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Business Segment, Revenue Information, Geographic Information and Concentration of Risk - Revenue by End Market and Form Factor (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 28, 2019	Mar. 29, 2019	Dec. 28, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 29, 2017	Sep. 29, 2017	Jun. 28, 2019	Jun. 29, 2018	Jun. 30, 2017
Revenue, Major Customer [Line Items]
Revenue, net	$ 3,634	$ 3,674	$ 4,233	$ 5,028	$ 5,117	$ 5,013	$ 5,336	$ 5,181	$ 16,569	$ 20,647	$ 19,093
Client Devices
Revenue, Major Customer [Line Items]
Revenue, net									8,095	10,108	9,520
Data Center Devices & Solutions
Revenue, Major Customer [Line Items]
Revenue, net									5,038	6,075	5,505
Client Solutions
Revenue, Major Customer [Line Items]
Revenue, net									3,436	4,464	4,068
HDD
Revenue, Major Customer [Line Items]
Revenue, net									8,746	10,698	10,640
Flash-based
Revenue, Major Customer [Line Items]
Revenue, net									$ 7,823	$ 9,949	$ 8,453

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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