Lessee - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease expense	$ 24	$ 27	$ 49	$ 54
Short-term lease expense	4	6	8	11
Variable lease expense	13	11	25	23
Sublease income	(2)	(1)	(4)	(2)
Total Lease expense	$ 39	$ 43	$ 78	$ 86