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Trade Accounts Receivable, Net - Trade Accounts Receivable, Net (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Receivables [Abstract]    
Trade accounts receivable $ 1,396 $ 1,292
Allowance for doubtful accounts (16) (15)
Total $ 1,380 $ 1,277