Supplemental Financial Statement Data - Accumulated Other Comprehensive Income Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 29, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ 11,418	$ 11,145
Other comprehensive income (loss) before reclassifications	41	(121)
Amounts reclassified from accumulated other comprehensive income (loss)	(18)	(30)
Income tax benefit (expense) related to items of other comprehensive income (loss)	(4)	(10)
Net current-period other comprehensive income (loss)	19	(161)
Ending Balance	11,531	11,418
Actuarial Pension Gains (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(18)	(45)
Other comprehensive income (loss) before reclassifications	(2)	39
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax benefit (expense) related to items of other comprehensive income (loss)	1	(12)
Net current-period other comprehensive income (loss)	(1)	27
Ending Balance	(19)	(18)
Foreign Currency Translation Gains (Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(39)	74
Other comprehensive income (loss) before reclassifications	18	(115)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Income tax benefit (expense) related to items of other comprehensive income (loss)	0	2
Net current-period other comprehensive income (loss)	18	(113)
Ending Balance	(21)	(39)
Unrealized Gains (Losses) on Derivative Contracts and Available for Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(1)	74
Other comprehensive income (loss) before reclassifications	25	(45)
Amounts reclassified from accumulated other comprehensive income (loss)	(18)	(30)
Income tax benefit (expense) related to items of other comprehensive income (loss)	(5)	0
Net current-period other comprehensive income (loss)	2	(75)
Ending Balance	1	(1)
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(58)	103
Ending Balance	$ (39)	$ (58)

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
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-Paragraph 1A
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-URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684

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-Publisher FASB
-Name Accounting Standards Codification
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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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