Revenue Recognition - Disaggregation of total revenues (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Property revenues	$ 182	$ 178
Total revenues	1,260	1,225
Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Sales	507	503
Royalties
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Sales	346	329
Franchise fees and other revenue
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Sales	20	18
Advertising revenues
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Sales	205	197
Total revenues	$ 205	$ 197