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Supplemental Financial Information - Accounts and Other Receivables (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Accounts and Other Receivables [Abstract]    
Trade receivables $ 44 $ 53
Credit card receivables 4 112
Business partners and other suppliers 535 779
Income tax receivable 88 87
Other 38 55
Accounts and other receivables $ 709 $ 1,086