Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Statement Of Other Comprehensive Income Loss [Abstract]
Net income	$ 1,465	$ 1,617	$ 980
Other comprehensive income (loss), net of tax:
Actuarial pension gains (losses)	(2)	(4)	14
Foreign currency translation gains (losses)	0	0	(4)
Net unrealized gain (loss) on foreign exchange contracts	(30)	51	(30)
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss)	(32)	47	(20)
Total comprehensive income	$ 1,433	$ 1,664	$ 960