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Document And Entity Information - USD ($)	3 Months Ended
Document And Entity Information - USD ($)	Mar. 31, 2011	Jun. 30, 2010
Entity Registrant Name	TEXAS INSTRUMENTS INC
Entity Central Index Key	0000097476
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 27,329,003,249
Entity Common Stock, Shares Outstanding	1,161,168,787
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2011

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
Consolidated Statements of Income - USD ($) $ in Millions	Mar. 31, 2011	Mar. 31, 2010
Consolidated Statements of Income [Abstract]
Revenue	$ 3,392	$ 3,205
Cost of revenue	1,664	1,516
Gross profit	1,728	1,689
Research and development	422	370
Selling, general and administrative	396	359
Restructuring expense	0	10
Acquisition cost	2	0
Operating profit	908	950
Other income (expense) net	10	7
Income before income taxes	918	957
Provision for income taxes	252	299
Net income	$ 666	$ 658
Earnings per common share:
Basic	$ 0.56	$ 0.53
Diluted	$ 0.55	$ 0.52
Average shares outstanding (millions):
Basic	1,167	1,233
Diluted	1,194	1,246
Cash dividends declared per share of common stock	$ 0.13	$ 0.12

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 666	$ 658
Available-for-sale investments:
Unrealized gains, net of taxes	0	1
Net actuarial gains (losses) of defined benefit plans:
Adjustment, net of taxes	(14)	(24)
Reclassification of recognized transactions, net of taxes	12	17
Prior service cost of defined benefit plans:
Adjustment, net of taxes	1	0
Total	(1)	(6)
Total comprehensive income	$ 665	$ 652

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 1,343	$ 1,319
Short-term investments	1,514	1,753
Accounts receivable, net of allowances of ($20) and ($18)	1,568	1,518
Raw materials	132	122
Work in process	934	919
Finished goods	612	479
Inventories	1,678	1,520
Deferred income taxes	771	770
Prepaid expenses and other current assets	170	180
Total current assets	7,044	7,060
Property, plant and equipment at cost	6,712	6,907
Less accumulated depreciation	(3,055)	(3,227)
Property, plant and equipment, net	3,657	3,680
Long-term investments	449	453
Goodwill	924	924
Acquisition-related intangibles	69	76
Deferred income taxes	899	927
Capitalized software licenses, net	193	205
Overfunded retirement plans	28	31
Other assets	47	45
Total assets	13,310	13,401
Current liabilities:
Accounts payable	605	621
Accrued compensation	348	629
Income taxes payable	247	109
Accrued expenses and other liabilities	593	622
Total current liabilities	1,793	1,981
Underfunded retirement plans	527	519
Deferred income taxes	82	86
Deferred credits and other liabilities	334	378
Total liabilities	2,736	2,964
Stockholders' equity:
Preferred stock, $25 par value. Authorized - 10,000,000 shares. Participating cumulative preferred. None issued.	0	0
Common stock, $1 par value. Authorized - 2,400,000,000 shares. Shares issued: March 31, 2011 -- 1,740,394,740; December 31, 2010 -- 1,740,166,101	1,740	1,740
Paid-in capital	1,068	1,114
Retained earnings	25,206	24,695
Less treasury common stock at cost. Shares: March 31, 2011 -- 579,225,953; December 31, 2010 -- 572,722,397	(16,738)	(16,411)
Accumulated other comprehensive income (loss), net of taxes	(702)	(701)
Total stockholders' equity	10,574	10,437
Total liabilities and stockholders' equity	$ 13,310	$ 13,401

Consolidated Balance Sheets Parenthetical - USD ($) $ in Millions	Mar. 31, 2011	Dec. 31, 2010
Current assets:
Allowance for doubtful accounts receivable, current	$ 20	$ 18
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
Commons stock, shares issued (in shares)	1,740,394,740	1,740,166,101
Treasury common stock at cost, shares (in shares)	579,225,953	572,722,397

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Cash flows from operating activities :
Net income	$ 666	$ 658
Adjustments to net income:
Depreciation	224	211
Stock-based compensation	57	47
Amortization of acquisition-related intangibles	7	13
Deferred income taxes	31	(11)
Increase (decrease) from changes in:
Accounts receivable	(44)	(251)
Inventories	(158)	(74)
Prepaid expenses and other current assets	(9)	(11)
Accounts payable and accrued expenses	(83)	(26)
Accrued compensation	(281)	(63)
Income taxes payable	137	191
Other	(31)	26
Net cash provided by operating activities	516	710
Cash flows from investing activities:
Additions to property, plant and equipment	(194)	(219)
Purchases of short-term investments	(872)	(599)
Sales, redemptions and maturities of short-term investments	1,111	768
Purchases of long-term investments	(1)	(2)
Redemptions and sales of long-term investments	19	1
Net cash provided by (used in) investing activities	63	(51)
Cash flows from financing activities :
Dividends paid	(153)	(149)
Sales and other common stock transactions	350	29
Excess tax benefit from share-based payments	19	0
Stock repurchases	(771)	(504)
Net cash used in financing activities	(555)	(624)
Net increase in cash and cash equivalents	24	35
Cash and cash equivalents, beginning of period	1,319	1,182
Cash and cash equivalents, end of period	$ 1,343	$ 1,217

Description of business and significant accounting policies and practices

3 Months Ended

Mar. 31, 2011

Description of business and significant accounting policies and practices [Abstract]

Description of business and significant accounting policies and practices

1.	Description of business and significant accounting policies and practices. Texas Instruments (TI) designs and makes semiconductors that we sell to electronics designers and manufacturers; about 80,000 customers all over the world buy our products.

