Balance Sheet Information (AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ (29)	$ 1		$ 0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	2	0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	1,830	1,934	$ 2,162	1,665
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	1	(1)		1
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	0	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(30)	2	(27)	(1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(2)	0	(2)	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(6)	(2)	(8)	(4)
Other comprehensive income (loss)	(34)	0	(33)	(5)
Ending balance	1,792	1,689	1,792	1,689
Accumulated Other Comprehensive Loss [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(33)	(21)	(34)	(16)
Other comprehensive income (loss) before reclassifications			(33)	(4)
Amounts reclassified from AOCI			0	(1)
Other comprehensive income (loss)			(33)	(5)
Ending balance	(67)	(21)	(67)	(21)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax			(27)	0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax			0	1
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax			(27)	(1)
Ending balance	(27)	(1)	(27)	(1)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax			0	0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax			0	0
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax			0	0
Ending balance	0	0	0	0
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax			2	0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(20)	(4)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax			0	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax			2	0
Ending balance	(18)	(4)	(18)	(4)
Foreign currency translation adjustments [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(14)	(12)
Other comprehensive income (loss) before reclassifications			(8)	(4)
Amounts reclassified from AOCI			0	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax			(8)	(4)
Ending balance	$ (22)	$ (16)	$ (22)	$ (16)