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Other Financial Data - Schedule of Other Current Assets (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Other Financial Data [Abstract]    
Cost to fulfill contracts with customers $ 229 $ 335
Prepaid expenses 156 97
Taxes receivable 79 88
Other 66 82
Total $ 530 602
Receivables from divested business   $ 4