)
Actuarial loss (gain)		(68	)		109			(43	)		(15	)		6			(52	)
Plan amendments		—			—			—			3			7			—
Effects of exchange rate changes		—			—			—			—			(56	)		176
Benefit obligation at end of year	$	874		$	998		$	361		$	414		$	2,411		$	2,469

Change in plan assets
Fair value of plan assets at beginning of year:	$	995		$	1,034		$	394		$	434		$	2,593		$	2,309
Actual return on plan assets		(56	)		123			(12	)		44			(52	)		148
Employer contributions (qualified plans)		20			25			1			1			19			56
Employer contributions (non-qualified plans)		20			18			—			—			—			—
Participant contributions		—			—			11			9			7			6
Benefits paid		(10	)		(9	)		(41	)		(39	)		(87	)		(90	)
Settlements		(100	)		(196	)		—			—			(16	)		(13	)
Effects of exchange rate changes		—			—			—			—			(54	)		177
Other		—			—			(23	)		(55	)		—			—
Fair value of plan assets at end of year	$	869		$	995		$	330		$	394		$	2,410		$	2,593

Funded status at end of year	$	(5	)	$	(3	)	$	(31	)	$	(20	)	$	(1	)	$	124

Amounts recognized on our Consolidated Balance Sheets as of December 31, are as follows:

	U.S. Defined			U.S. Retiree			Non-U.S.
	Benefit			Health Care			Defined Benefit			Total
2018
Overfunded retirement plans	$	40		$	—		$	52		$	92
Accrued expenses and other liabilities & other long-term liabilities		(8	)		—			(3	)		(11	)
Underfunded retirement plans		(37	)		(31	)		(50	)		(118	)
Funded status at end of 2018	$	(5	)	$	(31	)	$	(1	)	$	(37	)

2017
Overfunded retirement plans	$	58		$	—		$	150		$	208
Accrued expenses and other liabilities & other long-term liabilities		(13	)		—			(5	)		(18	)
Underfunded retirement plans		(48	)		(20	)		(21	)		(89	)
Funded status at end of 2017	$	(3	)	$	(20	)	$	124		$	101

Contributions to the plans meet or exceed all minimum funding requirements. We expect to contribute about $50 million to our retirement benefit plans in 2019. The amounts shown for underfunded U.S. defined benefit plans were for non-qualified pension plans, which we do not fund because contributions to them are not tax deductible.

Accumulated benefit obligations, which are generally less than the projected benefit obligations as they exclude the impact of future salary increases, were $793 million and $899 million as of December 31, 2018 and 2017, respectively, for the U.S. defined benefit plans, and $2.29 billion and $2.33 billion as of December 31, 2018 and 2017, respectively, for the non-U.S. defined benefit plans.

The change in AOCI is as follows:

	U.S. Defined			U.S. Retiree						Non-U.S.
	Benefit			Health Care						Defined Benefit						Total
	Net Actuarial Loss			Net Actuarial Loss			Prior Service Credit			Net Actuarial Loss			Prior Service Credit			Net Actuarial Loss			Prior Service Credit
AOCI balance, net of taxes, December 31, 2017	$	118		$	29		$	(6	)	$	247		$	(4	)	$	394		$	(10	)
Changes in AOCI by category:
Adjustments		29			(16	)		—			120			7			133			7
Recognized within net income		(39	)		(2	)		3			(24	)		1			(65	)		4
Tax effect		2			4			(1	)		(26	)		(1	)		(20	)		(2	)
Cumulative effect of accounting changes (a)		25			6			(1	)		—			—			31			(1	)
Total change to AOCI		17			(8	)		1			70			7			79			8
AOCI balance, net of taxes, December 31, 2018	$	135		$	21		$	(5	)	$	317		$	3		$	473		$	(2	)

(a)Reflects the adoption of ASU 2018-02. See Note 2 for additional information.

The estimated amounts of net actuarial loss and unrecognized prior service cost (credit) included in AOCI as of December 31, 2018, that are expected to be amortized into net periodic benefit cost over the next fiscal year are: $10 million and none for the U.S. defined benefit plans; none and ($2) million for the U.S. retiree health care benefit plan; and $29 million and $1 million for the non-U.S. defined benefit plans.

Information on plan assets

We report and measure the plan assets of our defined benefit pension and other postretirement plans at fair value. The tables below set forth the fair value of our plan assets using the same three-level hierarchy of fair-value inputs described in Note 7.

	December 31, 2018
	Level 1		Level 2		Level 3		Other (a)		Total
Assets of U.S. defined benefit plan:
Fixed income securities and cash equivalents	$	—	$	—	$	—	$	563	$	563
Equity securities		—		—		—		306		306
Total	$	—	$	—	$	—	$	869	$	869

Assets of U.S. retiree health care plan:
Fixed income securities and cash equivalents	$	59	$	—	$	—	$	155	$	214
Equity securities		—		—		—		116		116
Total	$	59	$	—	$	—	$	271	$	330

Assets of non-U.S. defined benefit plans:
Fixed income securities and cash equivalents	$	47	$	139	$	—	$	1,602	$	1,788
Equity securities		33		1		—		588		622
Total	$	80	$	140	$	—	$	2,190	$	2,410

(a)Consists of bond index and equity index funds, measured at net asset value per share, as well as cash equivalents.

	December 31, 2017
	Level 1		Level 2		Level 3		Other (a)		Total
Assets of U.S. defined benefit plan:
Fixed income securities and cash equivalents	$	—	$	—	$	—	$	654	$	654
Equity securities		—		—		—		341		341
Total	$	—	$	—	$	—	$	995	$	995

Assets of U.S. retiree health care plan:
Fixed income securities and cash equivalents	$	132	$	2	$	—	$	111	$	245
Equity securities		—		—		—		149		149
Total	$	132	$	2	$	—	$	260	$	394

Assets of non-U.S. defined benefit plans:
Fixed income securities and cash equivalents	$	16	$	183	$	—	$	1,646	$	1,845
Equity securities		7		23		—		717		747
Other		—		—		1		—		1
Total	$	23	$	206	$	1	$	2,363	$	2,593

(a)	Consists of bond index and equity index funds, measured at net asset value per share, as well as cash equivalents.

The investments in our major benefit plans largely consist of low-cost, broad-market index funds to mitigate risks of concentration within market sectors. Our investment policy is designed to better match the interest rate sensitivity of the plan assets and liabilities. The appropriate mix of equity and bond investments is determined primarily through the use of detailed asset-liability modeling studies that look to balance the impact of changes in the discount rate against the need to provide asset growth to cover future service cost. Most of our plans around the world have a greater proportion of fixed income securities with return characteristics that are more closely aligned with changes in the liabilities caused by discount rate volatility. For the U.S. plans, we utilize an option collar strategy to reduce the volatility of returns on certain investments in U.S. equity funds.

The only Level 3 asset in our worldwide benefit plans for the periods presented is a diversified property fund in a non-U.S. pension plan. These investments are valued using inputs from the fund managers and internal models. Changes to the fair value of this fund since December 31, 2016, have not been material, and are due to redemptions.

Assumptions and investment policies

	U.S.		U.S. Retiree		Non-U.S.
	Defined Benefit		Health Care		Defined Benefit
	2018	2017	2018	2017	2018	2017
Weighted average assumptions used to determine benefit obligations:
Discount rate	4.37%	3.75%	4.30%	3.63%	1.85%	1.84%
Long-term pay progression	3.30%	3.30%	n/a	n/a	2.96%	2.96%

Weighted average assumptions used to determine net periodic benefit cost:
Discount rate	3.77%	4.21%	3.63%	4.08%	1.84%	1.76%
Long-term rate of return on plan assets	4.80%	4.30%	4.10%	4.10%	2.58%	2.60%
Long-term pay progression	3.30%	3.30%	n/a	n/a	2.96%	3.11%

We utilize a variety of methods to select an appropriate discount rate depending on the depth of the corporate bond market in the country in which the benefit plan operates. In the United States, we use a settlement approach whereby a portfolio of bonds is selected from the universe of actively traded high-quality U.S. corporate bonds. The selected portfolio is designed to provide cash flows sufficient to pay the plan’s expected benefit payments when due. The resulting discount rate reflects the rate of return of the selected portfolio of bonds. For our non-U.S. locations with a sufficient number of actively traded high-quality bonds, an analysis is performed in which the projected cash flows from the defined benefit plans are discounted against a yield curve constructed with an appropriate universe of high-quality corporate bonds available in each country. In this manner, a present value is developed. The discount rate selected is the single equivalent rate that produces the same present value. For countries that lack a sufficient corporate bond market, a government bond index adjusted for an appropriate risk premium is used to establish the discount rate.

Assumptions for the expected long-term rate of return on plan assets are based on future expectations for returns for each asset class and the effect of periodic target asset allocation rebalancing. We adjust the results for the payment of reasonable expenses of the plan from plan assets. We believe our assumptions are appropriate based on the investment mix and long-term nature of the plans’ investments. Assumptions used for the non-U.S. defined benefit plans reflect the different economic environments within the various countries.

The target allocation ranges for the plans that hold a substantial majority of the defined benefit assets are as follows:

	U.S. Defined	U.S. Retiree	Non-U.S.
	Benefit	Health Care	Defined Benefit
Fixed income securities and cash equivalents	65%	55% - 65%	60% - 100%
Equity securities	35%	35% - 45%	0% - 40%

We rebalance the plans’ investments when they are not within the target allocation ranges.

Weighted average asset allocations as of December 31 are as follows:

	U.S. Defined		U.S. Retiree		Non-U.S. Defined
	Benefit		Health Care		Benefit
	2018	2017	2018	2017	2018	2017
Fixed income securities and cash equivalents	65%	66%	65%	62%	74%	71%
Equity securities	35%	34%	35%	38%	26%	29%

None of the plan assets related to the defined benefit pension plans and retiree health care benefit plan are directly invested in TI common stock. As of December 31, 2018, we do not expect to return any of the defined benefit pension plans’ assets to TI in the next 12 months.

The following assumed future benefit payments to plan participants in the next 10 years are used to measure our benefit obligations. Almost all of the payments, which may vary significantly from these assumptions, will be made from plan assets and not from company assets.

	U.S. Defined		U.S. Retiree		Non-U.S.
	Benefit		Health Care		Defined Benefit
2019	$	78	$	32	$	88
2020		105		31		90
2021		77		30		92
2022		79		29		95
2023		85		28		95
2024 – 2028		428		124		510

Assumed health care cost trend rates for the U.S. retiree health care benefit plan as of December 31 are as follows:

	2018			2017
Assumed health care cost trend rate for next year		7.25	%		7.50	%
Ultimate trend rate		5.00	%		5.00	%
Year in which ultimate trend rate is reached		2028			2028

A one percentage point increase or decrease in health care cost trend rates over all future periods would have increased or decreased the accumulated postretirement benefit obligation for the U.S. retiree health care benefit plan as of December 31, 2018, by $1 million. The service cost and interest cost components of 2018 plan expense would have increased or decreased by less than $1 million.

Deferred compensation arrangements

We have a deferred compensation plan that allows U.S. employees whose base salary and management responsibility exceed a certain level to defer receipt of a portion of their cash compensation. Payments under this plan are made based on the participant’s distribution election and plan balance. Participants can earn a return on their deferred compensation based on notional investments in the same investment funds that are offered in our defined contribution plans.

As of December 31, 2018, our liability to participants of the deferred compensation plans was $246 million and is recorded in other long-term liabilities on our Consolidated Balance Sheets. This amount reflects the accumulated participant deferrals and earnings thereon as of that date. As of December 31, 2018, we held $226 million in mutual funds related to these plans that are recorded in long-term investments on our Consolidated Balance Sheets, and serve as an economic hedge against changes in fair values of our other deferred compensation liabilities. We record changes in the fair value of the liability and the related investment in SG&A as discussed in Note 7.

Debt and Lines of Credit

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Debt and lines of credit

10. Debt and lines of credit

Short-term borrowings

We maintain a line of credit to support commercial paper borrowings, if any, and to provide additional liquidity through bank loans. As of December 31, 2018, we had a variable-rate revolving credit facility from a consortium of investment-grade banks that allows us to borrow up to $2 billion until March 2023. The interest rate on borrowings under this credit facility, if drawn, is indexed to the applicable London Interbank Offered Rate (LIBOR). As of December 31, 2018, our credit facility was undrawn, and we had no commercial paper outstanding.

Long-term debt

We retired $500 million of maturing debt in May 2018.

In the second quarter of 2018, we issued an aggregate principal amount of $1.5 billion of fixed-rate, long-term debt due in 2048, comprised of the issuance of $1.3 billion in May 2018 and an additional $200 million in June 2018. We incurred $16 million of issuance and other related costs. The proceeds of the offering were $1.5 billion, net of the original issuance discount and premium, and were used for general corporate purposes.

We retired $250 million of maturing debt in March 2017 and another $375 million in June 2017.

In May 2017, we issued an aggregate principal amount of $600 million of fixed-rate, long-term debt. The offering consisted of the reissuance of $300 million of 2.75% notes due in 2021 at a premium and the issuance of $300 million of 2.625% notes due in 2024 at a discount. We incurred $3 million of issuance and other related costs. The proceeds of the offerings were $605 million, net of the original issuance discount and premium, and were used for the repayment of maturing debt and general corporate purposes.

In November 2017, we issued a principal amount of $500 million of fixed-rate, long-term debt due in 2027. We incurred $3 million of issuance and other related costs. The proceeds of the offering were $494 million, net of the original issuance discount, and were used for general corporate purposes.

