Leases - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lease, Cost [Abstract]
Operating lease cost	$ 191	$ 188	$ 181
Variable lease cost	12	11	10
Total	$ 203	$ 199	$ 191