Basis of Presentation – The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the U.S. (U.S. GAAP) and on the same basis as the audited financial statements included in our annual report on Form 10-K for the year ended December 31, 2010. The consolidated statements of income, statements of comprehensive income and statements of cash flows for the periods ended March 31, 2011 and 2010, and the balance sheet as of March 31, 2011, are not audited but reflect all adjustments that are of a normal recurring nature and are necessary for a fair statement of the results of the periods shown. The consolidated balance sheet as of December 31, 2010, presented herein is derived from the audited consolidated balance sheet presented in our annual report on Form 10-K at that date. Certain amounts in the prior periods' financial statements have been reclassified to conform to the current period presentation. Certain information and note disclosures normally included in annual consolidated financial statements have been omitted pursuant to the rules and regulations of the U.S. Securities and Exchange Commission. Because the consolidated interim financial statements do not include all of the information and notes required by U.S. GAAP for a complete set of financial statements, they should be read in conjunction with the audited consolidated financial statements and notes included in our annual report on Form 10-K for the year ended December 31, 2010. The results for the three-month period are not necessarily indicative of a full year's results.

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 the notes, except share and per-share amounts, are stated in millions of U.S. dollars unless otherwise indicated.

Acquisition Cost – During the first quarter of 2011, we incurred $2 million of acquisition-related expenses associated with the announced agreement to acquire National Semiconductor.

Use of Derivatives and Hedging – We use derivative financial instruments to manage exposure to foreign exchange risk. These instruments are primarily forward foreign currency exchange contracts that are used as economic hedges to reduce the earnings impact exchange rate fluctuations may have on our non-U.S. dollar net balance sheet exposures or for specified non-U.S. dollar forecasted transactions. Gains and losses from changes in the fair value of these forward foreign currency exchange contracts are credited or charged to other income (expense) net (OI&E). We do not use derivatives for speculative or trading purposes. We do not apply hedge accounting to our foreign currency derivative instruments.

Fair Values of Financial Instruments – The fair values of our derivative financial instruments were not significant at March 31, 2011. Our investments in cash equivalents, short-term investments and certain long-term investments are carried at fair value and are discussed in Note 5. 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.

Accounting Standards Adopted – In October 2009, the Financial Accounting Standards Board (FASB) concurrently issued the following Accounting Standards Updates (ASUs):

• ASU No. 2009 – 14 - Software (Topic 985): Certain Revenue Arrangements That Include Software Elements. This standard removes tangible products from the scope of software revenue recognition guidance and also provides guidance on determining whether software deliverables in an arrangement that includes a tangible product, such as embedded software, are within the scope of the software revenue guidance.

• ASU No. 2009 – 13 - Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements. This standard modifies the revenue recognition guidance for arrangements that involve the delivery of multiple elements, such as product, software, services and support, to a customer at different times as part of a single revenue generating transaction. This standard provides principles and application guidance to determine whether multiple deliverables exist, how the individual deliverables should be separated and how to allocate the revenue in the arrangement among those separate deliverables.

We adopted these standards in the first quarter of 2011 by applying them on a prospective basis to revenue arrangements entered into or materially modified beginning January 1, 2011. The adoption of these standards did not have a significant impact on our financial position or results of operations.

Losses Associated with the events in Japan

3 Months Ended

Mar. 31, 2011

Losses Associated with the events in Japan [Abstract]

Losses Associated with the events in Japan

Losses associated with the events in Japan. On March 11, 2011, a magnitude 9.0 earthquake struck near two of our three semiconductor wafer manufacturing facilities in Japan. Our manufacturing site in Miho suffered substantial damage during the earthquake, our facility in Aizu experienced significantly less damage, and our site in Hiji was undamaged.

Assessment and recovery efforts began immediately at TI's facilities. Aizu has since resumed full production. Initial production at Miho resumed in mid-April, with full production loadings on schedule for the third quarter. Production recovery schedules assume a stable source of electrical power and no additional complications from the earthquake or its aftermath.

The Miho fab produced about 10 percent of TI's wafer output as measured by revenue in 2010; more than a third of this revenue was for DLP® products, with the remainder for Analog products. During the first quarter of 2011, loss of revenue associated with the events in Japan was estimated to be about $20 million.

As of March 31, 2011, we recorded total expenses of about $30 million based on a preliminary estimate of the costs of property damages incurred and costs associated with business interruption. Virtually all of these costs are included in cost of revenue in the statement of income and are reported in our Other segment.

TI maintains earthquake insurance policies in Japan for property damages and business interruption losses. Although we are not able to determine an estimate of the final loss or a range of loss, it is reasonably possible that the final losses may exceed the limits of the insurance policies. Additionally, we cannot estimate the timing and amount of proceeds we will ultimately receive from these policies.

Income taxes

3 Months Ended

Mar. 31, 2011

Income taxes [Abstract]

Income taxes

Income taxes. Federal income taxes for the interim periods presented have been included in the accompanying financial statements on the basis of an estimated annual effective tax rate. As of March 31, 2011, the estimated annual effective tax rate for 2011 is about 28 percent, which differs from the 35 percent statutory corporate tax rate primarily due to the effects of non-U.S. tax rates.