In May 2016, we issued a principal amount of $500 million of fixed-rate, long-term debt due in 2022. We incurred $3 million of issuance and other related costs. The proceeds of the offering were $499 million, net of the original issuance discount, and were used toward the repayment of a portion of $1.0 billion of maturing debt retired in May 2016.

Long-term debt outstanding is as follows:

	December 31,
	2018			2017
Notes due 2018 at 1.00%	$	—		$	500
Notes due 2019 at 1.65%		750			750
Notes due 2020 at 1.75%		500			500
Notes due 2021 at 2.75%		550			550
Notes due 2022 at 1.85%		500			500
Notes due 2023 at 2.25%		500			500
Notes due 2024 at 2.625%		300			300
Notes due 2027 at 2.90%		500			500
Notes due 2048 at 4.15%		1,500			—
Total debt		5,100			4,100
Net unamortized discounts, premiums and issuance costs		(32	)		(23	)
Total debt, including net unamortized discounts, premiums and issuance costs		5,068			4,077
Current portion of long-term debt		(749	)		(500	)
Long-term debt	$	4,319		$	3,577

Interest and debt expense was $125 million, $78 million and $80 million in 2018, 2017 and 2016, respectively. This was net of the amortized discounts, premiums and issuance costs. Cash payments for interest on long-term debt were $114 million, $75 million and $88 million in 2018, 2017 and 2016, respectively. Capitalized interest was not material.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Commitments and contingencies

11. Commitments and contingencies

Purchase commitments

Some of our purchase commitments include payments for software licenses and contractual agreements with suppliers where there is a fixed, non-cancellable payment schedule or minimum payments due with a reduced delivery schedule.

Operating leases

We conduct certain operations in leased facilities and also lease a portion of our data processing and other equipment. In addition, certain long-term supply agreements to purchase industrial gases are accounted for as operating leases. Lease agreements frequently include purchase and renewal provisions and require us to pay taxes, insurance and maintenance costs. Rental and lease expense incurred was $79 million, $81 million and $86 million in 2018, 2017 and 2016, respectively.

As of December 31, 2018, we had committed to make the following minimum payments under our purchase commitments and non-cancellable operating leases:


	Purchase		Operating
	Commitments		Leases
2019	$	389	$	56
2020		339		46
2021		130		36
2022		22		29
2023		15		18
Thereafter		15		39

Indemnification guarantees

We routinely sell products with an intellectual property indemnification included in the terms of sale. Historically, we have had only minimal, infrequent losses associated with these indemnities. Consequently, we cannot reasonably estimate any future liabilities that may result.

Warranty costs/product liabilities

We accrue for known product-related claims if a loss is probable and can be reasonably estimated. During the periods presented, there have been no material accruals or payments regarding product warranty or product liability. Historically, we have experienced a low rate of payments on product claims. Although we cannot predict the likelihood or amount of any future claims, we do not believe they will have a material adverse effect on our financial condition, results of operations or liquidity. Our stated warranties for semiconductor products obligate us to repair, replace or credit the purchase price of a covered product back to the buyer. Product claim consideration may exceed the price of our products.

General

We are subject to various legal and administrative proceedings. Although it is not possible to predict the outcome of these matters, we believe that the results of these proceedings will not have a material adverse effect on our financial condition, results of operations or liquidity.

Restructuring Charges/Other

12 Months Ended

Dec. 31, 2018

Restructuring And Related Activities [Abstract]

Restructuring charges/other

12. Restructuring charges/other

Restructuring charges/other are included in Other for segment reporting purposes and are comprised of the following components:

	For Years Ended December 31,
	2018			2017		2016
Restructuring charges (a)	$	6		$	11	$	25
Gains on sales of assets		(3	)		—		(40	)
Restructuring charges/other	$	3		$	11	$	(15	)

(a)	Includes severance and benefits, accelerated depreciation, changes in estimates or other exit costs.

Changes in accrued restructuring balances

	2018			2017			2016
Balance, January 1	$	29		$	40		$	32
Restructuring charges		6			11			25
Non-cash items (a)		(3	)		(1	)		(6	)
Payments		(4	)		(21	)		(11	)
Balance, December 31	$	28		$	29		$	40

(a)	Reflects charges for impacts of accelerated depreciation and changes in exchange rates.

The restructuring accrual balances are reported as a component of either accrued expenses and other liabilities or other long-term liabilities on our Consolidated Balance Sheets, depending on the expected timing of payment.

In February 2019, we entered into an agreement to sell our manufacturing facility in Greenock, Scotland. The sale is expected to close during the first quarter of 2019.

Supplemental Financial Information

12 Months Ended

Dec. 31, 2018

Disclosure Text Block Supplement [Abstract]

Supplemental financial information

13. Supplemental financial information

Other income (expense), net (OI&E)

	For Years Ended December 31,
	2018			2017			2016
Other income (a)	$	150		$	163		$	219
Other expense (b)		(52	)		(88	)		(64	)
Total	$	98		$	75		$	155

(a)	Other income includes interest, royalty and lease income; investment gains and losses; and other miscellaneous items. As of January 1, 2017, royalties are recorded in OI&E instead of revenue.

(b)	Other expense includes a portion of pension and other retiree benefit costs. It also includes currency gains and losses and tax interest expense.

Prepaid expenses and other current assets

	December 31,
	2018		2017
Prepaid taxes on intercompany inventory profits, net	$	132	$	768
Other		308		262
Total	$	440	$	1,030

Property, plant and equipment at cost

	Depreciable	December 31,
	Lives (Years)	2018		2017
Land	n/a	$	128	$	127
Buildings and improvements	5 - 40		2,497		2,467
Machinery and equipment	2 - 10		2,800		2,195
Total		$	5,425	$	4,789

Other long-term liabilities

	December 31,
	2018		2017
Long-term portion of tax on indefinitely reinvested earnings	$	506	$	635
Other		684		668
Total	$	1,190	$	1,303

Accumulated other comprehensive income (loss), net of taxes (AOCI)

	December 31,
	2018			2017
Postretirement benefit plans (a):
Net actuarial loss	$	(473	)	$	(394	)
Prior service credit		2			10
Cash flow hedge derivative instruments		(2	)		—
Total	$	(473	)	$	(384	)

(a)	Includes $30 million for the adoption of ASU 2018-02. See Note 2 for additional information.

Details on amounts reclassified out of accumulated other comprehensive income (loss), net of taxes, to net income

Our Consolidated Statements of Comprehensive Income include items that have been recognized within net income in 2018, 2017 and 2016. The table below details where these transactions are recorded in our Consolidated Statements of Income.

	For Years Ended									Impact to
	December 31,									Related Statement
	2018			2017			2016			of Income Lines
Net actuarial losses of defined benefit plans:
Recognized net actuarial loss and settlement losses (a)	$	65		$	83		$	76		Decrease to OI&E
Tax effect		(15	)		(27	)		(25	)	Decrease to provision for income taxes
Recognized within net income, net of taxes	$	50		$	56		$	51		Decrease to net income

Prior service credit of defined benefit plans:
Amortization of prior service credit (a)	$	(4	)	$	(6	)	$	(5	)	Increase to OI&E
Tax effect		1			1			2		Increase to provision for income taxes
Recognized within net income, net of taxes	$	(3	)	$	(5	)	$	(3	)	Increase to net income

Derivative instruments:
Amortization of treasury-rate locks	$	—		$	1		$	1		Increase to interest and debt expense
Tax effect		—			—			—		Decrease to provision for income taxes
Recognized within net income, net of taxes	$	—		$	1		$	1		Decrease to net income

(a)	Detailed in Note 9.

Quarterly financial data (unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly financial data (unaudited)

14. Quarterly financial data (unaudited)

	2018 Quarters									2017 Quarters
	4th			3rd		2nd		1st		4th		3rd		2nd		1st
Revenue	$	3,717		$	4,261	$	4,017	$	3,789	$	3,750	$	4,116	$	3,693	$	3,402
Gross profit		2,407			2,804		2,619		2,447		2,440		2,656		2,374		2,144
Included in operating profit:
Acquisition charges		79			80		79		80		79		80		79		80
Restructuring charges/other		(2	)		1		3		1		3		1		3		4
Operating profit		1,516			1,937		1,712		1,548		1,563		1,788		1,480		1,252
Net income		1,239			1,570		1,405		1,366		344		1,285		1,056		997

Basic EPS	$	1.29		$	1.61	$	1.43	$	1.38	$	0.35	$	1.29	$	1.05	$	0.99
Diluted EPS	$	1.27		$	1.58	$	1.40	$	1.35	$	0.34	$	1.26	$	1.03	$	0.97

Basis of Presentation and Significant Accounting Policies and Practices (Policies)

12 Months Ended

Dec. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Basis of presentation

The preparation of financial statements requires the use of estimates from which final results may vary.

Revenue recognition

Advertising costs

We expense advertising and other promotional costs as incurred. This expense was $34 million, $39 million and $44 million in 2018, 2017 and 2016, respectively.

Income taxes

Other assessed taxes

Earnings per share (EPS)

Investments

We present investments on our Consolidated Balance Sheets as cash equivalents, short-term investments or long-term investments, which are detailed below. See Note 7 for additional information.

•

Long-term investments – Long-term investments consist of mutual funds, venture capital funds and non-marketable equity securities.

Debt and equity investments measured at fair value

Other equity investments

Inventories

Property, plant and equipment; acquisition-related intangibles and other capitalized costs

Property, plant and equipment; acquisition-related intangibles; and other capitalized costs

Impairments of long-lived assets

Goodwill

Foreign currency

Derivatives and hedging

We do not use derivatives for speculative or trading purposes.

Changes in accounting standards

Changes in accounting standards – adopted standards for current period

Accounting Standard Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606)

ASU No. 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

Other standards

The following standards were also adopted:

ASU	Description	Adopted Date
ASU No. 2016-01	Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	January 1, 2018
ASU No. 2017-01	Business Combinations (Topic 805): Clarifying the Definition of a Business	January 1, 2018
ASU No. 2017-04	Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment	October 1, 2018
ASU No. 2017-05	Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets	January 1, 2018

Changes in accounting standards – standards not yet adopted

ASU No. 2016-02, Leases (Topic 842)

ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments

Other standards

ASU	Description	Effective Date
ASU No. 2017-12	Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities	January 1, 2019
ASU No. 2018-13	Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement	January 1, 2020
ASU No. 2018-14	Compensation – Retirement Benefits – Defined Benefit Plans – General (Subtopic 715-20): Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans	January 1, 2020
ASU No. 2018-15	Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract	January 1, 2020

Stock compensation

Risk-free interest rates are determined using the implied yield currently available for zero-coupon U.S. government issues with a remaining term equal to the expected life of the options.

The fair value per share of RSUs is determined based on the closing price of our common stock on the date of grant.

Fair values of financial instruments

Fair-value considerations

The three-level hierarchy discussed below indicates the extent and level of judgment used to estimate fair-value measurements.

•

Level 1 – Uses unadjusted quoted prices that are available in active markets for identical assets or liabilities as of the reporting date.

•

Indemnification guarantees and warranty costs/product liabilities

Indemnification guarantees

Warranty costs/product liabilities

Description of Business, Including Segment and Geographic Area Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule of Revenue and Operating Profit, by Segment

Segment information

	For Years Ended December 31,
	2018		2017		2016
Revenue:
Analog	$	10,801	$	9,900	$	8,536
Embedded Processing		3,554		3,498		3,023
Other		1,429		1,563		1,811
Total revenue	$	15,784	$	14,961	$	13,370

Operating profit:
Analog	$	5,109	$	4,468	$	3,416
Embedded Processing		1,205		1,143		817
Other		399		472		622
Total operating profit	$	6,713	$	6,083	$	4,855

Schedule of Revenue, by Geographic Area

	For Years Ended December 31,
	2018		2017		2016
Revenue:
United States	$	2,288	$	1,901	$	1,682
Asia (a)		9,240		8,824		8,024
Europe, Middle East and Africa		3,047		2,907		2,393
Japan		869		1,049		1,040
Rest of world		340		280		231
Total revenue	$	15,784	$	14,961	$	13,370

(a)	Revenue from products shipped into China was $7.0 billion, $6.6 billion and $6.0 billion in 2018, 2017 and 2016, respectively.

Schedule Property, Plant and Equipment by Geographic Area

		December 31,
	2018			2017
Property, plant and equipment:
United States	$		1,812	$	1,469
Asia (a)			1,116		964
Europe, Middle East and Africa			84		97
Japan			157		118
Rest of world			14		16
Total property, plant and equipment	$		3,183	$	2,664

(a)	Property, plant and equipment at our two sites in the Philippines was $437 million as of December 31, 2018 and 2017. Property, plant and equipment at our sites in China was $313 million and $236 million as of December 31, 2018 and 2017, respectively.

