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Revenue - Capitalized Contract Cost (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]        
Incremental direct costs of obtaining a contract $ 15 $ 14 $ 43 $ 44
Amortization of incremental direct costs $ 17 $ 18 $ 51 $ 55