Earnings per share (EPS)

3 Months Ended

Mar. 31, 2011

Earnings per share (EPS) [Abstract]

Computation and Reconciliation of Earnings per Common Share

Earnings per share (EPS). Unvested awards of share-based payments with rights to receive dividends or dividend equivalents, such as our restricted stock units (RSUs), are considered to be participating securities and the two-class method is used for purposes of calculating EPS. Under the two-class method, a portion of net income is allocated to these participating securities and therefore is excluded from the calculation of EPS allocated to common stock, as shown in the table below.

Computation and reconciliation of earnings per common share are as follows:

	For Three Months Ended							For Three Months Ended
	March 31, 2011							March 31, 2010
	Income			Shares		EPS		Income			Shares		EPS

Basic EPS:
Net Income	$	666						$	658
Less income allocated to RSUs		(10	)						(8	)
Income allocated to common stock for basic EPS calculation	$	656			1,167	$	.56	$	650			1,233	$	.53

Adjustment for dilutive shares:
Stock-based compensation plans					27							13

Diluted EPS:
Net Income	$	666						$	658
Less income allocated to RSUs		(10	)						(8	)
Income allocated to common stock for diluted EPS calculation	$	656			1,194	$	.55	$	650			1,246	$	.52

Options to purchase 17 million and 101 million shares of common stock that were outstanding during the first quarters of 2011 and 2010, respectively, were not included in the computation of diluted earnings per share because their exercise price was greater than the average market price of the common shares and, therefore, the effect would be anti-dilutive.

Valuation of debt and equity investments and certain liabilities

3 Months Ended

Mar. 31, 2011

Valuation of debt and equity investments and certain liabilities [Abstract]

Valuation of debt and equity investments and certain liabilities

5.	Valuation of debt and equity investments and certain liabilities.

Debt and equity investments

We classify our investments as available-for-sale, trading, equity method or cost method. Most of our investments are classified as available-for-sale.

Available-for-sale securities consist primarily of money market funds and debt securities. Available-for-sale securities are stated at fair value, which is generally based on market prices, broker quotes or, when necessary, financial models (see fair value discussion below). We record other-than-temporary losses (impairments) on these securities in OI&E, and all other unrealized gains and losses as an increase or decrease, net of taxes, in accumulated other comprehensive income (AOCI).

Trading securities are stated at fair value based on market prices. Our trading securities consist exclusively of mutual funds that 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 our trading securities and the related deferred compensation liabilities in selling, general and administrative expense.

Our other investments are not measured at fair value but are accounted for using either the equity method or cost method. These investments consist of interests in venture capital funds and other non-marketable equity securities. Gains or losses from equity method investments are reflected in OI&E based on our ownership share of the investee's financial results. Gains and losses on cost method investments are recorded in OI&E when realized or when an impairment of the investment's value is warranted based on our assessment of the recoverability of each investment.

Details of our investments and related unrealized gains and losses included in AOCI are as follows:

	March 31, 2011						December 31, 2010
	Cash and Cash Equivalents		Short-Term Investments		Long-Term Investments		Cash and Cash Equivalents		Short-Term Investments		Long-Term Investments

Measured at fair value:
Available-for-sale
Money market funds	$	54	$	--	$	--	$	167	$	--	$	--
Corporate obligations		50		506		--		44		649		--
U.S. government agency and
Treasury securities		998		1,008		--		855		1,081		--
Auction-rate securities		--		--		257		--		23		257

Trading
Mutual funds		--		--		133		--		--		139

Total	$	1,102	$	1,514	$	390	$	1,066	$	1,753	$	396

Other measurement basis:
Equity method investments	$	--	$	--	$	38	$	--	$	--	$	36
Cost method investments		--		--		21		--		--		21
Cash on hand		241		--		--		253		--		--
Total	$	1,343	$	1,514	$	449	$	1,319	$	1,753	$	453


Amounts included in AOCI from available-for-sale securities:
Unrealized gains (pre-tax)	$	--	$	1	$	--	$	--	$	1	$	--
Unrealized losses (pre-tax)	$	--	$	1	$	21	$	--	$	1	$	22

As of March 31, 2011, about 41 percent of our investments in the corporate obligations shown above are insured by either the Federal Deposit Insurance Corporation (FDIC) or the U.K. government.

As of March 31, 2011, and December 31, 2010, unrealized losses included in AOCI were associated with auction-rate securities. We have determined that our available-for-sale investments with unrealized losses are not other-than-temporarily impaired. We expect to recover the entire cost basis of these securities. We do not intend to sell these investments, nor do we expect to be required to sell these investments before a recovery of the cost basis. For the three months ended March 31, 2011 and 2010, we did not recognize in earnings any credit losses related to these investments.

For the three months ended March 31, 2011 and 2010, the proceeds from sales, redemptions and maturities of short-term available-for-sale securities, excluding cash equivalents, were $1.11 billion and $768 million, respectively. Gross realized gains and losses from these sales were not significant.

The following table presents the aggregate maturities of investments in money market funds and other debt securities classified as available-for-sale at March 31, 2011:

Due	Fair Value

One year or less	$	2,195
One to three years		421
Greater than three years (auction-rate securities)		257

Fair value

We measure and report our financial assets and liabilities at fair value. 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. Our Level 2 assets consist of corporate obligations, some U.S. government agency securities and auction-rate securities that have been called for redemption. We utilize a third-party data service to provide Level 2 valuations, verifying 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.

