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Supplemental Financial Information - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure Text Block Supplement [Abstract] |  |  |
Restructuring charges/other | $ (124) | $ 0 | $ 257

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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
Name: | us-gaap_DisclosureTextBlockSupplementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration