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Intangible Assets - Amortization Expense (Details)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Years
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Years
Sep. 30, 2021
USD ($)
Finite-Lived Intangible Assets [Line Items]        
Intangible asset amortization expense $ 25 $ 23 $ 74 $ 69
The number of succeeding years for which amortization expense is disclosed | Years 4   4  
Amortization expense for the remainder of the Year $ 23   $ 23  
Amortization expense for Year One 90   90  
Amortization expense for Year Two 89   89  
Amortization expense for Year Three 89   89  
Amortization expense for Year Four 89   89  
Amortization expense Thereafter 719   719  
Amortizable—Franchise agreements (a)        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset amortization expense 17 16 50 50
Amortizable—License agreements (c)        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset amortization expense 1 1 1 1
Amortizable—Customer relationships (d)        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset amortization expense 6 5 16 16
Amortizable—Other (f)        
Finite-Lived Intangible Assets [Line Items]        
Intangible asset amortization expense $ 1 $ 1 $ 7 $ 2