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Long-term Debt and Finance Leases - Interest Expense in Connection with Convertible Senior Notes, due 2048 (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Debt Instrument [Line Items]
Amortization of financing costs and debt discounts			$ 17	$ 30
Convertible Senior Notes due 2048 | Recourse Debt
Debt Instrument [Line Items]
Contractual interest expense	$ 4	$ 4	12	12
Amortization of financing costs and debt discounts	0	4	1	12
Total	$ 4	$ 8	$ 13	$ 24
Effective Interest Rate	0.76%	1.34%	2.28%	3.99%

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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