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Income Tax, Disputed Amount

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Income Taxes (Narrative) (One-time Transaction) (Details) $ in Millions, ₨ in Billions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2025 USD ($)	Jul. 31, 2025 USD ($)	Jan. 08, 2024 USD ($)	Apr. 30, 2018 INR (₨)	Mar. 31, 2018 INR (₨)
One-time Transaction [Table] [Line Items]
Discrete tax benefit			$ 34
Deferred tax asset related to research and experimental costs capitalized outside the United States								$ 390
OBBBA, non-cash income tax expense		$ 390
Income tax expense	$ 237	$ 613	676	$ 1,023
Indian Income Tax Department (ITD) \| Foreign tax authority \| 2013 India Share Repurchase
One-time Transaction [Table] [Line Items]
Foreign earnings repatriated						$ 523
Indian Income Tax Department (ITD) \| Foreign tax authority \| 2016 India Cash Remittance
One-time Transaction [Table] [Line Items]
Foreign earnings repatriated					$ 2,800
Income tax expense					$ 135
Income tax, disputed amount	344		344								₨ 33
Deposits assets \| ₨										₨ 5
Desposits assets, percent disputed tax amount										15.00%
Indian Income Tax Department (ITD) \| Foreign tax authority \| 2016 India Cash Remittance \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:LongTermInvestments
One-time Transaction [Table] [Line Items]
Restricted investments									$ 30,000
Indian Income Tax Department (ITD) \| Foreign tax authority \| 2016 India Cash Remittance \| Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsNoncurrent
One-time Transaction [Table] [Line Items]
Deposits assets	$ 360		$ 360				$ 384