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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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