Supplemental Financial Statement Data Changes in Balances of Each Component of Accumulated Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 02, 2015	Oct. 03, 2014
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (20)	$ 12
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(52)	(22)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	28	(4)
Other comprehensive income (loss)	(24)	(26)
Ending Balance	(44)	(14)
Accumulated Defined Benefit Plans Adjustment [Member]
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance	5	7
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Other comprehensive income (loss)	0	0
Ending Balance	5	7
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance	(25)	5
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(53)	(22)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	28	(4)
Other comprehensive income (loss)	(25)	(26)
Ending Balance	(50)	(21)
Unrealized Gains (Losses) on Marketable Securities [Roll Forward] [Member]
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance	0	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	1	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Other comprehensive income (loss)	1	0
Ending Balance	$ 1	$ 0