Supplemental Financial Statement Data - Accumulated Other Comprehensive Income (Loss) Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
Jul. 02, 2021	Jul. 03, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 9,551	$ 9,967
Other comprehensive income (loss) before reclassifications	33	(95)
Amounts reclassified from accumulated other comprehensive income (loss)	(75)	(6)
Income tax benefit (expense) related to items of other comprehensive income (loss)	2	12
Net current-period other comprehensive income (loss)	(40)	(89)
Ending balance	10,721	9,551
Actuarial Pension Gains (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(58)	(53)
Other comprehensive income (loss) before reclassifications	27	(1)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax benefit (expense) related to items of other comprehensive income (loss)	(4)	(4)
Net current-period other comprehensive income (loss)	23	(5)
Ending balance	(35)	(58)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(2)	4
Other comprehensive income (loss) before reclassifications	(36)	(7)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax benefit (expense) related to items of other comprehensive income (loss)	0	1
Net current-period other comprehensive income (loss)	(36)	(6)
Ending balance	(38)	(2)
Unrealized Gains (Losses) on Derivative Contracts
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(97)	(19)
Other comprehensive income (loss) before reclassifications	42	(87)
Amounts reclassified from accumulated other comprehensive income (loss)	(75)	(6)
Income tax benefit (expense) related to items of other comprehensive income (loss)	6	15
Net current-period other comprehensive income (loss)	(27)	(78)
Ending balance	(124)	(97)
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(157)	(68)
Ending balance	$ (197)	$ (157)

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

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