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		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	$ (3)	$ (20)	$ (17)	$ (42)
Foreign Exchange \| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	0	1	0	1
Foreign Exchange \| Income Statement Location [Axis]: us-gaap:ForeignCurrencyTransactionGainLossBeforeTax
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	(3)	(20)	(16)	(42)
Foreign Exchange \| Income Statement Location [Axis]: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Derivative [Line Items]
Pre-tax amounts of gain/(loss) recognized in income	$ 0	$ (1)	$ (1)	$ (1)