We own auction-rate securities that are primarily classified as Level 3 assets. Auction-rate securities are debt instruments with variable interest rates that historically would periodically reset through an auction process. These auctions have not functioned since 2008. There is no active secondary market for these securities, although limited observable transactions do occasionally occur. As a result, we use a discounted cash flow (DCF) model to determine the estimated fair value of these investments as of each quarter end. The assumptions used in preparing the DCF model include estimates for the amount and timing of future interest and principal payments and the rate of return required by investors to own these securities in the current environment. In making these assumptions we consider relevant factors including: the formula for each security that defines the interest rate paid to investors in the event of a failed auction; forward projections of the interest rate benchmarks specified in such formulas; the likely timing of principal repayments; the probability of full repayment considering the guarantees by the U.S. Department of Education of the underlying student loans and additional credit enhancements provided through other means; and, publicly available pricing data for student loan asset-backed securities that are not subject to auctions. Our estimate of the rate of return required by investors to own these securities also considers the reduced liquidity for auction-rate securities.

To date, we have collected all interest on all of our auction-rate securities when due and expect to continue to do so in the future. The principal associated with failed auctions will not be accessible until successful auctions resume, a buyer is found outside of the auction process, or issuers use a different form of financing to replace these securities. Meanwhile, issuers continue to repay principal over time from cash flows prior to final maturity, or make final payments when they come due according to contractual maturities ranging from 24 to 36 years. All of our auction-rate securities are backed by pools of student loans substantially guaranteed by the U.S. Department of Education and we continue to believe that the credit quality of these securities is high based on this guarantee. As of March 31, 2011, all of these securities were rated AAA or Aaa by at least one of the major rating agencies. Although most of these securities are dual rated AAA/Aaa, one ($25 million par value) is rated AAA/B3 and one ($12 million par value) is rated AAA/Baa1. While our ability to liquidate auction-rate investments is likely to be limited for some period of time, we do not believe this will materially impact our ability to fund our working capital needs, capital expenditures, dividend payments or other business requirements.

The following are our assets and liabilities that were accounted for at fair value on a recurring basis as of March 31, 2011 and December 31, 2010. 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.

	Fair Value
	March 31,		Level		Level		Level
	2011		1		2		3

Assets:
Money market funds	$	54	$	54	$	--	$	--
Corporate obligations		556		--		556		--
U.S. government agency and Treasury securities		2,006		1,498		508		--
Auction–rate securities		257		--		--		257
Mutual funds		133		133		--		--
Total assets	$	3,006	$	1,685	$	1,064	$	257

Liabilities (a):

Deferred compensation		154		154		--		--
Total liabilities	$	154	$	154	$	--	$	--

	Fair Value
	December 31,		Level		Level		Level
	2010		1		2		3

Assets:
Money market funds	$	167	$	167	$	--	$	--
Corporate obligations		693		--		693		--
U.S. government agency and Treasury securities		1,936		1,120		816		--
Auction–rate securities		280		--		23		257
Mutual funds		139		139		--		--
Total assets	$	3,215	$	1,426	$	1,532	$	257

Liabilities (a):
Contingent consideration	$	8	$	--	$	--	$	8
Deferred compensation		159		159		--		--
Total liabilities	$	167	$	159	$	--	$	8

(a) The liabilities above are a component of Accrued expenses and other liabilities or Deferred credits and other liabilities on our balance sheets, depending on the expected timing of payment.

The following table provides a reconciliation of changes in the fair values for Level 3 assets and liabilities.

	Level 3
Changes in fair value during the period (pre-tax):	Auction-rate securities			Contingent consideration

Beginning Balance, December 31, 2009	$	458		$	18
Change in fair value of contingent consideration - included in operating profit		--			(1	)
Reduction in unrealized loss - included in AOCI		1			--
Redemptions at par		(2	)		--
Ending Balance, March 31, 2010		457			17

Change in fair value of contingent consideration - included in operating profit		--			(9	)
Reduction in unrealized loss - included in AOCI		9			--
Redemptions at par		(186	)		--
Transfers into Level 2		(23	)		--
Ending Balance, December 31, 2010		257			8

Change in fair value of contingent consideration - included in operating profit		--			(8	)
Reduction in unrealized loss - included in AOCI		1			--
Redemptions at par		(1	)		--
Ending Balance, March 31, 2011	$	257		$	--

Postretirement benefit plans

3 Months Ended

Mar. 31, 2011

Postretirement benefit plans [Abstract]

Postretirement benefit plans [Text Block]

6.	Postretirement benefit plans. Components of net periodic employee benefit cost are as follows:

	U.S. Defined Benefit						U.S. Retiree Health Care						Non-U.S. Defined Benefit
For three months ended March 31,	2011			2010			2011			2010			2011			2010

Service cost	$	6		$	5		$	1		$	1		$	9		$	9
Interest cost		11			12			6			7			16			15
Expected return on plan assets		(11	)		(13	)		(5	)		(6	)		(19	)		(18	)
Amortization of prior service cost		--			--			1			--			(1	)		(1	)
Recognized net actuarial loss		6			5			3			3			9			7
Net periodic benefit cost	$	12		$	9		$	6		$	5		$	14		$	12

Settlement charges		--			10			--			--			--			--
Total, including charges	$	12		$	19		$	6		$	5		$	14		$	12

Contingencies

3 Months Ended

Mar. 31, 2011

Contingencies [Abstract]

Contingencies [Text Block]

Contingencies. 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 or accrue for any future liabilities that may result.