Basis of Presentation and Significant Accounting Policies and Practices (Tables)

12 Months Ended

Dec. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Earnings per Share, Basic and Diluted

Computation and reconciliation of earnings per common share are as follows (shares in millions):

	For Years Ended December 31,
	2018							2017							2016
	Net							Net							Net
	Income			Shares		EPS		Income			Shares		EPS		Income			Shares		EPS
Basic EPS:
Net income	$	5,580						$	3,682						$	3,595
Income allocated to RSUs		(43	)						(34	)						(45	)
Income allocated to common stock	$	5,537			970	$	5.71	$	3,648			991	$	3.68	$	3,550			1,003	$	3.54
Dilutive effect of stock compensation plans					20							21							18

Diluted EPS:
Net income	$	5,580						$	3,682						$	3,595
Income allocated to RSUs		(42	)						(33	)						(44	)
Income allocated to common stock	$	5,538			990	$	5.59	$	3,649			1,012	$	3.61	$	3,551			1,021	$	3.48

Stock Compensation (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Stock Compensation Expense Allocation Within the Consolidated Statements of Income

Total stock compensation expense recognized is as follows:

	For Years Ended December 31,
	2018		2017		2016
COR	$	25	$	36	$	40
R&D		69		59		60
SG&A		138		147		152
Total	$	232	$	242	$	252

Schedule of Weighted Average Assumptions Used to Estimate the Fair Values for Non-qualified Stock Options

We estimate the fair values for non-qualified stock options using the Black-Scholes-Merton option-pricing model with the following weighted average assumptions:

	For Years Ended December 31,
	2018			2017			2016
Weighted average grant date fair value, per share	$	23.20		$	16.49		$	10.03
Weighted average assumptions used:
Expected volatility		23	%		24	%		25	%
Expected lives (in years)		7.2			7.2			7.3
Risk-free interest rates		2.57	%		2.36	%		1.72	%
Expected dividend yields		2.25	%		2.52	%		2.87	%

Schedule of Stock Option and RSU Transactions Under Long-term Incentive and Director Compensation Plans

Stock option and RSU transactions under our long-term incentive and director compensation plans are as follows:

	Stock Options					RSUs
				Weighted Average					Weighted Average
				Exercise Price					Grant Date Fair
	Shares			per Share		Shares			Value per Share
Outstanding grants, December 31, 2017		44,754,593		$	48.49		9,225,643		$	55.40
Granted		4,617,486			110.07		1,247,239			110.05
Stock options exercised/RSUs vested		(8,432,458	)		42.63		(2,769,994	)		44.50
Forfeited and expired		(1,034,167	)		77.30		(397,345	)		70.34
Outstanding grants, December 31, 2018		39,905,454			56.10		7,305,543			66.72

Schedule of Shares Outstanding Under Stock Option Plans, by Exercise Price Range

Summarized information about stock options outstanding as of December 31, 2018, is as follows:

		Stock Options Outstanding						Options Exercisable
		Number		Weighted Average		Weighted Average		Number		Weighted Average
Exercise Price		Outstanding		Remaining Contractual		Exercise Price		Exercisable		Exercise Price
Range		(Shares)		Life (Years)		per Share		(Shares)		per Share
$	14.47 to 20.00		573,629		0.1	$	14.96		573,629	$	14.96
	20.01 to 40.00		9,508,056		2.9		31.21		9,508,056		31.21
	40.01 to 60.00		19,883,804		6.2		50.95		12,397,285		49.53
	60.01 to 80.00		5,612,386		8.1		79.21		1,143,118		79.20
	80.01 to 100.00		37,917		9.3		91.16		3,714		91.54
	100.01 to 113.30		4,289,662		9.1		110.15		—		—
	14.47 to 113.30		39,905,454		5.9		56.10		23,625,802		42.76

Schedule of Stock Options That are Vested and Expected to Vest, Outstanding and Exercisable

Summarized information as of December 31, 2018, about outstanding stock options that are vested and expected to vest, as well as stock options that are currently exercisable, is as follows:

	Outstanding Stock Options
	(Fully Vested and		Options
	Expected to Vest) (a)		Exercisable
Number of outstanding (shares)		39,274,492		23,625,802
Weighted average remaining contractual life (in years)		5.9		4.7
Weighted average exercise price per share	$	55.60	$	42.76
Intrinsic value (millions of dollars)	$	1,591	$	1,222

(a)	Includes effects of expected forfeitures of approximately 1 million shares. Excluding the effects of expected forfeitures, the aggregate intrinsic value of stock options outstanding was $1.60 billion.

Schedule of ESPP Transactions

ESPP transactions are as follows:

	ESPP
	(Shares)			Exercise Price
Outstanding grants, December 31, 2017		202,179		$	89.74
Granted		847,535			87.48
Exercised		(819,878	)		90.06
Outstanding grants, December 31, 2018		229,836			80.29

Schedule of Changes in Treasury Stock

The following table reflects the changes in our treasury shares:

	Stock Options			RSUs			Treasury Shares
Balance, December 31, 2015								729,547,527
Repurchases								35,480,036
Shares used for:
Stock options/RSUs		(14,516,606	)		(5,639,666	)
Stock applied to taxes		—			1,336,476
ESPP		(1,362,202	)		—
Director deferred stock units		—			—			(13,587	)
Total issued		(15,878,808	)		(4,303,190	)		(20,181,998	)
Balance, December 31, 2016								744,831,978

Repurchases								30,570,129
Shares used for:
Stock options/RSUs		(13,313,019	)		(4,419,464	)
Stock applied to taxes		—			1,058,100
ESPP		(1,065,757	)		—
Director deferred stock units		—			—			(4,750	)
Total issued		(14,378,776	)		(3,361,364	)		(17,740,140	)
Balance, December 31, 2017								757,657,217

Repurchases								49,482,220
Shares used for:
Stock options/RSUs		(8,432,458	)		(2,769,994	)
Stock applied to taxes		—			553,720
ESPP		(819,878	)		—
Director deferred stock units		—			—			(5,181	)
Total issued		(9,252,336	)		(2,216,274	)		(11,468,610	)
Balance, December 31, 2018								795,665,646

Schedule of Cash Proceeds Received from Share-based Payment Awards

The effects on cash flows are as follows:

	For Years Ended December 31,
	2018			2017			2016
Proceeds from common stock transactions (a)	$	373		$	483		$	472

Tax benefit realized from stock compensation	$	179		$	341		$	255
Reduction to deferred tax asset		(43	)		(91	)		(105	)
Excess tax benefit for stock compensation	$	136		$	250		$	150

(a)	Net of taxes paid for employee shares withheld of $60 million, $83 million and $70 million in 2018, 2017 and 2016, respectively.

Income taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income before income taxes

Income before income taxes is comprised of the following components:

	For Years Ended December 31,
	2018		2017		2016
U.S.	$	5,672	$	5,130	$	3,953
Non-U.S.		1,014		950		977
Total	$	6,686	$	6,080	$	4,930

Provision for income taxes

Provision for income taxes is comprised of the following components:

	For Years Ended December 31,
	2018							2017						2016
	Current		Deferred			Total		Current		Deferred		Total		Current		Deferred			Total
U.S. federal	$	979	$	(98	)	$	881	$	2,101	$	51	$	2,152	$	1,289	$	(122	)	$	1,167
Non-U.S.		225		(8	)		217		173		61		234		238		(80	)		158
U.S. state		7		1			8		12		—		12		10		—			10
Total	$	1,211	$	(105	)	$	1,106	$	2,286	$	112	$	2,398	$	1,537	$	(202	)	$	1,335

Principal reconciliation items from U.S. statutory income tax rate to the effective tax rate

Principal reconciling items from the U.S. statutory income tax rate to the effective tax rate (provision for income taxes as a percentage of income before income taxes) are as follows:

	For Years Ended December 31,
	2018			2017			2016
U.S. statutory income tax rate		21.0	%		35.0	%		35.0	%
U.S. tax benefit for foreign derived intangible income		(5.3	)		—			—
U.S. Tax Act transitional non-cash expense		4.2			—			—
U.S. Tax Act enactment-date effects and measurement period adjustments		(0.7	)		12.7			—
U.S. tax on global intangible low-taxed income		0.4			—			—
U.S. tax benefit for manufacturing		—			(1.6	)		(1.5	)
U.S. excess tax benefit for stock compensation		(2.0	)		(4.1	)		(3.0	)
U.S. R&D tax credit		(1.3	)		(1.1	)		(1.2	)
U.S. non-deductible expenses		0.2			0.2			0.3
Non-U.S. effective tax rates		0.1			(2.5	)		(3.7	)
Impact of changes to uncertain tax positions		—			0.7			0.6
Other		(0.1	)		0.1			0.6
Effective tax rate		16.5	%		39.4	%		27.1	%

Primary components of deferred tax assets and liabilities

The primary components of deferred tax assets and liabilities are as follows:

	December 31,
	2018			2017
Deferred tax assets:
Deferred loss and tax credit carryforwards	$	247		$	256
Accrued expenses		129			119
Stock compensation		122			107
Inventories and related reserves		107			93
Retirement costs for defined benefit and retiree health care		80			38
Other		—			9
Total deferred tax assets, before valuation allowance		685			622
Valuation allowance		(172	)		(165	)
Total deferred tax assets, after valuation allowance		513			457
Deferred tax liabilities:
Acquisition-related intangibles and fair-value adjustments		(142	)		(207	)
International earnings		(43	)		(64	)
Other		(75	)		—
Total deferred tax liabilities		(260	)		(271	)
Net deferred tax asset	$	253		$	186

Deferred tax assets and liabilities presentation on the Balance sheet

The deferred tax assets and liabilities based on tax jurisdictions are presented on our Consolidated Balance Sheets as follows:

	December 31,
	2018			2017
Deferred tax assets	$	295		$	264
Deferred tax liabilities		(42	)		(78	)
Net deferred tax asset	$	253		$	186

Summary of uncertain tax positions

The changes in the total amounts of uncertain tax positions are as follows:

	2018			2017			2016
Balance, January 1	$	300		$	243		$	84
Additions based on tax positions related to the current year		3			17			4
Additions for tax positions of prior years		1			42			189
Reductions for tax positions of prior years		—			(1	)		(2	)
Settlements with tax authorities		(18	)		(1	)		(32	)
Balance, December 31	$	286		$	300		$	243

Interest income (expense) recognized in the year ended December 31	$	(15	)	$	(19	)	$	4

Interest receivable (payable) as of December 31	$	(49	)	$	(38	)	$	13

Financial Instruments and Risk Concentration (Tables)

12 Months Ended

Dec. 31, 2018

Risks And Uncertainties [Abstract]

Details on Accounts Receivable Allowances

Details of these accounts receivable allowances are as follows:

	2018		2017			2016
Balance, January 1	$	8	$	17		$	7
Amounts charged (credited) to operating results		11		(9	)		10
Recoveries and write-offs, net		—		—			—
Balance, December 31	$	19	$	8		$	17

Valuation of Debt and Equity Investments and Certain Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Investments

Details of our investments are as follows:

	December 31, 2018						December 31, 2017
	Cash and Cash		Short-Term		Long-Term		Cash and Cash		Short-Term		Long-Term
	Equivalents		Investments		Investments		Equivalents		Investments		Investments
Measured at fair value:
Available-for-sale debt securities:
Money market funds	$	747	$	—	$	—	$	525	$	—	$	—
Corporate obligations		473		748		—		172		698		—
U.S. government agency and Treasury securities		988		1,047		—		700		2,115		—
Trading securities:
Mutual funds		—		—		226		—		—		236
Total		2,208		1,795		226		1,397		2,813		236

Other measurement basis:
Equity-method investments		—		—		21		—		—		26
Non-marketable equity investments		—		—		4		—		—		6
Cash on hand		230		—		—		259		—		—
Total	$	2,438	$	1,795	$	251	$	1,656	$	2,813	$	268

Aggregate Maturities of Available-for-sale Debt Investments

The following table presents the aggregate maturities of our available-for-sale debt investments as of December 31, 2018:

	Fair Value
One year or less	$	3,838
One to two years		165

Assets and Liabilities Accounted for at Fair Value

	December 31, 2018						December 31, 2017
	Level 1		Level 2		Total		Level 1		Level 2		Total
Assets:
Money market funds	$	747	$	—	$	747	$	525	$	—	$	525
Corporate obligations		—		1,221		1,221		—		870		870
U.S. government agency and Treasury securities		2,035		—		2,035		2,765		50		2,815
Mutual funds		226		—		226		236		—		236
Total assets	$	3,008	$	1,221	$	4,229	$	3,526	$	920	$	4,446

Liabilities:
Deferred compensation	$	246	$	—	$	246	$	255	$	—	$	255
Total liabilities	$	246	$	—	$	246	$	255	$	—	$	255

Goodwill and Acquisition-Related Intangibles (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill by segment as of December 31, 2018 and 2017, is as follows:

	Goodwill
Analog	$	4,158
Embedded Processing		172
Other		32
Total	$	4,362

Schedule of Acquisition-Related Intangible Assets

The components of acquisition-related intangibles are as follows:

	Amortization	December 31, 2018						December 31, 2017
	Period	Gross Carrying		Accumulated				Gross Carrying		Accumulated
	(Years)	Amount		Amortization		Net		Amount		Amortization		Net
Developed technology	7 - 10	$	2,125	$	1,573	$	552	$	2,130	$	1,361	$	769
Customer relationships	8		810		734		76		810		633		177
Total		$	2,935	$	2,307	$	628	$	2,940	$	1,994	$	946

Estimated Amortization of Acquisition-Related Finite Lived Intangibles for Remaining Years

Remaining estimated amortization is as follows:

	Amortization of Acquisition-Related Intangibles
2019	$	288
2020		198
2021		142

Postretirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2018

Compensation And Retirement Disclosure [Abstract]

Expense related to defined benefit and retiree health care benefit plans is as follows:

	U.S. Defined Benefit									U.S. Retiree Health Care									Non-U.S. Defined Benefit
	2018			2017			2016			2018			2017			2016			2018			2017			2016
Service cost	$	19		$	22		$	22		$	5		$	5		$	5		$	36		$	37		$	34
Interest cost		35			42			42			15			17			20			45			44			52
Expected return on plan assets		(42	)		(41	)		(41	)		(15	)		(17	)		(20	)		(67	)		(62	)		(68	)
Amortization of prior service credit		—			—			—			(3	)		(4	)		(3	)		(1	)		(2	)		(2	)
Recognized net actuarial loss		17			14			21			2			3			7			20			28			25
Net periodic benefit costs		29			37			44			4			4			9			33			45			41
Settlement losses		23			36			21			—			—			—			3			2			2
Total, including other postretirement losses	$	52		$	73		$	65		$	4		$	4		$	9		$	36		$	47		$	43

