Supplemental Financial Statement Data Accumulated Other Comprehensive Income Roll Forward (Details) $ in Millions	6 Months Ended
	Dec. 29, 2017 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ 11,418
Ending Balance	11,272
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(18)
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	0
Income tax expense related to items of other comprehensive income	0
Net current-period other comprehensive income	0
Ending Balance	(18)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(39)
Other comprehensive income (loss) before reclassifications	2
Amounts reclassified from accumulated other comprehensive income	0
Income tax expense related to items of other comprehensive income	0
Net current-period other comprehensive income	2
Ending Balance	(37)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	2
Other comprehensive income (loss) before reclassifications	(1)
Amounts reclassified from accumulated other comprehensive income	0
Income tax expense related to items of other comprehensive income	0
Net current-period other comprehensive income	(1)
Ending Balance	1
Accumulated net gain (loss) from cash flow hedges attributable to parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(3)
Other comprehensive income (loss) before reclassifications	15
Amounts reclassified from accumulated other comprehensive income	(1)
Income tax expense related to items of other comprehensive income	(3)
Net current-period other comprehensive income	11
Ending Balance	8
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(58)
Other comprehensive income (loss) before reclassifications	16
Amounts reclassified from accumulated other comprehensive income	(1)
Income tax expense related to items of other comprehensive income	(3)
Net current-period other comprehensive income	12
Ending Balance	$ (46)