Lessee - Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease expense	$ 83	$ 97	$ 104
Short-term lease expense	16	17	20
Variable lease expense	53	49	48
Sublease income	(1)	(5)	(4)
Total Lease expense	$ 151	$ 158	$ 168