Schedule of Changes in the Benefit Obligations and Plan Assets for the Defined Benefit and Retiree Health Care Benefit Plans

Changes in the benefit obligations and plan assets for defined benefit and retiree health care benefit plans are as follows:

	U.S.						U.S.						Non-U.S.
	Defined Benefit						Retiree Health Care						Defined Benefit
	2018			2017			2018			2017			2018			2017
Change in plan benefit obligation
Benefit obligation at beginning of year:	$	998		$	1,030		$	414		$	434		$	2,469		$	2,361
Service cost		19			22			5			5			36			37
Interest cost		35			42			15			17			45			44
Participant contributions		—			—			11			9			7			6
Benefits paid		(10	)		(9	)		(41	)		(39	)		(87	)		(90	)
Settlements		(100	)		(196	)		—			—			(16	)		(13	)
Actuarial loss (gain)		(68	)		109			(43	)		(15	)		6			(52	)
Plan amendments		—			—			—			3			7			—
Effects of exchange rate changes		—			—			—			—			(56	)		176
Benefit obligation at end of year	$	874		$	998		$	361		$	414		$	2,411		$	2,469

Change in plan assets
Fair value of plan assets at beginning of year:	$	995		$	1,034		$	394		$	434		$	2,593		$	2,309
Actual return on plan assets		(56	)		123			(12	)		44			(52	)		148
Employer contributions (qualified plans)		20			25			1			1			19			56
Employer contributions (non-qualified plans)		20			18			—			—			—			—
Participant contributions		—			—			11			9			7			6
Benefits paid		(10	)		(9	)		(41	)		(39	)		(87	)		(90	)
Settlements		(100	)		(196	)		—			—			(16	)		(13	)
Effects of exchange rate changes		—			—			—			—			(54	)		177
Other		—			—			(23	)		(55	)		—			—
Fair value of plan assets at end of year	$	869		$	995		$	330		$	394		$	2,410		$	2,593

Funded status at end of year	$	(5	)	$	(3	)	$	(31	)	$	(20	)	$	(1	)	$	124

Schedule of Amounts Recognized in our Balance Sheet

Amounts recognized on our Consolidated Balance Sheets as of December 31, are as follows:

	U.S. Defined			U.S. Retiree			Non-U.S.
	Benefit			Health Care			Defined Benefit			Total
2018
Overfunded retirement plans	$	40		$	—		$	52		$	92
Accrued expenses and other liabilities & other long-term liabilities		(8	)		—			(3	)		(11	)
Underfunded retirement plans		(37	)		(31	)		(50	)		(118	)
Funded status at end of 2018	$	(5	)	$	(31	)	$	(1	)	$	(37	)

2017
Overfunded retirement plans	$	58		$	—		$	150		$	208
Accrued expenses and other liabilities & other long-term liabilities		(13	)		—			(5	)		(18	)
Underfunded retirement plans		(48	)		(20	)		(21	)		(89	)
Funded status at end of 2017	$	(3	)	$	(20	)	$	124		$	101

Schedule of Change in AOCI

The change in AOCI is as follows:

	U.S. Defined			U.S. Retiree						Non-U.S.
	Benefit			Health Care						Defined Benefit						Total
	Net Actuarial Loss			Net Actuarial Loss			Prior Service Credit			Net Actuarial Loss			Prior Service Credit			Net Actuarial Loss			Prior Service Credit
AOCI balance, net of taxes, December 31, 2017	$	118		$	29		$	(6	)	$	247		$	(4	)	$	394		$	(10	)
Changes in AOCI by category:
Adjustments		29			(16	)		—			120			7			133			7
Recognized within net income		(39	)		(2	)		3			(24	)		1			(65	)		4
Tax effect		2			4			(1	)		(26	)		(1	)		(20	)		(2	)
Cumulative effect of accounting changes (a)		25			6			(1	)		—			—			31			(1	)
Total change to AOCI		17			(8	)		1			70			7			79			8
AOCI balance, net of taxes, December 31, 2018	$	135		$	21		$	(5	)	$	317		$	3		$	473		$	(2	)

(a)Reflects the adoption of ASU 2018-02. See Note 2 for additional information.

Schedule of Allocation of Plan Assets

The tables below set forth the fair value of our plan assets using the same three-level hierarchy of fair-value inputs described in Note 7.

	December 31, 2018
	Level 1		Level 2		Level 3		Other (a)		Total
Assets of U.S. defined benefit plan:
Fixed income securities and cash equivalents	$	—	$	—	$	—	$	563	$	563
Equity securities		—		—		—		306		306
Total	$	—	$	—	$	—	$	869	$	869

Assets of U.S. retiree health care plan:
Fixed income securities and cash equivalents	$	59	$	—	$	—	$	155	$	214
Equity securities		—		—		—		116		116
Total	$	59	$	—	$	—	$	271	$	330

Assets of non-U.S. defined benefit plans:
Fixed income securities and cash equivalents	$	47	$	139	$	—	$	1,602	$	1,788
Equity securities		33		1		—		588		622
Total	$	80	$	140	$	—	$	2,190	$	2,410

(a)Consists of bond index and equity index funds, measured at net asset value per share, as well as cash equivalents.

	December 31, 2017
	Level 1		Level 2		Level 3		Other (a)		Total
Assets of U.S. defined benefit plan:
Fixed income securities and cash equivalents	$	—	$	—	$	—	$	654	$	654
Equity securities		—		—		—		341		341
Total	$	—	$	—	$	—	$	995	$	995

Assets of U.S. retiree health care plan:
Fixed income securities and cash equivalents	$	132	$	2	$	—	$	111	$	245
Equity securities		—		—		—		149		149
Total	$	132	$	2	$	—	$	260	$	394

Assets of non-U.S. defined benefit plans:
Fixed income securities and cash equivalents	$	16	$	183	$	—	$	1,646	$	1,845
Equity securities		7		23		—		717		747
Other		—		—		1		—		1
Total	$	23	$	206	$	1	$	2,363	$	2,593

(a)	Consists of bond index and equity index funds, measured at net asset value per share, as well as cash equivalents.

The target allocation ranges for the plans that hold a substantial majority of the defined benefit assets are as follows:

	U.S. Defined	U.S. Retiree	Non-U.S.
	Benefit	Health Care	Defined Benefit
Fixed income securities and cash equivalents	65%	55% - 65%	60% - 100%
Equity securities	35%	35% - 45%	0% - 40%

Weighted average asset allocations as of December 31 are as follows:

	U.S. Defined		U.S. Retiree		Non-U.S. Defined
	Benefit		Health Care		Benefit
	2018	2017	2018	2017	2018	2017
Fixed income securities and cash equivalents	65%	66%	65%	62%	74%	71%
Equity securities	35%	34%	35%	38%	26%	29%

Schedule of Assumptions Used

Assumptions and investment policies

	U.S.		U.S. Retiree		Non-U.S.
	Defined Benefit		Health Care		Defined Benefit
	2018	2017	2018	2017	2018	2017
Weighted average assumptions used to determine benefit obligations:
Discount rate	4.37%	3.75%	4.30%	3.63%	1.85%	1.84%
Long-term pay progression	3.30%	3.30%	n/a	n/a	2.96%	2.96%

Weighted average assumptions used to determine net periodic benefit cost:
Discount rate	3.77%	4.21%	3.63%	4.08%	1.84%	1.76%
Long-term rate of return on plan assets	4.80%	4.30%	4.10%	4.10%	2.58%	2.60%
Long-term pay progression	3.30%	3.30%	n/a	n/a	2.96%	3.11%

Schedule of Assumed Future Benefit Payments

	U.S. Defined		U.S. Retiree		Non-U.S.
	Benefit		Health Care		Defined Benefit
2019	$	78	$	32	$	88
2020		105		31		90
2021		77		30		92
2022		79		29		95
2023		85		28		95
2024 – 2028		428		124		510

Schedule of Assumed Health Care Cost Trend Rates for U.S Retiree Health Care Benefit Plan

Assumed health care cost trend rates for the U.S. retiree health care benefit plan as of December 31 are as follows:

	2018			2017
Assumed health care cost trend rate for next year		7.25	%		7.50	%
Ultimate trend rate		5.00	%		5.00	%
Year in which ultimate trend rate is reached		2028			2028

Debt and Lines of Credit (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt outstanding is as follows:

	December 31,
	2018			2017
Notes due 2018 at 1.00%	$	—		$	500
Notes due 2019 at 1.65%		750			750
Notes due 2020 at 1.75%		500			500
Notes due 2021 at 2.75%		550			550
Notes due 2022 at 1.85%		500			500
Notes due 2023 at 2.25%		500			500
Notes due 2024 at 2.625%		300			300
Notes due 2027 at 2.90%		500			500
Notes due 2048 at 4.15%		1,500			—
Total debt		5,100			4,100
Net unamortized discounts, premiums and issuance costs		(32	)		(23	)
Total debt, including net unamortized discounts, premiums and issuance costs		5,068			4,077
Current portion of long-term debt		(749	)		(500	)
Long-term debt	$	4,319		$	3,577

Commitments And Contingencies Disclosure [Abstract]

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Minimum Payments Under Purchase Commitments and Non-Cancellable Operating Leases

As of December 31, 2018, we had committed to make the following minimum payments under our purchase commitments and non-cancellable operating leases:


	Purchase		Operating
	Commitments		Leases
2019	$	389	$	56
2020		339		46
2021		130		36
2022		22		29
2023		15		18
Thereafter		15		39

Restructuring Charges/Other (Tables)

12 Months Ended

Dec. 31, 2018

Restructuring And Related Activities [Abstract]

Schedule of Restructuring Charges and Other Included in Other for Segment Reporting Purposes

Restructuring charges/other are included in Other for segment reporting purposes and are comprised of the following components:

	For Years Ended December 31,
	2018			2017		2016
Restructuring charges (a)	$	6		$	11	$	25
Gains on sales of assets		(3	)		—		(40	)
Restructuring charges/other	$	3		$	11	$	(15	)

(a)	Includes severance and benefits, accelerated depreciation, changes in estimates or other exit costs.

Changes in Accrued Restructuring Balances

Changes in accrued restructuring balances

	2018			2017			2016
Balance, January 1	$	29		$	40		$	32
Restructuring charges		6			11			25
Non-cash items (a)		(3	)		(1	)		(6	)
Payments		(4	)		(21	)		(11	)
Balance, December 31	$	28		$	29		$	40

(a)	Reflects charges for impacts of accelerated depreciation and changes in exchange rates.

Supplemental financial information (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure Text Block Supplement [Abstract]

Other income (expense), net (OI&E)

	For Years Ended December 31,
	2018			2017			2016
Other income (a)	$	150		$	163		$	219
Other expense (b)		(52	)		(88	)		(64	)
Total	$	98		$	75		$	155

(a)	Other income includes interest, royalty and lease income; investment gains and losses; and other miscellaneous items. As of January 1, 2017, royalties are recorded in OI&E instead of revenue.

(b)	Other expense includes a portion of pension and other retiree benefit costs. It also includes currency gains and losses and tax interest expense.

Prepaid expenses and other current assets

	December 31,
	2018		2017
Prepaid taxes on intercompany inventory profits, net	$	132	$	768
Other		308		262
Total	$	440	$	1,030

Property, plant and equipment at cost

	Depreciable	December 31,
	Lives (Years)	2018		2017
Land	n/a	$	128	$	127
Buildings and improvements	5 - 40		2,497		2,467
Machinery and equipment	2 - 10		2,800		2,195
Total		$	5,425	$	4,789

Other long-term liabilities

	December 31,
	2018		2017
Long-term portion of tax on indefinitely reinvested earnings	$	506	$	635
Other		684		668
Total	$	1,190	$	1,303

Accumulated other comprehensive income (loss), net of taxes (AOCI)

	December 31,
	2018			2017
Postretirement benefit plans (a):
Net actuarial loss	$	(473	)	$	(394	)
Prior service credit		2			10
Cash flow hedge derivative instruments		(2	)		—
Total	$	(473	)	$	(384	)

(a)	Includes $30 million for the adoption of ASU 2018-02. See Note 2 for additional information.

Amounts reclassified out of accumulated other comprehensive income (loss), net of taxes, to net income

The table below details where these transactions are recorded in our Consolidated Statements of Income.

	For Years Ended									Impact to
	December 31,									Related Statement
	2018			2017			2016			of Income Lines
Net actuarial losses of defined benefit plans:
Recognized net actuarial loss and settlement losses (a)	$	65		$	83		$	76		Decrease to OI&E
Tax effect		(15	)		(27	)		(25	)	Decrease to provision for income taxes
Recognized within net income, net of taxes	$	50		$	56		$	51		Decrease to net income

Prior service credit of defined benefit plans:
Amortization of prior service credit (a)	$	(4	)	$	(6	)	$	(5	)	Increase to OI&E
Tax effect		1			1			2		Increase to provision for income taxes
Recognized within net income, net of taxes	$	(3	)	$	(5	)	$	(3	)	Increase to net income

Derivative instruments:
Amortization of treasury-rate locks	$	—		$	1		$	1		Increase to interest and debt expense
Tax effect		—			—			—		Decrease to provision for income taxes
Recognized within net income, net of taxes	$	—		$	1		$	1		Decrease to net income

(a)	Detailed in Note 9.

