Assets and Liabilities Measured at Fair Value - Schedule of Realized and Unrealized Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Realized and unrealized gains (losses) on financial instruments	$ 18	$ (144)	$ 57	$ (85)
Exchangeable senior debentures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Realized and unrealized gains (losses) on financial instruments	$ 18	$ (144)	$ 57	$ (85)