Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 30, 2016	Jan. 01, 2016	Dec. 30, 2016	Jan. 01, 2016
Statement Of Other Comprehensive Income Loss [Abstract]
Net income (loss)	$ 235	$ 251	$ (131)	$ 534
Other comprehensive income (loss), net of tax:
Actuarial pension gain	1	0	6	0
Foreign currency translation adjustment	(186)	0	(169)	0
Net unrealized gain (loss) on foreign exchange contracts	(136)	38	(140)	13
Net unrealized loss on available-for-sale securities	0	(2)	0	(1)
Total other comprehensive income (loss), before tax	(321)	36	(303)	12
Income tax benefit related to items of other comprehensive income (loss), before tax	9	0	3	0
Other comprehensive income (loss), net of tax	(312)	36	(300)	12
Total comprehensive income (loss)	$ (77)	$ 287	$ (431)	$ 546