Debt - Additional Information (Detail) (USD $)	3 Months Ended
	Dec. 27, 2013	Jan. 31, 2014	Jan. 09, 2014	Jun. 28, 2013
Debt Instrument [Line Items]
Loan period	5 years
Total unsecured loan under credit facility	$ 2,800,000,000		$ 4,000,000,000
Credit facility revolving loan	500,000,000		1,500,000,000
Long-term Debt	1,800,000,000.0		1,800,000,000.0
Line of credit facility additional borrowing capacity			1,000,000,000
Short-term Debt	500,000,000		500,000,000	0
Interest rate of borrowing under credit facility	2.16%
Remaining outstanding balance term loan facility	2,300,000,000	2,500,000,000
Term loan facility [Member]
Debt Instrument [Line Items]
Total unsecured loan under credit facility	$ 2,300,000,000		$ 2,500,000,000