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Fair Value (Narrative) (Details) - Cost-method investments [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 02, 2021	Apr. 03, 2020	Apr. 02, 2021	Apr. 03, 2020	Jul. 03, 2020
Other Nonoperating Income (Expense) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount	$ 10	$ 0	$ 33	$ 0
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount	0	0	7	1
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount	10	$ 0	33	$ 0
Other current assets [Member] | Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Cost method investment	$ 163		$ 163		$ 135

X

- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ References

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- Definition

Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117539-209714

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- Definition

Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
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