Equity Method Investments - Summary of Franchise and Property Revenues (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues from affiliates:
Property revenues	$ 158	$ 214	$ 336	$ 413
Total revenues	1,048	1,400	2,273	2,666
Affiliates
Revenues from affiliates:
Property revenues	8	9	16	17
Total revenues	65	99	149	188
Royalties
Revenues from affiliates:
Revenues	469	576	995	1,104
Royalties | Affiliates
Revenues from affiliates:
Revenues	54	87	127	165
Franchise fees and other revenue
Revenues from affiliates:
Revenues	15	21	33	38
Franchise fees and other revenue | Affiliates
Revenues from affiliates:
Revenues	$ 3	$ 3	$ 6	$ 6