Debt Obligations, Debt Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Scheduled Maturities of Debt [Abstract]
2024	$ 1,300
2025	1,150
2026	1,625
2027	575
2028	1,000
Thereafter	23,371
Total	29,021	$ 28,566
Commercial Paper Notes [Member]
Scheduled Maturities of Debt [Abstract]
2024	450
2025	0
2026	0
2027	0
2028	0
Thereafter	0
Total	450
Senior Notes [Member]
Scheduled Maturities of Debt [Abstract]
2024	850
2025	1,150
2026	1,625
2027	575
2028	1,000
Thereafter	21,075
Total	26,275
Junior Subordinated Notes [Member]
Scheduled Maturities of Debt [Abstract]
2024	0
2025	0
2026	0
2027	0
2028	0
Thereafter	2,296
Total	$ 2,296

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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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 in next 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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