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Financial Instruments and Risk Management - Fair Value Information on Other Financial Assets and Liabilities Recorded at Amortized Cost (Parenthetical) (Detail) - USD ($)
$ in Millions
12 Months Ended
Jul. 03, 2017
Jul. 03, 2014
Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Abstract]      
Conversion features of the instruments value $ 242 $ 121 $ 242