Borrowings and Credit Agreements - Debt Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Long-term Debt, Fiscal Year Maturity [Abstract]
2024	$ 2,705
2025	3,785
2026	4,008
2027	3,379
2028	5,007
Thereafter	41,685
Subtotal	60,569
Commercial Paper	200	$ 0
Finance lease liabilities	1,391	1,465
Total debt principal	$ 62,160	$ 52,753

Short-Term Debt, Long-Term Debt, Gross And Lease Obligation

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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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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Present value of lessee's discounted obligation for lease payments from finance lease.

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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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