Accumulated Other Comprehensive Income (Loss) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]
After-tax cumulative translation adjustment losses included in accumulated comprehensive income (loss)	$ 1,600	$ 1,600
After-tax unrecognized pension and other postretirement benefits costs included in accumulated comprehensive income (loss)	236	267
Net Investment Hedging \| Euro Notes
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive gain (loss) foreign currency transaction and translation adjustment, before tax	82	$ (196)
Net Investment Hedging \| Senior Notes
Accumulated Other Comprehensive Income (Loss) [Line Items]
Long-term debt	$ 4,900		$ 5,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

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