Derivative and Other Financial Instruments - Schedule of Fair Value Hedges and Contracts Not Designated as Hedges (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	$ (1)	$ (9)	$ (18)	$ (51)
Foreign exchange \| Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	0	0	0	1
Foreign exchange \| Location, Statement of Income, Balance [Axis]: us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	5	(10)	(11)	(52)
Foreign exchange \| Location, Statement of Income, Balance [Axis]: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	0	1	(1)	0
Interest rate \| Location, Statement of Income, Balance [Axis]: us-gaap:InterestExpenseNonoperating
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	$ (6)	$ 0	$ (6)	$ 0