Foreign Exchange Contracts - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jan. 02, 2015	Dec. 27, 2013	Jan. 02, 2015	Dec. 27, 2013
Foreign Exchange Contracts [Abstract]
Contract maturity dates	Less than 12 months
Unrealized gains expected to be reclassified into earnings	$ 39,000,000		$ 39,000,000
Foreign exchange contracts opened during the period by company	1,000,000,000	1,700,000,000.0	2,000,000,000	2,700,000,000.0
Foreign exchange contracts closed during the period by company	$ 1,100,000,000.0	$ 1,300,000,000.0	$ 2,100,000,000.0	$ 2,700,000,000.0