Debt - Repayments of long-term debt (Details) $ in Millions	Dec. 31, 2021 USD ($)
Debt Disclosure [Abstract]
2022	$ 1,165
2023	350
2024	600
2025	750
2026	566
Thereafter	6,077
Total Repayments	9,508
Unamortized discounts, premiums, and debt issuance costs	(116)
Total Debt	$ 9,392

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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