Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions		Sep. 30, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
Total borrowings at face value		$ 19,089	$ 28,493
Adjustments to book value:
Unamortized premium, net		1,321	670
Debt issuance costs		(79)	(135)
Net book value of debt		20,331	29,028
Long-term finance leases		552	504
Current finance leases		141	85
Total debt and finance leases		21,024	29,617
Less: current maturities of financing leases		(141)	(85)
Less: current maturities of long-term debt		(405)	(101)
Long-term debt, net	[1]	$ 20,478	$ 29,431

[1] Included $552 million and $504 million of finance lease liabilities as of September 30, 2022 and December 31, 2021, respectively.