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. Consistent with general industry practice, we enter into formal contracts with certain customers that include negotiated warranty remedies. Typically, under these agreements, our warranty for semiconductor products includes: three years coverage; an obligation to repair, replace or refund; and a maximum payment obligation tied to the price paid for our products. In some cases, product claims may exceed the price of our products. From time to time, we also negotiate contingent consideration payment arrangements associated with certain acquisitions, which are recorded at fair value.

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.

Discontinued operations indemnity – In connection with the 2006 sale of the former Sensors & Controls business, we have agreed to indemnify Sensata Technologies, Inc., for specified litigation matters and certain liabilities, including environmental liabilities. Our indemnification obligations with respect to breaches of representations and warranties and the specified litigation matters are generally subject to a total deductible of $30 million and our maximum potential exposure is limited to $300 million. We have not made any indemnity payments related to this matter and do not expect that any potential payments related to this indemnity obligation would have a material adverse effect on our financial condition, results of operations or liquidity in future periods.

Acquisition reverse termination fee– In connection with our recently announced agreement to acquire National Semiconductor, if we are unable to close the transaction due to our inability to obtain regulatory approvals in various jurisdictions, we may be required to pay National Semiconductor a reverse termination fee of $350 million.

Segment data

3 Months Ended

Mar. 31, 2011

Segment data [Abstract]

Segment data [Text Block]

8.	Segment data.

	For Three Months Ended March 31,
	2011		2010
Segment Revenue

Analog	$	1,536	$	1,367
Embedded Processing		533		440
Wireless		658		717
Other		665		681
Total revenue	$	3,392	$	3,205

	For Three Months Ended March 31,
	2011		2010
Segment Operating Profit

Analog	$	418	$	398
Embedded Processing		102		73
Wireless		141		158
Other		247		321
Total operating profit	$	908	$	950

Description of business and significant accounting policies and practices (Policies)	3 Months Ended
	Mar. 31, 2011
Description of business and significant accounting policies and practices - (Policies) [Abstract]
Use of Derivatives and Hedging	Use of Derivatives and Hedging – We use derivative financial instruments to manage exposure to foreign exchange risk. These instruments are primarily forward foreign currency exchange contracts that are used as economic hedges to reduce the earnings impact exchange rate fluctuations may have on our non-U.S. dollar net balance sheet exposures or for specified non-U.S. dollar forecasted transactions. Gains and losses from changes in the fair value of these forward foreign currency exchange contracts are credited or charged to other income (expense) net (OI&E). We do not use derivatives for speculative or trading purposes. We do not apply hedge accounting to our foreign currency derivative instruments.
Fair values of Financial Instruments	Fair Values of Financial Instruments – The fair values of our derivative financial instruments were not significant at March 31, 2011. Our investments in cash equivalents, short-term investments and certain long-term investments are carried at fair value and are discussed in Note 5. 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.

Valuation of debt and equity investments and certain liabilities (Policies)	3 Months Ended
	Mar. 31, 2011
Valuation of debt and equity investments and certain liabilities [Abstract]
Investment policy	We classify our investments as available-for-sale, trading, equity method or cost method. Most of our investments are classified as available-for-sale. Available-for-sale securities consist primarily of money market funds and debt securities. Available-for-sale securities are stated at fair value, which is generally based on market prices, broker quotes or, when necessary, financial models (see fair value discussion below). We record other-than-temporary losses (impairments) on these securities in OI&E, and all other unrealized gains and losses as an increase or decrease, net of taxes, in accumulated other comprehensive income (AOCI). Trading securities are stated at fair value based on market prices. Our trading securities consist exclusively of mutual funds that 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 our trading securities and the related deferred compensation liabilities in selling, general and administrative expense. Our other investments are not measured at fair value but are accounted for using either the equity method or cost method. These investments consist of interests in venture capital funds and other non-marketable equity securities. Gains or losses from equity method investments are reflected in OI&E based on our ownership share of the investee's financial results. Gains and losses on cost method investments are recorded in OI&E when realized or when an impairment of the investment's value is warranted based on our assessment of the recoverability of each investment.
Fair value	Fair value We measure and report our financial assets and liabilities at fair value. 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. Our Level 2 assets consist of corporate obligations, some U.S. government agency securities and auction-rate securities that have been called for redemption. We utilize a third-party data service to provide Level 2 valuations, verifying 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. We own auction-rate securities that are primarily classified as Level 3 assets. Auction-rate securities are debt instruments with variable interest rates that historically would periodically reset through an auction process. These auctions have not functioned since 2008. There is no active secondary market for these securities, although limited observable transactions do occasionally occur. As a result, we use a discounted cash flow (DCF) model to determine the estimated fair value of these investments as of each quarter end. The assumptions used in preparing the DCF model include estimates for the amount and timing of future interest and principal payments and the rate of return required by investors to own these securities in the current environment. In making these assumptions we consider relevant factors including: the formula for each security that defines the interest rate paid to investors in the event of a failed auction; forward projections of the interest rate benchmarks specified in such formulas; the likely timing of principal repayments; the probability of full repayment considering the guarantees by the U.S. Department of Education of the underlying student loans and additional credit enhancements provided through other means; and, publicly available pricing data for student loan asset-backed securities that are not subject to auctions. Our estimate of the rate of return required by investors to own these securities also considers the reduced liquidity for auction-rate securities.

Contingencies (Policies)

3 Months Ended

Mar. 31, 2011

Contingencies [Abstract]

Contingencies

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 or accrue for any future liabilities that may result.

