Leases - Future Maturities of Lease Liabilities - ASC 842 (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Operating Leases
2024		$ 260
2025		221
2026		183
2027		147
2028		110
Thereafter		413
Total Lease Payments		1,334
Less: Imputed Interest		309
Total Operating Lease Liabilities		1,025	$ 1,020
Finance Leases
2024		29
2025		28
2026		28
2027		27
2028		26
Thereafter		617
Total Lease Payments		755
Less: Imputed Interest		$ 487
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]		Total Finance Lease Liabilities	Total Finance Lease Liabilities
Total Finance Lease Liabilities	[1]	$ 268	$ 255

[1] Includes non-cash financing additions of $17 million and $20 million during the twelve month period ended December 31, 2023 and 2022, respectively.