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Derivative Instruments and Hedging Activities - Summary of Sold Receivables Outstanding Balance Net of DPP Asset under Outstanding Securitization Program (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Derivative [Line Items]    
Sold receivables at the beginning of the year $ 686 $ 799
Proceeds from sale of receivables 4,852 5,071
Cash collections (remitted to the owner of the receivables) (4,849) (5,151)
Effect of currency exchange rate changes 1 (33)
Sold receivables at the end of the year $ 690 $ 686