Quarterly financial data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial data

	2018 Quarters									2017 Quarters
	4th			3rd		2nd		1st		4th		3rd		2nd		1st
Revenue	$	3,717		$	4,261	$	4,017	$	3,789	$	3,750	$	4,116	$	3,693	$	3,402
Gross profit		2,407			2,804		2,619		2,447		2,440		2,656		2,374		2,144
Included in operating profit:
Acquisition charges		79			80		79		80		79		80		79		80
Restructuring charges/other		(2	)		1		3		1		3		1		3		4
Operating profit		1,516			1,937		1,712		1,548		1,563		1,788		1,480		1,252
Net income		1,239			1,570		1,405		1,366		344		1,285		1,056		997

Basic EPS	$	1.29		$	1.61	$	1.43	$	1.38	$	0.35	$	1.29	$	1.05	$	0.99
Diluted EPS	$	1.27		$	1.58	$	1.40	$	1.35	$	0.34	$	1.26	$	1.03	$	0.97

Description of Business, Including Segment and Geographic Area Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2018 Reportable_Segments
Segment Reporting [Abstract]
Number of reportable segments	2

Description of Business, Including Segment and Geographic Area Information - Schedule of Revenue and Operating Profit by Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 3,717	$ 4,261	$ 4,017	$ 3,789	$ 3,750	$ 4,116	$ 3,693	$ 3,402	$ 15,784	$ 14,961	$ 13,370
Operating profit	$ 1,516	$ 1,937	$ 1,712	$ 1,548	$ 1,563	$ 1,788	$ 1,480	$ 1,252	6,713	6,083	4,855
Analog
Segment Reporting Information [Line Items]
Revenue									10,801	9,900	8,536
Operating profit									5,109	4,468	3,416
Embedded Processing
Segment Reporting Information [Line Items]
Revenue									3,554	3,498	3,023
Operating profit									1,205	1,143	817
Other
Segment Reporting Information [Line Items]
Revenue									1,429	1,563	1,811
Operating profit									$ 399	$ 472	$ 622

Description of Business, Including Segment and Geographic Area Information - Schedule of Revenue by Geographic Area (Details) - USD ($)
$ in Millions

3 Months Ended

12 Months Ended

Dec. 31, 2018

Sep. 30, 2018

Jun. 30, 2018

Mar. 31, 2018

Dec. 31, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

$ 3,717

$ 4,261

$ 4,017

$ 3,789

$ 3,750

$ 4,116

$ 3,693

$ 3,402

$ 15,784

$ 14,961

$ 13,370

United States

2,288

1,901

1,682

Asia

Europe, Middle East And Africa

^[1]

9,240

8,824

8,024

3,047

2,907

2,393

Japan

869

1,049

1,040

Rest of world

$ 340

$ 280

$ 231

[1]	Revenue from products shipped into China was $7.0 billion, $6.6 billion and $6.0 billion in 2018, 2017 and 2016, respectively

Description of Business, Including Segment and Geographic Area Information - Schedule of Revenue by Geographic Area (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 3,717	$ 4,261	$ 4,017	$ 3,789	$ 3,750	$ 4,116	$ 3,693	$ 3,402	$ 15,784	$ 14,961	$ 13,370
China
Segment Reporting Information [Line Items]
Revenue									$ 7,000	$ 6,600	$ 6,000

Description of Business, Including Segment and Geographic Area Information - Schedule of Property, Plant and Equipment by Geographic Area (Details) - USD ($)
$ in Millions

Dec. 31, 2018

Dec. 31, 2017

$ 3,183

$ 2,664

United States

1,812

1,469

Asia

Europe, Middle East And Africa

^[1]

1,116

964

Japan

157

118

Rest of world

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

$ 14

$ 16

[1]	Property, plant and equipment at our two sites in the Philippines was $437 million as of December 31, 2018 and 2017. Property, plant and equipment at our sites in China was $313 million and $236 million as of December 31, 2018 and 2017, respectively.

Description of Business, Including Segment and Geographic Area Information - Schedule of Property, Plant and Equipment by Geographic Area (Parenthetical) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 3,183	$ 2,664
Philippines
Segment Reporting Information [Line Items]
Property, plant and equipment	437	437
China
Segment Reporting Information [Line Items]
Property, plant and equipment	$ 313	$ 236

Basis of Presentation and Significant Accounting Policies and Practices - Additional Information (Details) - USD ($) shares in Millions, $ in Millions		12 Months Ended
	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Advertising expense		$ 34	$ 39	$ 44
Antidilutive securities excluded from computation of earnings per share, Amount (in shares)		4	6	0
Maximum length to maturity of a security, from the investment date, where it is classified as cash and cash equivalent		90 days
Length to maturity from the investment date of a security where the length of time is too short to be classified as a short-term investment		90 days
Consigned inventory		$ 314	$ 303
Subsequent Event
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Increase in right-of-use asset and liabilities percentage	2.00%
AOCI
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cumulative effect of accounting changes		$ (30)
ASU 2014-09 \| Cumulative Impact of Adopting ASC 606
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Cumulative effect of accounting changes					$ 206
Contract asset					283
Deferred tax liabilities					$ 55

Basis of Presentation and Significant Accounting Policies and Practices - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Basic EPS:
Net income	$ 1,239	$ 1,570	$ 1,405	$ 1,366	$ 344	$ 1,285	$ 1,056	$ 997	$ 5,580	$ 3,682	$ 3,595
Income allocated to RSUs									(43)	(34)	(45)
Income allocated to common stock for basic EPS									$ 5,537	$ 3,648	$ 3,550
Weighted average number of shares outstanding, basic (in shares)									970	991	1,003
Basic earnings per common share	$ 1.29	$ 1.61	$ 1.43	$ 1.38	$ 0.35	$ 1.29	$ 1.05	$ 0.99	$ 5.71	$ 3.68	$ 3.54
Dilutive effect of stock compensation plans									20	21	18
Diluted EPS:
Net income	$ 1,239	$ 1,570	$ 1,405	$ 1,366	$ 344	$ 1,285	$ 1,056	$ 997	$ 5,580	$ 3,682	$ 3,595
Income allocated to RSUs									(42)	(33)	(44)
Income allocated to common stock for diluted EPS									$ 5,538	$ 3,649	$ 3,551
Weighted average number of shares outstanding, diluted (in shares)									990	1,012	1,021
Diluted earnings per common share	$ 1.27	$ 1.58	$ 1.40	$ 1.35	$ 0.34	$ 1.26	$ 1.03	$ 0.97	$ 5.59	$ 3.61	$ 3.48

Stock Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Jan. 02, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of shares remaining available for future issuance		50,167,414
Future compensation not yet recognized in the Statements of Income		$ 224
Future compensation to be recognized in 2019		110
Future compensation to be recognized in 2020		72
Future compensation to be recognized in 2021		37
Future compensation to be recognized in 2022		5
Remaining stock repurchase authorizations		$ 16,140
Employee stock purchase plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Percent of the underlying common stock's market price participants pay for options (in hundredths)		85.00%
ESPP option term (in months)		three-month
Number of shares remaining available for future issuance		34,555,101
Aggregate intrinsic values of options exercised		$ 13	$ 13	$ 12
Weighted-average exercise price, Exercised (in dollars per share)		$ 90.06
Outstanding options exercisable (in shares)		0
Weighted average grant date fair value of options granted (dollars per share)		$ 15.43	$ 12.99	$ 9.79
Employee stock purchase plan \| Subsequent Event
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Weighted-average exercise price, Exercised (in dollars per share)	$ 80.29
Employee Stock Option
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Look back period to determine option life used in Black Scholes Merton pricing model		10 years
Long-term incentive and director compensation plans \| Employee Stock Option
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Term of the long term incentive stock options		10 years
Award vesting period (in years)		4 years
Aggregate intrinsic values of options exercised		$ 561	$ 632	$ 424
Future compensation not yet recognized in the Statements of Income		$ 97
Weighted-average exercise price, Exercised (in dollars per share)		$ 42.63
Outstanding options exercisable (in shares)		23,625,802
Long-term incentive and director compensation plans \| Restricted Stock Units (RSUs)
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Award vesting period (in years)		4 years
Long-term incentive plan RSU conversion to common stock feature		Each RSU represents the right to receive one share of TI common stock on the vesting date
Weighted-average grant-date fair value, Granted (in dollars per share)		$ 110.05	$ 79.52	$ 53.98
Total fair values of shares vested from RSU lapses		$ 123	$ 149	$ 178
Future compensation not yet recognized in the Statements of Income		$ 127

Stock Compensation - Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 232	$ 242	$ 252
COR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	25	36	40
R&D
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	69	59	60
SG&A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 138	$ 147	$ 152

Stock Compensation - Fair-value Methods and Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Fair value assumptions method used for non-qualified stock options	Black-Scholes-Merton option-pricing model
Weighted average grant date fair value, per share (in dollars per share)	$ 23.20	$ 16.49	$ 10.03
Expected volatility (in percent)	23.00%	24.00%	25.00%
Expected lives	7 years 2 months 12 days	7 years 2 months 12 days	7 years 3 months 18 days
Risk-free interest rates (in percent)	2.57%	2.36%	1.72%
Expected dividend yields (in percent)	2.25%	2.52%	2.87%

Stock Compensation - Stock Options and RSUs Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Employee Stock Option
Stock Options, Shares
Exercised (in shares)	(8,432,458)	(13,313,019)	(14,516,606)
Employee Stock Option \| Long-term incentive and director compensation plans
Stock Options, Shares
Options outstanding, Beginning balance (in shares)	44,754,593
Granted (in shares)	4,617,486
Exercised (in shares)	(8,432,458)
Forfeited and expired (in shares)	(1,034,167)
Options outstanding, Ending balance (in shares)	39,905,454	44,754,593
Stock Options, Weighted Average Exercise Price per Share
Weighted-average exercise price, Outstanding, Beginning of period (in dollars per share)	$ 48.49
Weighted-average exercise price, Granted (in dollars per share)	110.07
Weighted-average exercise price, Exercised (in dollars per share)	42.63
Weighted-average exercise price, Forfeited and expired (in dollars per share)	77.30
Weighted-average exercise price, Outstanding, End of period (in dollars per share)	$ 56.10	$ 48.49
Restricted Stock Units (RSUs)
Restricted Stock Units, Shares
Vested (in shares)	(2,769,994)	(4,419,464)	(5,639,666)
Restricted Stock Units (RSUs) \| Long-term incentive and director compensation plans
Restricted Stock Units, Shares
Awards outstanding other than options, Beginning balance (in shares)	9,225,643
Granted (in shares)	1,247,239
Vested (in shares)	(2,769,994)
Forfeited and expired (in shares)	(397,345)
Awards outstanding other than options, Ending balance (in shares)	7,305,543	9,225,643
Restricted Stock Units, Weighted Average Grant Date Fair Value per Share
Weighted-average grant date fair value, Beginning of period (in dollars per share)	$ 55.40
Weighted-average grant-date fair value, Granted (in dollars per share)	110.05	$ 79.52	$ 53.98
Weighted-average grant date fair value, Vested (in dollars per share)	44.50
Weighted-average grant date fair value, Forfeited and expired (in dollars per share)	70.34
Weighted-average grant date fair value, Ending of period (in dollars per share)	$ 66.72	$ 55.40

Stock Compensation - Exercise Price Range (Details) - Employee Stock Option - Long-term incentive and director compensation plans - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	$ 14.47
Exercise Price Range, Maximum	$ 113.30
Number Outstanding (Shares)	39,905,454	44,754,593
Weighted Average Remaining Contractual Life (Years)	5 years 10 months 24 days
Options Outstanding Weighted Average Exercise Price per Share	$ 56.10	$ 48.49
Number Exercisable (Shares)	23,625,802
Options Exercisable Weighted Average Exercise Price per Share	$ 42.76
Range Of Exercise Prices $14.47 to $20.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	14.47
Exercise Price Range, Maximum	$ 20.00
Number Outstanding (Shares)	573,629
Weighted Average Remaining Contractual Life (Years)	1 month 6 days
Options Outstanding Weighted Average Exercise Price per Share	$ 14.96
Number Exercisable (Shares)	573,629
Options Exercisable Weighted Average Exercise Price per Share	$ 14.96
Range Of Exercise Prices $20.01 to $40.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	20.01
Exercise Price Range, Maximum	$ 40.00
Number Outstanding (Shares)	9,508,056
Weighted Average Remaining Contractual Life (Years)	2 years 10 months 24 days
Options Outstanding Weighted Average Exercise Price per Share	$ 31.21
Number Exercisable (Shares)	9,508,056
Options Exercisable Weighted Average Exercise Price per Share	$ 31.21
Range Of Exercise Prices $40.01 to $60.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	40.01
Exercise Price Range, Maximum	$ 60.00
Number Outstanding (Shares)	19,883,804
Weighted Average Remaining Contractual Life (Years)	6 years 2 months 12 days
Options Outstanding Weighted Average Exercise Price per Share	$ 50.95
Number Exercisable (Shares)	12,397,285
Options Exercisable Weighted Average Exercise Price per Share	$ 49.53
Range Of Exercise Prices $60.01 to $80.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	60.01
Exercise Price Range, Maximum	$ 80.00
Number Outstanding (Shares)	5,612,386
Weighted Average Remaining Contractual Life (Years)	8 years 1 month 6 days
Options Outstanding Weighted Average Exercise Price per Share	$ 79.21
Number Exercisable (Shares)	1,143,118
Options Exercisable Weighted Average Exercise Price per Share	$ 79.20
Range Of Exercise Prices $80.01 to $100.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	80.01
Exercise Price Range, Maximum	$ 100.00
Number Outstanding (Shares)	37,917
Weighted Average Remaining Contractual Life (Years)	9 years 3 months 18 days
Options Outstanding Weighted Average Exercise Price per Share	$ 91.16
Number Exercisable (Shares)	3,714
Options Exercisable Weighted Average Exercise Price per Share	$ 91.54
Range Of Exercise Prices $100.01 to $113.30
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Minimum	100.01
Exercise Price Range, Maximum	$ 113.30
Number Outstanding (Shares)	4,289,662
Weighted Average Remaining Contractual Life (Years)	9 years 1 month 6 days
Options Outstanding Weighted Average Exercise Price per Share	$ 110.15
Number Exercisable (Shares)	0
Options Exercisable Weighted Average Exercise Price per Share	$ 0

Stock Compensation - Options Vested and Expected to Vest (Details) - Long-term incentive and director compensation plans - Employee Stock Option
$ / shares in Units, $ in Millions

12 Months Ended

Dec. 31, 2018

USD ($)

$ / shares

Number of outstanding shares, vested and expected to vest (in shares) | shares

39,274,492

^[1]

Weighted average remaining contractual life, vested and expected to vest (in years)

5 years 10 months 24 days

^[1]

Weighted average exercise price per share, vested and expected to vest (in dollars per share) | $ / shares

$ 55.60

^[1]

Intrinsic value, vested and expected to vest (millions of dollars) | $

$ 1,591

^[1]

Outstanding options exercisable (in shares) | shares

23,625,802

Weighted average remaining contractual life, options exercisable

4 years 8 months 12 days

Weighted average exercise price per share, options exercisable (in dollars per share) | $ / shares

$ 42.76

Intrinsic value, options exercisable (millions of dollars) | $

$ 1,222

[1]	Includes effects of expected forfeitures of approximately 1 million shares. Excluding the effects of expected forfeitures, the aggregate intrinsic value of stock options outstanding was $1.60 billion.

