Debt - Future Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Total Debt
2022	$ 1,483
2023	2,516
2024	3,094
2025	4,215
2026	3,051
Thereafter	10,933
Total	25,292	$ 28,214
Amortization of Debt (Discount)/Premium and Debt Issuance Cost, net and other
2022	(54)
2023	(60)
2024	(61)
2025	(39)
2026	(8)
Thereafter	14
Total	(208)	(240)
Total debt	$ 25,084	$ 27,974

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