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Supplemental financial information - Restructuring Charges, Other (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Disclosure Text Block Supplement [Abstract] |  |  |  |
Restructuring charges/other | $ 0 | $ 0 | $ (124) | $ 0

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- Definition Restructuring Charges And Other, Net + References No definition available. + Details
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Namespace Prefix: | txn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration