Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Operating Leases
2024	$ 348
2025	258
2026	197
2027	124
2028	86
Thereafter	454
Total lease payments	1,467
Less: interest	(334)
Total	1,133
Less: current portion	(288)	$ (326)
Operating lease liabilities	845	922
Finance Leases
2024	24
2025	25
2026	25
2027	26
2028	26
Thereafter	135
Total lease payments	261
Less: interest	(57)
Total	204
Less: current portion	(14)	(14)
Long-term portion	$ 190	$ 210