Leases (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
Property leases
Operating lease expense	$ 168	$ 134	$ 329	$ 273
Variable lease expense	152	112	254	166
Total property lease expense	320	246	583	439
Minimum annual guaranteed rent in excess of concession fees, net	$ (2)	$ (3)	$ (9)	$ 16