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Additional Financial Information - Components of Receivables, Net (Detail) - USD ($)
$ in Millions
Sep. 30, 2016
Jun. 30, 2016
Receivables [Abstract]    
Receivables $ 1,511 $ 1,442
Allowances for doubtful accounts (175) (170)
Allowance for sales returns (42) (43)
Receivables, net $ 1,294 $ 1,229