Objectives and Strategies for Using Derivatives (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Reclassification for discontinuance	$ (20,000,000)	$ 0	$ 0
Losses to be reclassified within next twelve months	21,000,000
Gain (losses) to be reclassified	(103,000,000)	64,000,000	(43,000,000)
Interest Rate Contract | Fair Value Hedging
Derivative [Line Items]
Aggregate notional value	425,000,000
Long-term debt	405,000,000
Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivative [Line Items]
Aggregate notional value	4,600,000,000
Gains (Losses) on undesignated foreign exchange hedging instruments	46,000,000	(49,000,000)	$ 2,000,000
Foreign Exchange Contract | Cash Flow Hedging
Derivative [Line Items]
Aggregate notional value	2,300,000,000
Foreign Exchange Contract | Net Investment Hedging
Derivative [Line Items]
Aggregate notional value	1,100,000,000
Discontinued Insturments | Cash Flow Hedging
Derivative [Line Items]
Aggregate notional value	690,000,000
Assets at Significant Observable Inputs (Level 2)
Derivative [Line Items]
Derivative assets	81,000,000	189,000,000
Derivative liability	191,000,000	137,000,000
Assets at Significant Observable Inputs (Level 2) | Recurring
Derivative [Line Items]
Derivative assets	81,000,000	189,000,000
Derivative liability	$ 191,000,000	$ 137,000,000