Stock Compensation - Options Vested and Expected to Vest (Parenthetical) (Details) - Long-term incentive and director compensation plans - Employee Stock Option shares in Millions, $ in Millions	Dec. 31, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected forfeitures, effects of which are included (in shares) \| shares	1
Aggregate intrinsic value of stock options outstanding, excluding the effects of expected forfeitures \| $	$ 1,600

Stock Compensation - ESPP (Details) - Employee stock purchase plan	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, Beginning balance (in shares) \| shares	202,179
Granted (in shares) \| shares	847,535
Exercised (in shares) \| shares	(819,878)
Options outstanding, Ending balance (in shares) \| shares	229,836
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-average exercise price, Outstanding, Beginning of period (in dollars per share) \| $ / shares	$ 89.74
Weighted-average exercise price, Granted (in dollars per share) \| $ / shares	87.48
Weighted-average exercise price, Exercised (in dollars per share) \| $ / shares	90.06
Weighted-average exercise price, Outstanding, End of period (in dollars per share) \| $ / shares	$ 80.29

Stock Compensation - Effect on Shares Outstanding and Treasury Shares (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Changes in Treasury Stock [Line Items]
Treasury stock (in shares)	795,665,646	757,657,217	744,831,978	729,547,527
Repurchases	49,482,220	30,570,129	35,480,036
Total issued (in shares)	(11,468,610)	(17,740,140)	(20,181,998)
Director
Schedule of Changes in Treasury Stock [Line Items]
Director deferred stock units issued (in shares)	(5,181)	(4,750)	(13,587)
Employee Stock Option
Schedule of Changes in Treasury Stock [Line Items]
Exercised (in shares)	(8,432,458)	(13,313,019)	(14,516,606)
Stock applied to taxes	0	0	0
Total issued (in shares)	(9,252,336)	(14,378,776)	(15,878,808)
Employee Stock Option \| Director
Schedule of Changes in Treasury Stock [Line Items]
Director deferred stock units issued (in shares)	0	0	0
Restricted Stock Units (RSUs)
Schedule of Changes in Treasury Stock [Line Items]
Vested RSUs (in shares)	(2,769,994)	(4,419,464)	(5,639,666)
Stock applied to taxes	553,720	1,058,100	1,336,476
Total issued (in shares)	(2,216,274)	(3,361,364)	(4,303,190)
Restricted Stock Units (RSUs) \| Director
Schedule of Changes in Treasury Stock [Line Items]
Director deferred stock units issued (in shares)	0	0	0
Employee stock purchase plan
Schedule of Changes in Treasury Stock [Line Items]
Exercised (in shares)	(819,878)
Employee stock purchase plan \| Employee Stock Option
Schedule of Changes in Treasury Stock [Line Items]
Exercised (in shares)	(819,878)	(1,065,757)	(1,362,202)
Employee stock purchase plan \| Restricted Stock Units (RSUs)
Schedule of Changes in Treasury Stock [Line Items]
Vested RSUs (in shares)	0	0	0

Stock Compensation - Effects on Cash Flows (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Proceeds from common stock transactions

^[1]

$ 373

$ 483

$ 472

Tax benefit realized from stock compensation

179

341

255

Reduction to deferred tax asset

(43)

(91)

(105)

Excess tax benefit for stock compensation

$ 136

$ 250

$ 150

[1]	Net of taxes paid for employee shares withheld of $60 million, $83 million and $70 million in 2018, 2017 and 2016, respectively.

Stock Compensation - Effects on Cash Flows (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Taxes paid for employee shares withheld	$ 60	$ 83	$ 70

Profit Sharing Plans - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Profit Sharing Plans [Abstract]
Minimum percentage amount of operating margin the company must attain for full calendar year for any profit sharing per individual to be paid (in hundredths)	10.00%
Amount of gross compensation eligible for profit sharing deferral per individual in calendar year when minimum operating margin is attained by company (in hundredths)	2.00%
Maximum amount of gross compensation eligible for profit sharing per individual in calendar year when 35% operating margin is attained by company (in hundredths)	20.00%
Percentage of operating margin the company must attain for full calendar year for maximum amount of profit sharing per individual to be paid (in hundredths)	35.00%
Profit sharing expense	$ 354	$ 355	$ 346

Income taxes - Income before income taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income before income taxes - U.S.	$ 5,672	$ 5,130	$ 3,953
Income before income taxes - Non-U.S.	1,014	950	977
Income before income taxes	$ 6,686	$ 6,080	$ 4,930

Income taxes - Provision for income taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
U.S. federal - Current	$ 979	$ 2,101	$ 1,289
Non-U.S. - Current	225	173	238
U.S. state - Current	7	12	10
Total current income tax expense (benefit)	1,211	2,286	1,537
U.S. federal - Deferred	(98)	51	(122)
Non-U.S. - Deferred	(8)	61	(80)
U.S. state - Deferred	1	0	0
Total deferred income tax expense (benefit)	(105)	112	(202)
Total U.S. federal income taxes	881	2,152	1,167
Total Non-U.S. income taxes	217	234	158
Total U.S. state income taxes	8	12	10
Provision for income taxes	$ 1,106	$ 2,398	$ 1,335

Income taxes - Reconciliation items from U.S. statutory income tax rate to the effective tax rate (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
U.S. statutory income tax rate	21.00%	35.00%	35.00%
U.S. tax benefit for foreign derived intangible income	(5.30%)	(0.00%)	(0.00%)
U.S. Tax Act transitional non-cash expense	4.20%	0.00%	0.00%
U.S. Tax Act enactment-date effects and measurement period adjustments	(0.70%)	12.70%	(0.00%)
U.S. tax on global intangible low-taxed income	0.40%	0.00%	0.00%
U.S. tax benefit for manufacturing	(0.00%)	(1.60%)	(1.50%)
U.S. excess tax benefit for stock compensation	(2.00%)	(4.10%)	(3.00%)
U.S. R&D tax credit	(1.30%)	(1.10%)	(1.20%)
U.S. non-deductible expenses	0.20%	0.20%	0.30%
Non-U.S. effective tax rates	0.10%	(2.50%)	(3.70%)
Impact of changes to uncertain tax positions	0.00%	0.70%	0.60%
Other	(0.10%)	0.10%	0.60%
Effective tax rate	16.50%	39.40%	27.10%

Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Line Items]
U.S. statutory income tax rate	21.00%	35.00%	35.00%
Provisional Tax Act tax expense		$ 773,000,000
Reduction in provisional amount	$ (44,000,000)
Additional tax expense	729,000,000
Unrecognized deferred tax liabilities	0
Increase in valuation allowance balances	7,000,000	37,000,000
Net income impacted due to change in valuation allowances	0	0
Tax loss carryforward, U.S. and non-U.S.	6,000,000
Tax loss carryforward, U.S. and non-U.S., set to expire	0
Cash payments for income taxes	705,000,000	1,800,000,000	$ 1,150,000,000
liabilities for uncertain tax positions	286,000,000	300,000,000	$ 243,000,000	$ 84,000,000
Amount of deferred tax assets possibly to be realized	30,000,000	$ 13,000,000
Maximum
Income Tax Disclosure [Line Items]
Decrease in liabilities for uncertain tax positions	$ 223,000,000

Income taxes - Components of deferred tax assets and liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Deferred loss and tax credit carryforwards	$ 247	$ 256
Accrued expenses	129	119
Stock compensation	122	107
Inventories and related reserves	107	93
Retirement costs for defined benefit and retiree health care	80	38
Other	0	9
Total deferred tax assets, before valuation allowance	685	622
Valuation allowance	(172)	(165)
Total deferred tax assets, after valuation allowance	513	457
Deferred tax liabilities:
Acquisition-related intangibles and fair-value adjustments	(142)	(207)
International earnings	(43)	(64)
Other	(75)	0
Total deferred tax liabilities	(260)	(271)
Net deferred tax asset	$ 253	$ 186

Income taxes - Deferred tax assets and liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Deferred tax assets	$ 295	$ 264
Deferred tax liabilities	(42)	(78)
Net deferred tax asset	$ 253	$ 186

Income taxes - Uncertain tax positions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, January 1	$ 300	$ 243	$ 84
Additions based on tax positions related to the current year	3	17	4
Additions for tax positions of prior years	1	42	189
Reductions for tax positions of prior years	0	(1)	(2)
Settlements with tax authorities	(18)	(1)	(32)
Balance, December 31	286	300	243
Interest income (expense) recognized in the year ended December 31	(15)	(19)	4
Interest receivable (payable) as of December 31	$ (49)	$ (38)	$ 13

Financial Instruments and Risk Concentration - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) Customer	Dec. 31, 2017 Customer	Dec. 31, 2016 Customer
Customer Concentration Risk \| Sales Revenue, Segment
Valuation and Qualifying Accounts Disclosure [Line Items]
Customer accounted for 10% or more of revenue \| Customer	0	0	0
Foreign Exchange Forward
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	$ 525
Foreign Exchange Forward \| Japanese Yen
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	160
Foreign Exchange Forward \| Indian Rupees
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	94
Foreign Exchange Forward \| Euros
Valuation and Qualifying Accounts Disclosure [Line Items]
Notional value of forward foreign currency exchange contracts	$ 99

Financial Instruments and Risk Concentration - Schedule of Accounts Receivable Allowances (Details) - Allowance for Credit Loss - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ 8	$ 17	$ 7
Amounts charged (credited) to operating results	11	(9)	10
Recoveries and write-offs, net	0	0	0
Balance at end of year	$ 19	$ 8	$ 17

Valuation of Debt and Equity Investments and Certain Liabilities - Investments at Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 2,438	$ 1,656
Short-term investments	1,795	2,813
Long-term investments	251	268
Measured at fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	2,208	1,397
Short-term investments	1,795	2,813
Long-term investments	226	236
Measured at fair value \| Available-for-sale debt securities \| Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	747	525
Short-term investments	0	0
Long-term investments	0	0
Measured at fair value \| Available-for-sale debt securities \| Corporate obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	473	172
Short-term investments	748	698
Long-term investments	0	0
Measured at fair value \| Available-for-sale debt securities \| U.S. government agency and Treasury securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	988	700
Short-term investments	1,047	2,115
Long-term investments	0	0
Measured at fair value \| Trading securities \| Mutual funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Short-term investments	0	0
Long-term investments	226	236
Other measurement basis \| Equity-method investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Short-term investments	0	0
Long-term investments	21	26
Other measurement basis \| Non-marketable equity investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Short-term investments	0	0
Long-term investments	4	6
Other measurement basis \| Cash on hand
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	230	259
Short-term investments	0	0
Long-term investments	$ 0	$ 0

Valuation of Debt and Equity Investments and Certain Liabilities - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Credit losses related to available-for-sale investments	$ 0	$ 0	$ 0
Proceeds from sales, redemptions and maturities of short-term available-for-sale securities	6,708,000,000	4,095,000,000	$ 3,390,000,000
Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets fair value	4,229,000,000	4,446,000,000
Total liabilities fair value	246,000,000	255,000,000
Fair Value, Measurements, Recurring \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets fair value	0	0
Total liabilities fair value	$ 0	$ 0

Valuation of Debt and Equity Investments and Certain Liabilities - Aggregate Maturities of Available-for-sale Debt Investments (Details) $ in Millions	Dec. 31, 2018 USD ($)
Fair Value Disclosures [Abstract]
One year or less	$ 3,838
One to two years	$ 165

Valuation of Debt and Equity Investments and Certain Liabilities - Fair Value Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	$ 4,229	$ 4,446
Liabilities, fair value	246	255
Deferred compensation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value	246	255
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	3,008	3,526
Liabilities, fair value	246	255
Level 1 \| Deferred compensation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value	246	255
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,221	920
Liabilities, fair value	0	0
Level 2 \| Deferred compensation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value	0	0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	747	525
Money market funds \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	747	525
Money market funds \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	0
Corporate obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,221	870
Corporate obligations \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	0
Corporate obligations \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	1,221	870
U.S. government agency and Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	2,035	2,815
U.S. government agency and Treasury securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	2,035	2,765
U.S. government agency and Treasury securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	50
Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	226	236
Mutual funds \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	226	236
Mutual funds \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	$ 0	$ 0

