Lessee, Lease Expense Components (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Amortization of leasehold interests in land	$ 56	$ 55	$ 51
Operating lease cost	14	12	16
Short-term lease cost	1	1	5
Variable lease, cost	2	2	5
Amortization of ROU assets	8	9	5
Interest on lease liabilities	1	1	0
Total lease cost	$ 82	$ 80	$ 82