Debt - Additional Information (Detail) - USD ($)	3 Months Ended
	Oct. 02, 2015	Jan. 09, 2014
Debt Instrument [Line Items]
Total unsecured loan under credit facility		$ 4,000,000,000
Line of credit facility additional borrowing capacity		1,000,000,000.0
Period of Term Loan Facility	5 years
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	$ 125,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	219,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	250,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	$ 1,700,000,000
Term loan facility [Member]
Debt Instrument [Line Items]
Total unsecured loan under credit facility		2,500,000,000.0
Interest rate of borrowing under credit facility	1.70%
Long-term Debt	$ 2,300,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility revolving loan		$ 1,500,000,000.0
Interest rate of borrowing under credit facility	1.70%
Remaining outstanding balance term loan facility	$ 255,000,000