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Dragontail Acquisition (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 07, 2021
Mar. 18, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]          
Payments to Acquire Businesses, Net of Cash Acquired   $ 408 $ 0 $ 408 $ 0
Goodwill     $ 657 $ 597 [1] $ 530 [1]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets   $ 96      
Dragontail Systems Limited          
Business Acquisition [Line Items]          
Payments to Acquire Businesses, Net of Cash Acquired $ 66        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents 3        
Goodwill 57        
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets $ 11        
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 7 years        
[1] Goodwill, net includes $144 million of accumulated impairment loss recorded in the year ended December 31, 2020, related to our Habit Burger Grill segment and $17 million of accumulated impairment losses for each year presented related to our Pizza Hut segment.