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Supplemental Financial Statement Data - Accumulated Other Comprehensive Income Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2019	Jun. 29, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 11,531	$ 11,418
Ending balance	9,967	11,531
Actuarial Pension Gains (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(19)	(18)
Other comprehensive income (loss) before reclassifications	(39)	(2)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax benefit (expense) related to items of other comprehensive income (loss)	5	1
Net current-period other comprehensive loss	(34)	(1)
Ending balance	(53)	(19)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(21)	(39)
Other comprehensive income (loss) before reclassifications	28	18
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax benefit (expense) related to items of other comprehensive income (loss)	(3)	0
Net current-period other comprehensive loss	25	18
Ending balance	4	(21)
Unrealized Gains (Losses) on Derivative Contracts and available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	1	(1)
Other comprehensive income (loss) before reclassifications	(48)	25
Amounts reclassified from accumulated other comprehensive income (loss)	9	(18)
Income tax benefit (expense) related to items of other comprehensive income (loss)	19	(5)
Net current-period other comprehensive loss	(20)	2
Ending balance	(19)	1
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(39)	(58)
Other comprehensive income (loss) before reclassifications	(59)	41
Amounts reclassified from accumulated other comprehensive income (loss)	9	(18)
Income tax benefit (expense) related to items of other comprehensive income (loss)	21	(4)
Net current-period other comprehensive loss	(29)	19
Ending balance	$ (68)	$ (39)

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Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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