Goodwill and Acquisition-Related Intangibles - Goodwill (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill	$ 4,362	$ 4,362
Analog
Goodwill [Line Items]
Goodwill	4,158	4,158
Embedded Processing
Goodwill [Line Items]
Goodwill	172	172
Other
Goodwill [Line Items]
Goodwill	$ 32	$ 32

Goodwill and Acquisition-Related Intangibles - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill impairment loss	$ 0	$ 0	$ 0
Amortization of acquisition-related intangibles	$ 318,000,000	$ 318,000,000	$ 319,000,000

Goodwill and Acquisition-Related Intangibles - Components of Acquisition Related Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Acquired Finite Lived Intangible Assets [Line Items]
Acquisition-related intangibles, gross carrying amount	$ 2,935	$ 2,940
Acquisition-related intangibles, accumulated amortization	2,307	1,994
Acquisition-related intangibles, net	628	946
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2019	288
2020	198
2021	142
Developed technology
Acquired Finite Lived Intangible Assets [Line Items]
Acquisition-related intangibles, gross carrying amount	2,125	2,130
Acquisition-related intangibles, accumulated amortization	1,573	1,361
Acquisition-related intangibles, net	$ 552	769
Developed technology \| Minimum
Acquired Finite Lived Intangible Assets [Line Items]
Acquisition-related intangibles, amortization period	7 years
Developed technology \| Maximum
Acquired Finite Lived Intangible Assets [Line Items]
Acquisition-related intangibles, amortization period	10 years
Customer relationships
Acquired Finite Lived Intangible Assets [Line Items]
Acquisition-related intangibles, amortization period	8 years
Acquisition-related intangibles, gross carrying amount	$ 810	810
Acquisition-related intangibles, accumulated amortization	734	633
Acquisition-related intangibles, net	$ 76	$ 177

Postretirement Benefit Plans - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Description of defined contribution plans	Both defined contribution plans offer an employer-matching savings option that allows employees to make pre-tax and post-tax contributions to various investment choices. Employees who elected to continue accruing a benefit in the qualified defined benefit pension plans may also participate in the defined contribution plan, where employer-matching contributions are provided for up to 2 percent of the employee’s annual eligible earnings. Employees who elected not to continue accruing a benefit in the defined benefit pension plans, and employees hired after November 1997 and through December 31, 2003, may participate in the enhanced defined contribution plan. This plan provides for a fixed employer contribution of 2 percent of the employee’s annual eligible earnings, plus an employer-matching contribution of up to 4 percent of the employee’s annual eligible earnings. Employees hired after December 31, 2003, do not receive the fixed employer contribution of 2 percent of the employee’s annual eligible earnings.
Defined benefit pension plan formula, highest consecutive years of compensation (in years)	5 years
Value of the company shares held by the non-U.S. retirement plans at year-end	$ 23,000,000	$ 27,000,000
Length of time certain gains and losses are considered when determining the market-related value of assets related to the U.S. Qualified pension and retiree health care plans (in years)	3 years
Expected contribution to retirement benefit plans in next fiscal year	$ 50,000,000
Defined benefit plan assets directly invested in TI common stock	0
Effect of a one-percentage point change in assumed health care cost trend rates [Abstract]
Liability to participants of the deferred compensation plan	$ 246,000,000
Deferred compensation plan assets	$ 226,000,000
U.S.
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of company shares held by the U.S. defined contribution plans at year-end (in shares)	9,000,000	10,000,000
Value of the company shares held by the U.S. defined contribution plans at year-end	$ 821,000,000	$ 1,000,000,000
Dividends paid on the company shares held by the U.S. defined contribution plans at year-end	24,000,000	22,000,000
Aggregate expense for the U.S. defined contribution plans	61,000,000	61,000,000	$ 60,000,000
U.S. \| Defined benefit plan
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation	793,000,000	899,000,000
Future amortization of net actuarial loss	10,000,000
Future amortization of unrecognized prior service cost (credit)	0
U.S. \| Retiree health care plan
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Future amortization of net actuarial loss	0
Future amortization of unrecognized prior service cost (credit)	(2,000,000)
Effect of a one-percentage point change in assumed health care cost trend rates [Abstract]
Effect of a one percentage point increase on accumulated postretirement benefit obligation (in hundredths)	1,000,000
Effect of a one percentage point decrease on accumulated postretirement benefit obligation (in hundredths)	1,000,000
U.S. \| Retiree health care plan \| Maximum
Effect of a one-percentage point change in assumed health care cost trend rates [Abstract]
Effect of a one percentage point increase on service and interest cost components (in hundredths)	1,000,000
Effect of a one percentage point decrease on service and interest cost components (in hundredths)	1,000,000
Non-U.S. \| Defined benefit plan
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation	2,290,000,000	$ 2,330,000,000
Future amortization of net actuarial loss	29,000,000
Future amortization of unrecognized prior service cost (credit)	$ 1,000,000
Defined contribution plan, also still accruing defined benefits
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, employer matching contribution (percent)	2.00%
Enhanced defined contribution plan
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, employer matching contribution (percent)	4.00%
Defined contribution plan, employer fixed contribution (percent)	2.00%
Defined contribution plan
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, employer matching contribution (percent)	4.00%

Postretirement Benefit Plans - Expense Related to Defined Benefit and Retiree Health Care Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
United States \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 19	$ 22	$ 22
Interest cost	35	42	42
Expected return on plan assets	(42)	(41)	(41)
Amortization of prior service credit	0	0	0
Recognized net actuarial loss	17	14	21
Net periodic benefit costs	29	37	44
Settlement losses	23	36	21
Total, including other postretirement losses	52	73	65
United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	5	5
Interest cost	15	17	20
Expected return on plan assets	(15)	(17)	(20)
Amortization of prior service credit	(3)	(4)	(3)
Recognized net actuarial loss	2	3	7
Net periodic benefit costs	4	4	9
Settlement losses	0	0	0
Total, including other postretirement losses	$ 4	$ 4	$ 9
Defined Benefit Plan, Sponsor Location [Extensible List]	country:US	country:US	country:US
Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 36	$ 37	$ 34
Interest cost	45	44	52
Expected return on plan assets	(67)	(62)	(68)
Amortization of prior service credit	(1)	(2)	(2)
Recognized net actuarial loss	20	28	25
Net periodic benefit costs	33	45	41
Settlement losses	3	2	2
Total, including other postretirement losses	$ 36	$ 47	$ 43

Postretirement Benefit Plans - Benefit Obligations and Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Funded status at end of year	$ (37)	$ 101
United States \| Defined benefit plan
Change in plan benefit obligation
Benefit obligation at beginning of year:	998	1,030
Service cost	19	22	$ 22
Interest cost	35	42	42
Participant contributions	0	0
Benefits paid	(10)	(9)
Settlements	(100)	(196)
Actuarial loss (gain)	(68)	109
Plan amendments	0	0
Effects of exchange rate changes	0	0
Benefit obligation at end of year	874	998	1,030
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year:	995	1,034
Actual return on plan assets	(56)	123
Employer contributions (qualified plans)	20	25
Employer contributions (non-qualified plans)	20	18
Participant contributions	0	0
Benefits paid	(10)	(9)
Settlements	(100)	(196)
Effects of exchange rate changes	0	0
Other	0	0
Fair value of plan assets at end of year	869	995	1,034
Funded status at end of year	(5)	(3)
United States \| Retiree health care plan
Change in plan benefit obligation
Benefit obligation at beginning of year:	414	434
Service cost	5	5
Interest cost	15	17
Participant contributions	11	9
Benefits paid	(41)	(39)
Settlements	0	0
Actuarial loss (gain)	(43)	(15)
Plan amendments	0	3
Effects of exchange rate changes	0	0
Benefit obligation at end of year	361	414	434
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year:	394	434
Actual return on plan assets	(12)	44
Employer contributions (qualified plans)	1	1
Employer contributions (non-qualified plans)	0	0
Participant contributions	11	9
Benefits paid	(41)	(39)
Settlements	0	0
Effects of exchange rate changes	0	0
Other	(23)	(55)
Fair value of plan assets at end of year	330	394	434
Funded status at end of year	(31)	(20)
Non-U.S. \| Defined benefit plan
Change in plan benefit obligation
Benefit obligation at beginning of year:	2,469	2,361
Service cost	36	37	34
Interest cost	45	44	52
Participant contributions	7	6
Benefits paid	(87)	(90)
Settlements	(16)	(13)
Actuarial loss (gain)	6	(52)
Plan amendments	7	0
Effects of exchange rate changes	(56)	176
Benefit obligation at end of year	2,411	2,469	2,361
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year:	2,593	2,309
Actual return on plan assets	(52)	148
Employer contributions (qualified plans)	19	56
Employer contributions (non-qualified plans)	0	0
Participant contributions	7	6
Benefits paid	(87)	(90)
Settlements	(16)	(13)
Effects of exchange rate changes	(54)	177
Other	0	0
Fair value of plan assets at end of year	2,410	2,593	$ 2,309
Funded status at end of year	$ (1)	$ 124

Postretirement Benefit Plans - Amounts Recognized on our Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	$ 92	$ 208
Accrued expenses and other liabilities & other long-term liabilities	(11)	(18)
Underfunded retirement plans	(118)	(89)
Funded status at end of year	(37)	101
United States \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	40	58
Accrued expenses and other liabilities & other long-term liabilities	(8)	(13)
Underfunded retirement plans	(37)	(48)
Funded status at end of year	(5)	(3)
United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	0	0
Accrued expenses and other liabilities & other long-term liabilities	0	0
Underfunded retirement plans	(31)	(20)
Funded status at end of year	(31)	(20)
Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Overfunded retirement plans	52	150
Accrued expenses and other liabilities & other long-term liabilities	(3)	(5)
Underfunded retirement plans	(50)	(21)
Funded status at end of year	$ (1)	$ 124

Postretirement Benefit Plans - Schedule of Change in AOCI (Details)
$ in Millions

12 Months Ended

Dec. 31, 2018

USD ($)

Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward

AOCI balance, net actuarial loss portion (net of taxes), beginning of period

$ 394

133

(65)

Cumulative effect of accounting changes, net actuarial loss

(20)

^[1]

AOCI balance, net actuarial loss portion (net of taxes), period end

473

^[2]

Defined benefit plan amounts recognized in other comprehensive income prior service credit portion roll forward

AOCI balance, net prior service credit (net of taxes), beginning of period

(10)

Adjustments, prior service credit

Recognized within net income, prior service credit

Tax effect, prior service credit

(2)

Cumulative effect of accounting changes, prior service credit

(1)

^[1]

Total change to AOCI, prior service credit

AOCI balance, net prior service credit (net of taxes), period end

(2)

^[2]

United States | Defined benefit plan

Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward

AOCI balance, net actuarial loss portion (net of taxes), beginning of period

118

(39)

Cumulative effect of accounting changes, net actuarial loss

^[1]

AOCI balance, net actuarial loss portion (net of taxes), period end

135

United States | Retiree health care plan

Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward

AOCI balance, net actuarial loss portion (net of taxes), beginning of period

(16)

(2)

Cumulative effect of accounting changes, net actuarial loss

^[1]

AOCI balance, net actuarial loss portion (net of taxes), period end

(8)

Defined benefit plan amounts recognized in other comprehensive income prior service credit portion roll forward

AOCI balance, net prior service credit (net of taxes), beginning of period

(6)

Adjustments, prior service credit

Recognized within net income, prior service credit

Tax effect, prior service credit

(1)

Cumulative effect of accounting changes, prior service credit

(1)

^[1]

Total change to AOCI, prior service credit

AOCI balance, net prior service credit (net of taxes), period end

(5)

Non-U.S. | Defined benefit plan

Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward

AOCI balance, net actuarial loss portion (net of taxes), beginning of period

247

120

(24)

Cumulative effect of accounting changes, net actuarial loss

(26)

^[1]

AOCI balance, net actuarial loss portion (net of taxes), period end

317

Defined benefit plan amounts recognized in other comprehensive income prior service credit portion roll forward

AOCI balance, net prior service credit (net of taxes), beginning of period

(4)

Adjustments, prior service credit

Recognized within net income, prior service credit

Tax effect, prior service credit

(1)

Cumulative effect of accounting changes, prior service credit

^[1]

Total change to AOCI, prior service credit

AOCI balance, net prior service credit (net of taxes), period end

$ 3

[1]	Reflects the adoption of ASU 2018-02. See Note 2 for additional information.
[2]	Includes $30 million for the adoption of ASU 2018-02. See Note 2 for additional information.

