Leases Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Lease Costs [Abstract]
Operating lease cost	$ 226	$ 244	$ 246
Variable lease cost	52	52	45
Sublease income	(87)	(95)	(103)
Net lease cost	$ 191	$ 201	$ 188