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Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Statement of Comprehensive Income [Abstract]    
Net increase to other comprehensive income or loss upon the translation $ 36 $ 90
Changes in derivative financial instruments, net of tax 13 5
Changes in derivative financial instruments, tax $ 4 $ 1