Postretirement Benefit Plans - Weighted Average Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
United States \| Defined benefit plan
Weighted average assumptions used to determine benefit obligations:
Discount rate (in percent)	4.37%	3.75%
Long-term pay progression (in percent)	3.30%	3.30%
Weighted average assumptions used to determine net periodic benefit cost:
Discount rate (in percent)	3.77%	4.21%
Long term rate of return on plan assets (in percent)	4.80%	4.30%
Long-term pay progression (in percent)	3.30%	3.30%
United States \| Retiree health care plan
Weighted average assumptions used to determine benefit obligations:
Discount rate (in percent)	4.30%	3.63%
Weighted average assumptions used to determine net periodic benefit cost:
Discount rate (in percent)	3.63%	4.08%
Long term rate of return on plan assets (in percent)	4.10%	4.10%
Non-U.S. \| Defined benefit plan
Weighted average assumptions used to determine benefit obligations:
Discount rate (in percent)	1.85%	1.84%
Long-term pay progression (in percent)	2.96%	2.96%
Weighted average assumptions used to determine net periodic benefit cost:
Discount rate (in percent)	1.84%	1.76%
Long term rate of return on plan assets (in percent)	2.58%	2.60%
Long-term pay progression (in percent)	2.96%	3.11%

Postretirement Benefit Plans - Weighted Average Allocations (Details)	Dec. 31, 2018	Dec. 31, 2017
Fixed income securities and cash equivalents \| United States \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	65.00%
Actual plan asset allocation (in percent)	65.00%	66.00%
Fixed income securities and cash equivalents \| United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation (in percent)	65.00%	62.00%
Fixed income securities and cash equivalents \| Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation (in percent)	74.00%	71.00%
Fixed income securities and cash equivalents \| Minimum \| United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	55.00%
Fixed income securities and cash equivalents \| Minimum \| Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	60.00%
Fixed income securities and cash equivalents \| Maximum \| United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	65.00%
Fixed income securities and cash equivalents \| Maximum \| Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	100.00%
Equity securities \| United States \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	35.00%
Actual plan asset allocation (in percent)	35.00%	34.00%
Equity securities \| United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation (in percent)	35.00%	38.00%
Equity securities \| Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation (in percent)	26.00%	29.00%
Equity securities \| Minimum \| United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	35.00%
Equity securities \| Minimum \| Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	0.00%
Equity securities \| Maximum \| United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	45.00%
Equity securities \| Maximum \| Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
Targeted allocation (in percent)	40.00%

Postretirement Benefit Plans - Assumed Future Benefits Payments (Details) $ in Millions	Dec. 31, 2018 USD ($)
United States \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
2019 payment	$ 78
2020 payment	105
2021 payment	77
2022 payment	79
2023 payment	85
2024 - 2028 payment	428
United States \| Retiree health care plan
Defined Benefit Plan Disclosure [Line Items]
2019 payment	32
2020 payment	31
2021 payment	30
2022 payment	29
2023 payment	28
2024 - 2028 payment	124
Non-U.S. \| Defined benefit plan
Defined Benefit Plan Disclosure [Line Items]
2019 payment	88
2020 payment	90
2021 payment	92
2022 payment	95
2023 payment	95
2024 - 2028 payment	$ 510

Postretirement Benefit Plans - Health Care Cost Trend Rates (Details) - U.S. - Retiree health care plan	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Assumed health care cost trend rate for next year (in percent)	7.25%	7.50%
Ultimate trend rate (in percent)	5.00%	5.00%
Year in which ultimate trend rate is reached	2028	2028

Debt and Lines of Credit - Additional Information (Details) - USD ($)	1 Months Ended						3 Months Ended	12 Months Ended
	May 31, 2018	Nov. 30, 2017	Jun. 30, 2017	May 31, 2017	Mar. 31, 2017	May 31, 2016	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Commercial paper								$ 0
Retirement of long-term debt	$ 500,000,000		$ 375,000,000		$ 250,000,000
Long-term debt, gross								5,100,000,000	$ 4,100,000,000
Proceeds from issuance of long-term debt								1,500,000,000	1,099,000,000	$ 499,000,000
Interest and debt expense								125,000,000	78,000,000	80,000,000
Interest paid								114,000,000	75,000,000	$ 88,000,000
Notes payable
Debt Instrument [Line Items]
Retirement of long-term debt						$ 1,000,000,000
Long-term debt, gross				$ 600,000,000
Payments of debt issuance costs				3,000,000
Proceeds from issuance of long-term debt				605,000,000
Notes due 2048 at 4.15%
Debt Instrument [Line Items]
Long-term debt, gross							$ 1,500,000,000	$ 1,500,000,000	$ 0
Payments of debt issuance costs							16,000,000
Proceeds from issuance of long-term debt							1,500,000,000
Long-term debt stated interest rate (in percentage)								4.15%	4.15%
4.15% Notes issued in May 2018
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,300,000,000
4.15% Notes issued in June 2018
Debt Instrument [Line Items]
Long-term debt, gross							$ 200,000,000
Notes due 2021 at 2.75%
Debt Instrument [Line Items]
Long-term debt, gross				$ 300,000,000				$ 550,000,000	$ 550,000,000
Long-term debt stated interest rate (in percentage)				2.75%				2.75%	2.75%
Notes due 2024 at 2.625%
Debt Instrument [Line Items]
Long-term debt, gross				$ 300,000,000				$ 300,000,000	$ 300,000,000
Long-term debt stated interest rate (in percentage)				2.625%				2.625%	2.625%
Notes due 2027 at 2.90%
Debt Instrument [Line Items]
Long-term debt, gross		$ 500,000,000						$ 500,000,000	$ 500,000,000
Payments of debt issuance costs		3,000,000
Proceeds from issuance of long-term debt		$ 494,000,000
Long-term debt stated interest rate (in percentage)								2.90%	2.90%
Notes due 2022 at 1.85%
Debt Instrument [Line Items]
Long-term debt, gross						500,000,000		$ 500,000,000	$ 500,000,000
Payments of debt issuance costs						3,000,000
Proceeds from issuance of long-term debt						$ 499,000,000
Long-term debt stated interest rate (in percentage)								1.85%	1.85%
Revolving credit facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity until March 2023								$ 2,000,000,000

Debt and Lines of Credit - Schedule of Long-term Debt Outstanding (Details) - USD ($) $ in Millions	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017	Nov. 30, 2017	May 31, 2017	May 31, 2016
Debt Instrument [Line Items]
Debt, gross	$ 5,100		$ 4,100
Net unamortized discounts, premiums and issuance costs	(32)		(23)
Total debt, including net unamortized discounts, premiums and issuance costs	5,068		4,077
Current portion of long-term debt	(749)		(500)
Long-term debt	4,319		3,577
Notes due 2018 at 1.00%
Debt Instrument [Line Items]
Debt, gross	0		500
Notes due 2019 at 1.65%
Debt Instrument [Line Items]
Debt, gross	750		750
Notes due 2020 at 1.75%
Debt Instrument [Line Items]
Debt, gross	500		500
Notes due 2021 at 2.75%
Debt Instrument [Line Items]
Debt, gross	550		550		$ 300
Notes due 2022 at 1.85%
Debt Instrument [Line Items]
Debt, gross	500		500			$ 500
Notes due 2023 at 2.25%
Debt Instrument [Line Items]
Debt, gross	500		500
Notes due 2024 at 2.625%
Debt Instrument [Line Items]
Debt, gross	300		300		$ 300
Notes due 2027 at 2.90%
Debt Instrument [Line Items]
Debt, gross	500		500	$ 500
Notes due 2048 at 4.15%
Debt Instrument [Line Items]
Debt, gross	$ 1,500	$ 1,500	$ 0

Debt and Lines of Credit - Schedule of Long-term Debt Outstanding (Parenthetical) (Details)	Dec. 31, 2018	Dec. 31, 2017	May 31, 2017
Notes due 2018 at 1.00%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	1.00%	1.00%
Notes due 2019 at 1.65%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	1.65%	1.65%
Notes due 2020 at 1.75%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	1.75%	1.75%
Notes due 2021 at 2.75%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	2.75%	2.75%	2.75%
Notes due 2022 at 1.85%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	1.85%	1.85%
Notes due 2023 at 2.25%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	2.25%	2.25%
Notes due 2024 at 2.625%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	2.625%	2.625%	2.625%
Notes due 2027 at 2.90%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	2.90%	2.90%
Notes due 2048 at 4.15%
Debt Instrument [Line Items]
Long-term debt stated interest rate (in percentage)	4.15%	4.15%

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Rental and lease expense incurred	$ 79	$ 81	$ 86
Standard product warranty description	obligate us to repair, replace or credit the purchase price of a covered product back to the buyer.

Commitments and Contingencies (Details) $ in Millions	Dec. 31, 2018 USD ($)
Operating Leases
2019	$ 56
2020	46
2021	36
2022	29
2023	18
Thereafter	39
Purchase Commitments
2019	389
2020	339
2021	130
2022	22
2023	15
Thereafter	$ 15

Restructuring Charges/Other - Components of Restructuring Charges and Other Included in Other for Segment Reporting Purposes (Details) - USD ($)
$ in Millions

3 Months Ended

12 Months Ended

Dec. 31, 2018

Sep. 30, 2018

Jun. 30, 2018

Mar. 31, 2018

Dec. 31, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Restructuring And Related Activities [Abstract]

Restructuring charges

^[1]

$ 6

$ 11

$ 25

Gains on sales of assets

(3)

(40)

Restructuring charges/other

$ (2)

$ 1

$ 3

$ 1

$ 3

$ 1

$ 3

$ 4

$ 3

$ 11

$ (15)

[1]	Includes severance and benefits, accelerated depreciation, changes in estimates or other exit costs.

Restructuring Charges/Other - Restructuring Reserve (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Restructuring And Related Activities [Abstract]

Balance, January 1

$ 29

$ 40

$ 32

Restructuring charges

^[1]

Non-cash items

^[2]

(3)

(1)

(6)

Payments

(4)

(21)

(11)

Balance, December 31

$ 28

$ 29

$ 40

[1]	Includes severance and benefits, accelerated depreciation, changes in estimates or other exit costs.
[2]	Reflects charges for impacts of accelerated depreciation and changes in exchange rates.

Supplemental financial information - Other income (expense), net (OI&E) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Supplemental Financial Information [Abstract]

Other income (a)

^[1]

$ 150

$ 163

$ 219

Other expense (b)

^[2]

(52)

(88)

(64)

Total

$ 98

$ 75

$ 155

[1]	Other income includes interest, royalty and lease income; investment gains and losses; and other miscellaneous items. As of January 1, 2017, royalties are recorded in OI&E instead of revenue.
[2]	Other expense includes a portion of pension and other retiree benefit costs. It also includes currency gains and losses and tax interest expense.

Supplemental financial information - Prepaid expenses and other current assets (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Supplemental Financial Information [Abstract]
Prepaid taxes on intercompany inventory profits, net	$ 132	$ 768
Other	308	262
Total	$ 440	$ 1,030

Supplemental financial information - Property, plant and equipment at cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	$ 5,425	$ 4,789
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	128	127
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	$ 2,497	2,467
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	5 years
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	40 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost	$ 2,800	$ 2,195
Machinery and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	2 years
Machinery and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment at cost, depreciable lives	10 years

Supplemental financial information - Other long-term liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Supplemental Financial Information [Abstract]
Long-term portion of tax on indefinitely reinvested earnings	$ 506	$ 635
Other	684	668
Total	$ 1,190	$ 1,303

Supplemental financial information - Accumulated other comprehensive income (loss), net of taxes (AOCI) (Details) - USD ($)
$ in Millions

Dec. 31, 2018

^[1]

Dec. 31, 2017

Supplemental Financial Information [Abstract]

Net actuarial loss

$ (473)

$ (394)

Prior service credit

Cash flow hedge derivative instruments

(2)

Total

$ (473)

$ (384)

[1]	Includes $30 million for the adoption of ASU 2018-02. See Note 2 for additional information.

Supplemental financial information - Accumulated other comprehensive income (loss), net of taxes (AOCI) (Parenthetical) (Details) $ in Millions	Dec. 31, 2018 USD ($)
AOCI
Accumulated Other Comprehensive Income Loss [Line Items]
Cumulative effect of accounting changes	$ 30

Supplemental financial information - Amounts reclassified out of accumulated other comprehensive income (loss), net of taxes, to net income (Details) - Reclassification out of Accumulated Other Comprehensive Income - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Net actuarial losses of defined benefit plans

Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]

Reclassified from other comprehensive income (loss), before tax

^[1]

$ 65

$ 83

$ 76

Tax Effect

(15)

(27)

(25)

Recognized within net income, net of taxes

Prior service credit of defined benefit plans

Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]

Reclassified from other comprehensive income (loss), before tax

^[1]

(4)

(6)

(5)

Tax Effect

Recognized within net income, net of taxes

(3)

(5)

(3)

Derivative instruments

Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]

Reclassified from other comprehensive income (loss), before tax

Tax Effect

Recognized within net income, net of taxes

$ 0

$ 1

[1]	Detailed in Note 9.

Quarterly financial data (unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 3,717	$ 4,261	$ 4,017	$ 3,789	$ 3,750	$ 4,116	$ 3,693	$ 3,402	$ 15,784	$ 14,961	$ 13,370
Gross profit	2,407	2,804	2,619	2,447	2,440	2,656	2,374	2,144	10,277	9,614	8,257
Acquisition charges	79	80	79	80	79	80	79	80	318	318	319
Restructuring charges/other	(2)	1	3	1	3	1	3	4	3	11	(15)
Operating profit	1,516	1,937	1,712	1,548	1,563	1,788	1,480	1,252	6,713	6,083	4,855
Net income	$ 1,239	$ 1,570	$ 1,405	$ 1,366	$ 344	$ 1,285	$ 1,056	$ 997	$ 5,580	$ 3,682	$ 3,595
Basic earnings per common share	$ 1.29	$ 1.61	$ 1.43	$ 1.38	$ 0.35	$ 1.29	$ 1.05	$ 0.99	$ 5.71	$ 3.68	$ 3.54
Diluted earnings per common share	$ 1.27	$ 1.58	$ 1.40	$ 1.35	$ 0.34	$ 1.26	$ 1.03	$ 0.97	$ 5.59	$ 3.61	$ 3.48

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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