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Trade Accounts Receivable, Net - Trade Accounts Receivable, Net (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Receivables [Abstract]    
Trade accounts receivable $ 1,058 $ 1,015
Allowance for doubtful accounts (9) (10)
Total $ 1,049 $ 1,005