Leases - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) restaurant property	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Lessor, Lease, Description [Line Items]
Restaurant properties to franchisees leased or subleased | restaurant	5,069
Non restaurant properties to third parties under capital and operating leases | property	164
Minimum lease term for assets given on lease	10 years
Maximum lease term for assets given on lease	20 years
Minimum lease term for assets taken on lease	10 years
Maximum lease term for assets taken on lease	20 years
Total shareholders' equity	$ 3,853	$ 3,721	$ 4,259	$ 3,618
Variable rent, percentage (as a percent)		100.00%
Cumulative Effect, Period of Adoption, Adjustment
Lessor, Lease, Description [Line Items]
Total shareholders' equity				$ 21