Leases Total Lease Cost (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 358	$ 332	$ 315
Variable lease cost	48	35	31
Short-term lease cost	69	51	80
Total lease cost	$ 475	$ 418	$ 426