Earnings per share (EPS) (Tables)

3 Months Ended

Mar. 31, 2011

Earnings per share (EPS) [Abstract]

Computation and Reconciliation of Earnings per Common Share Table

Computation and reconciliation of earnings per common share are as follows:

	For Three Months Ended							For Three Months Ended
	March 31, 2011							March 31, 2010
	Income			Shares		EPS		Income			Shares		EPS

Basic EPS:
Net Income	$	666						$	658
Less income allocated to RSUs		(10	)						(8	)
Income allocated to common stock for basic EPS calculation	$	656			1,167	$	.56	$	650			1,233	$	.53

Adjustment for dilutive shares:
Stock-based compensation plans					27							13

Diluted EPS:
Net Income	$	666						$	658
Less income allocated to RSUs		(10	)						(8	)
Income allocated to common stock for diluted EPS calculation	$	656			1,194	$	.55	$	650			1,246	$	.52

Valuation of debt and equity investments and certain liabilities (Tables)

3 Months Ended

Mar. 31, 2011

Valuation of debt and equity investments and certain liabilities [Abstract]

Investments and Unrealized Gains and Losses

Details of our investments and related unrealized gains and losses included in AOCI are as follows:

	March 31, 2011						December 31, 2010
	Cash and Cash Equivalents		Short-Term Investments		Long-Term Investments		Cash and Cash Equivalents		Short-Term Investments		Long-Term Investments

Measured at fair value:
Available-for-sale
Money market funds	$	54	$	--	$	--	$	167	$	--	$	--
Corporate obligations		50		506		--		44		649		--
U.S. government agency and
Treasury securities		998		1,008		--		855		1,081		--
Auction-rate securities		--		--		257		--		23		257

Trading
Mutual funds		--		--		133		--		--		139

Total	$	1,102	$	1,514	$	390	$	1,066	$	1,753	$	396

Other measurement basis:
Equity method investments	$	--	$	--	$	38	$	--	$	--	$	36
Cost method investments		--		--		21		--		--		21
Cash on hand		241		--		--		253		--		--
Total	$	1,343	$	1,514	$	449	$	1,319	$	1,753	$	453


Amounts included in AOCI from available-for-sale securities:
Unrealized gains (pre-tax)	$	--	$	1	$	--	$	--	$	1	$	--
Unrealized losses (pre-tax)	$	--	$	1	$	21	$	--	$	1	$	22

Aggregate Maturities of Investments in Debt Securities Classified as Available-for-sale

The following table presents the aggregate maturities of investments in money market funds and other debt securities classified as available-for-sale at March 31, 2011:

Due	Fair Value

One year or less	$	2,195
One to three years		421
Greater than three years (auction-rate securities)		257

Assets and Liabilities Accounted for at Fair Value

	Fair Value
	March 31,		Level		Level		Level
	2011		1		2		3

Assets:
Money market funds	$	54	$	54	$	--	$	--
Corporate obligations		556		--		556		--
U.S. government agency and Treasury securities		2,006		1,498		508		--
Auction–rate securities		257		--		--		257
Mutual funds		133		133		--		--
Total assets	$	3,006	$	1,685	$	1,064	$	257

Liabilities (a):

Deferred compensation		154		154		--		--
Total liabilities	$	154	$	154	$	--	$	--

	Fair Value
	December 31,		Level		Level		Level
	2010		1		2		3

Assets:
Money market funds	$	167	$	167	$	--	$	--
Corporate obligations		693		--		693		--
U.S. government agency and Treasury securities		1,936		1,120		816		--
Auction–rate securities		280		--		23		257
Mutual funds		139		139		--		--
Total assets	$	3,215	$	1,426	$	1,532	$	257

Liabilities (a):
Contingent consideration	$	8	$	--	$	--	$	8
Deferred compensation		159		159		--		--
Total liabilities	$	167	$	159	$	--	$	8

(a) The liabilities above are a component of Accrued expenses and other liabilities or Deferred credits and other liabilities on our balance sheets, depending on the expected timing of payment.

Reconciliation of Change in Fair Value for Level 3 Assets

The following table provides a reconciliation of changes in the fair values for Level 3 assets and liabilities.

	Level 3
Changes in fair value during the period (pre-tax):	Auction-rate securities			Contingent consideration

Beginning Balance, December 31, 2009	$	458		$	18
Change in fair value of contingent consideration - included in operating profit		--			(1	)
Reduction in unrealized loss - included in AOCI		1			--
Redemptions at par		(2	)		--
Ending Balance, March 31, 2010		457			17

Change in fair value of contingent consideration - included in operating profit		--			(9	)
Reduction in unrealized loss - included in AOCI		9			--
Redemptions at par		(186	)		--
Transfers into Level 2		(23	)		--
Ending Balance, December 31, 2010		257			8

Change in fair value of contingent consideration - included in operating profit		--			(8	)
Reduction in unrealized loss - included in AOCI		1			--
Redemptions at par		(1	)		--
Ending Balance, March 31, 2011	$	257		$	--

Postretirement benefit plans (Tables)

3 Months Ended

Mar. 31, 2011

Postretirement benefit plans [Abstract]

Components of net periodic employee benefit cost

Components of net periodic employee benefit cost are as follows:

	U.S. Defined Benefit						U.S. Retiree Health Care						Non-U.S. Defined Benefit
For three months ended March 31,	2011			2010			2011			2010			2011			2010

Service cost	$	6		$	5		$	1		$	1		$	9		$	9
Interest cost		11			12			6			7			16			15
Expected return on plan assets		(11	)		(13	)		(5	)		(6	)		(19	)		(18	)
Amortization of prior service cost		--			--			1			--			(1	)		(1	)
Recognized net actuarial loss		6			5			3			3			9			7
Net periodic benefit cost	$	12		$	9		$	6		$	5		$	14		$	12

Settlement charges		--			10			--			--			--			--
Total, including charges	$	12		$	19		$	6		$	5		$	14		$	12

Segment data (Tables)

3 Months Ended

Mar. 31, 2011

Segment data [Abstract]

Segment Data Table

Segment data.

