Contingencies (Detail) (USD $) In Millions	6 Months Ended
Jun. 30, 2011
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

Amount the Company may be required to pay National Semiconductor if they are unable to close the transaction due to an inability to obtain the remaining regulatory approval.

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Namespace Prefix:	txn
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of expense incurred by indemnified party before it results in TI exposure.

+ Details

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Namespace Prefix:	txn
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The estimated maximum amount of possible loss from the contingency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Describes the nature of the guarantee, including the approximate term of the guarantee, how the guarantee arose, and the events or circumstances that would require the guarantor to perform under the guarantee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 45
-Paragraph 13
-Subparagraph a

+ Details

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Balance Type:	na
Period Type:	duration