Hedging Activities and Fair Value Measurements - Location on Unaudited Consolidated Statements of Operations (Details) - Not Designated as Hedging Instrument [Member] - Other Nonoperating Income (Expense) [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ (10)	$ (48)	$ (184)	$ (4)
Foreign Currency Transaction Gain (Loss), before Tax	(2)	44	172	(7)
Net currency exchange gain (loss)	$ (12)	$ (4)	$ (12)	$ (11)