	For Three Months Ended March 31,
	2011		2010
Segment Revenue

Analog	$	1,536	$	1,367
Embedded Processing		533		440
Wireless		658		717
Other		665		681
Total revenue	$	3,392	$	3,205

	For Three Months Ended March 31,
	2011		2010
Segment Operating Profit

Analog	$	418	$	398
Embedded Processing		102		73
Wireless		141		158
Other		247		321
Total operating profit	$	908	$	950

Description of business and significant accounting policies and practices (Details) $ in Millions	3 Months Ended
	Mar. 31, 2011 USD ($)
Description of business and significant accounting policies and practices - (Details) [Abstract]
Number of customers around the world (in customers)	80,000
Acquisition-related costs	$ 2

Losses Associated with the events in Japan (Details) $ in Millions	3 Months Ended
	Mar. 31, 2011 USD ($)
Losses Associated with the events in Japan - (Details) [Abstract]
Number of Semiconductor wafer fab facilities damaged in earthquake (in number of facilities)	2
Semiconductor wafer fab facilities owned in Japan (in number of facilities)	3
Percentage of Texas Instrument's wafer output by the Mino fab measured in revenue (in hundredths)	10.00%
Percentage of wafer output produced by the Mino fab that was for DLP products in 2010 (in hundredths)	more than a third
Loss of revenue associated with the events in Japan during the first quarter of 2011	$ 20
Total amount of recorded expenses on property damages incurred and costs associated with business interruption in Japan	$ 30

Income taxes (Details)	3 Months Ended
Income taxes (Details)	Mar. 31, 2011
Income taxes - (Details) [Abstract]
Estimated annual effective tax rate (in hundredths)	28.00%
Statutory corporate tax rate (in hundredths)	35.00%

Earnings per share (EPS) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Basic EPS:
Net Income	$ 666	$ 658
Less income allocated to RSUs	(10)	(8)
Income allocated to common stock for basic EPS calculation	$ 656	$ 650
Weighted average number of shares outstanding, basic (in shares)	1,167	1,233
Basic EPS (in dollars per share)	$ 0.56	$ 0.53
Adjustment for dilutive shares:
Stock-based compensation plans (in shares)	27	13
Diluted EPS:
Net Income	$ 666	$ 658
Less income allocated to RSUs	(10)	(8)
Income allocated to common stock for diluted EPS calculation	$ 656	$ 650
Weighted average number of shares outstanding, diluted (in shares)	1,194	1,246
Diluted EPS (in dollars per share)	$ 0.55	$ 0.52
Anti-dilutive shares - stock based compensation (in shares)	17	101

Valuation of debt and equity investments and certain liabilities (Details)
$ in Millions

3 Months Ended

9 Months Ended

12 Months Ended

Mar. 31, 2011

USD ($)

Mar. 31, 2010

USD ($)

Dec. 31, 2010

USD ($)

Dec. 31, 2010

USD ($)

Detail of investments:

Cash and Cash Equivalents

$ 1,343

$ 1,319

Short-Term Investments

1,514

1,753

Long-Term Investments

449

453

Aggregate maturities of investments in money market funds and other debt securities classified as available-for-sale

One year or less

2,195

One to three years

421

Greater than three years (auction-rate securities)

257

Fair Value Assets And Liabilities Measured On Recurring Disclosure Items [Line Items]

Money Market Funds

167

Corporate Obligations

556

693

U.S. Government Agency and Treasury Securities

2,006

1,936

Auction-rate Securities

257

280

Mutual Funds

133

139

Total assets

3,006

3,215

Contingent Consideration

^[1]

Deferred Compensation Liabilities

^[1]

154

159

Total Liabilities

^[1]

$ 154

167

Changes in fair value during the period (pre-tax):

Percentage of investments covered by the Federal Deposit Insurance Corporation or the U.K. government. (in hundredths)

41.00%

Proceeds from sales, redemptions and maturities of short-term available-for-sale securities

$ 1,110

$ 768

Shortest period of time until contractual maturity of any one of our auction rate securities (in years)

Longest period of time until contractual maturity of any one of our auction rate securities (in years)

Minimum number of major rating agencies rating auction rate securities at AAA or Aaa

Number of securities rated at AAA/Baa1

Number of securities rated at AAA/B3

Par value of auction rate security rated at AAA/B3

$ 25

Par value of auction rate security rated at AAA/Baa1

Cash on hand [Member]

Detail of investments:

Cash and Cash Equivalents

241

253

Short-Term Investments

Long-Term Investments

Measured at fair value [Member]

Detail of investments:

Cash and Cash Equivalents

1,102

1,066

Short-Term Investments

1,514

1,753

Long-Term Investments

390

396

Measured at fair value [Member] | Available-for-sale [Member] | Money market funds [Member]

Detail of investments:

Cash and Cash Equivalents

167

Short-Term Investments

Long-Term Investments

Measured at fair value [Member] | Available-for-sale [Member] | Corporate Obligations [Member]

Detail of investments:

