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Franchise Arrangements - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Franchisor Disclosure [Line Items]    
Franchise arrangement period 20 years  
Net property and equipment $ 24,160.0 $ 22,842.7
Land 6,026.4 5,521.4
Accumulated depreciation and amortization of property and equipment 14,890.9 $ 14,350.9
Franchise Arrangements    
Franchisor Disclosure [Line Items]    
Net property and equipment 19,200.0  
Land 5,400.0  
Accumulated depreciation and amortization of property and equipment $ 10,900.0