Other Income, Net (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Other Income And Expenses [Abstract]
Equity income from investments in unconsolidated affiliates		$ 17	$ 20
Amortization of reacquired franchise right	[1]	(9)	(3)
Foreign exchange impact and other		(2)	(1)
Other income, net		$ 6	$ 16

[1] Increase in amortization of reacquired franchise right resulted from the acquisition of Suzhou KFC as disclosed in Note 1, with $61 million of the purchase price allocated to intangible assets related to reacquired franchise right, which is being amortized over the remaining franchise contract period.