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Long-term Debt and Finance Leases - Interest Expense in Connection with Convertible Senior Notes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Debt Instrument [Line Items]
Amortization of financing costs and debt discounts			$ 13	$ 21
Convertible Senior Notes, due 2048
Debt Instrument [Line Items]
Amortization of financing costs and debt discounts	$ 0	$ 1	0	1
Total	1	3	3	7
Convertible Senior Notes, due 2048 | Recourse Debt
Debt Instrument [Line Items]
Contractual interest expense	$ 1	$ 2	$ 3	$ 6
Effective interest rate	0.79%	0.76%	1.55%	1.54%

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