Capital Structure - Debt maturities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Total debt outstanding by maturity:
2023	$ 750
2024	350
2025	600
2026	550
2027	0
Thereafter	5,741
Total long-term debt principal	$ 7,991	$ 7,991

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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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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