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Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Property Plant And Equipment [Abstract]    
Land $ 3,333 $ 3,429
Buildings and leasehold improvements 6,600 6,951
Furniture and equipment 1,000 1,042
Construction-in-progress 63 52
Property and equipment, gross 10,996 11,474
Accumulated depreciation and amortization (2,447) (2,281)
Property and equipment, net $ 8,549 $ 9,193