Financial Instruments - Derivatives Not Designated as Hedging Instruments Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Derivatives | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on non-designated derivative instruments	$ 3	$ (6)	$ 9	$ (14)