Long-Term Debt and Short-Term Borrowings - Future Maturities of Long-term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Maturities of long-term debt
2024	$ 1,152
2025	1,867
2026	1,563
2027	846
2028	818
After 2028	7,994
Total long-term debt	$ 14,240	$ 15,939

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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