Cash and Cash Equivalents

Short-Term Investments

506

649

Long-Term Investments

Measured at fair value [Member] | Available-for-sale [Member] | U.S. government agency and treasury securities [Member]

Detail of investments:

Cash and Cash Equivalents

998

855

Short-Term Investments

1,008

1,081

Long-Term Investments

Measured at fair value [Member] | Available-for-sale [Member] | Auction-rate securities [Member]

Detail of investments:

Cash and Cash Equivalents

Short-Term Investments

Long-Term Investments

257

Measured at fair value [Member] | Trading [Member] | Mutual funds [Member]

Detail of investments:

Cash and Cash Equivalents

Short-Term Investments

Long-Term Investments

133

139

Other measurement basis [Member] | Equity method investments [Member]

Detail of investments:

Cash and Cash Equivalents

Short-Term Investments

Long-Term Investments

Other measurement basis [Member] | Cost method investments [Member]

Detail of investments:

Cash and Cash Equivalents

Short-Term Investments

Long-Term Investments

Level 1 [Member]

Fair Value Assets And Liabilities Measured On Recurring Disclosure Items [Line Items]

Money Market Funds

167

Corporate Obligations

U.S. Government Agency and Treasury Securities

1,498

1,120

Auction-rate Securities

Mutual Funds

133

139

Total assets

1,685

1,426

Contingent Consideration

^[1]

Deferred Compensation Liabilities

^[1]

154

159

Total Liabilities

^[1]

154

159

Level 2 [Member]

Fair Value Assets And Liabilities Measured On Recurring Disclosure Items [Line Items]

Money Market Funds

Corporate Obligations

556

693

U.S. Government Agency and Treasury Securities

508

816

Auction-rate Securities

Mutual Funds

Total assets

1,064

1,532

Contingent Consideration

^[1]

Deferred Compensation Liabilities

^[1]

Total Liabilities

^[1]

Level 3 [Member]

Fair Value Assets And Liabilities Measured On Recurring Disclosure Items [Line Items]

Money Market Funds

Corporate Obligations

U.S. Government Agency and Treasury Securities

Auction-rate Securities

257

Mutual Funds

Total assets

257

Contingent Consideration

^[1]

Deferred Compensation Liabilities

^[1]

Total Liabilities

^[1]

Auction Rate Securities Assets [Member]

Changes in fair value during the period (pre-tax):

Beginning balance

257

458

457

458

Reduction (increase) in unrealized loss - included in AOCI

Redemptions at par

(1)

(2)

(186)

Transfers into Level 2

(23)

Ending balance

257

457

257

Contingent Consideration [Member]

Changes in fair value during the period (pre-tax):

Beginning balance

Change in fair value of contingent consideration - included in operating profit

(8)

(1)

(9)

Ending balance

$ 17

$ 8

Cash and cash equivalents [Member]

Amounts included in AOCI from available-for-sale securities:

Unrealized gains (pre-tax)

Unrealized losses (pre-tax)

Short-term Investments [Member]

Amounts included in AOCI from available-for-sale securities:

Unrealized gains (pre-tax)

Unrealized losses (pre-tax)

Long-term Investments [Member]

Amounts included in AOCI from available-for-sale securities:

Unrealized gains (pre-tax)

Unrealized losses (pre-tax)

$ 21

$ 22

[1]	The liabilities above are a component of Accrued expenses and other liabilities or Deferred credits and other liabilities on our balance sheets, depending on the expected timing of payment.

Postretirement benefit plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 5
Interest cost	11	12
Expected return on plan assets	(11)	(13)
Amortization of prior service cost	0	0
Recognized net actuarial loss	6	5
Net periodic benefit cost	12	9
Settlement charges	0	10
Total, including charges and (gains)	12	19
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	6	7
Expected return on plan assets	(5)	(6)
Amortization of prior service cost	1	0
Recognized net actuarial loss	3	3
Net periodic benefit cost	6	5
Settlement charges	0	0
Total, including charges and (gains)	6	5
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	9	9
Interest cost	16	15
Expected return on plan assets	(19)	(18)
Amortization of prior service cost	(1)	(1)
Recognized net actuarial loss	9	7
Net periodic benefit cost	14	12
Settlement charges	0	0
Total, including charges and (gains)	$ 14	$ 12

Contingencies (Detail) $ in Millions	3 Months Ended
Contingencies (Detail) $ in Millions	Mar. 31, 2011 USD ($)
Contingencies [Abstract]
Standard product warranty description	Three years coverage; an obligation to repair, replace or refund; and a maximum payment obligation tied to the price paid for our products.
Discontinued operation - indemnification obligation deductible	$ 30
Discontinued operation - indemnification obligation maximum potential exposure	300
Acquisition reverse termination fee	$ 350

Segment data (Details) - USD ($) $ in Millions	3 Months Ended
Segment data (Details) - USD ($) $ in Millions	Mar. 31, 2011	Mar. 31, 2010
Segment Data Table [Line Items]
Total revenue	$ 3,392	$ 3,205
Total operating profit	908	950
Reporting Segment Analog [Member]
Segment Data Table [Line Items]
Total revenue	1,536	1,367
Total operating profit	418	398
Reporting Segment Embedded Processing [Member]
Segment Data Table [Line Items]
Total revenue	533	440
Total operating profit	102	73
Reporting Segment Wireless [Member]
Segment Data Table [Line Items]
Total revenue	658	717
Total operating profit	141	158
Reporting Segment Other [Member]
Segment Data Table [Line Items]
Total revenue	665	681
Total operating profit	$ 247	$ 321