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Income Tax Expense - Reconciliation of the U.S. Federal statutory rate (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2017 | Jun. 28, 2019 | Jun. 29, 2018 | Jun. 30, 2017
Income Tax Disclosure [Abstract] |  |  |  |
U.S. Federal statutory rate | 35.00% | 21.00% | 28.00% | 35.00%
Tax rate differential on international income |  | (75.00%) | (34.00%) | (27.00%)
Tax effect of U.S. foreign income inclusion |  | (7.00%) | 1.00% | 4.00%
Tax effect of U.S. foreign minimum tax |  | (38.00%) | 0.00% | 0.00%
Tax effect of U.S. foreign derived intangible income |  | 11.00% | 0.00% | 0.00%
Tax effect of U.S. non-deductible stock-based compensation |  | (1.00%) | 1.00% | 1.00%
Tax effect of U.S. permanent differences |  | (3.00%) | (1.00%) | (1.00%)
State income tax, net of federal tax |  | 0.00% | 0.00% | 1.00%
One-time mandatory deemed repatriation tax |  | (41.00%) | 75.00% | 0.00%
Re-measurement of deferred taxes |  | 2.00% | (3.00%) | 0.00%
Change in valuation allowance |  | (2.00%) | 5.00% | 29.00%
Unremitted earnings of certain non-U.S. entities |  | (79.00%) | 0.00% | 5.00%
Tax related to SanDisk integration |  | 0.00% | 0.00% | 12.00%
Foreign income tax credits |  | 23.00% | 0.00% | 0.00%
Federal R&D credits |  | 24.00% | (4.00%) | (12.00%)
Other |  | 2.00% | 0.00% | 1.00%
Effective tax rate |  | (163.00%) | 68.00% | 48.00%

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