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Income Tax Expense - Reconciliation of the U.S. Federal statutory rate (Details) | 12 Months Ended
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Jun. 27, 2025 | Jun. 28, 2024 | Jun. 30, 2023
Income Tax Disclosure [Abstract] |  |  |
U.S. Federal statutory rate | 21.00% | 21.00% | 21.00%
Tax rate differential on international income | (36.00%) | (22.00%) | (22.00%)
Tax effect of U.S. foreign income inclusion | 1.00% | (1.00%) | (1.00%)
Tax effect of U.S. foreign minimum tax | 25.00% | (6.00%) | 0.00%
Tax effect of U.S. stock-based compensation | (2.00%) | (1.00%) | (1.00%)
Tax effect of non-deductible loss on retained interest in Sandisk | 16.00% | 0.00% | 0.00%
Tax effect of U.S. permanent differences | 0.00% | 5.00% | (1.00%)
State income tax, net of federal tax | 0.00% | 2.00% | (1.00%)
Change in valuation allowance | 6.00% | (3.00%) | 1.00%
Unremitted earnings of certain non-U.S. entities | (2.00%) | (2.00%) | (1.00%)
Foreign income tax credits | (8.00%) | 1.00% | 0.00%
R&D tax credits | (6.00%) | 5.00% | 4.00%
U.S. return to provision | 1.00% | 0.00% | (1.00%)
Tax reserves | 1.00% | (3.00%) | (3.00%)
Inter-entity asset transfer | (61.00%) | 0.00% | 0.00%
Other | (1.00%) | 0.00% | (1.00%)
Effective tax rate | (45.00%) | (4.00%) | (6.00%)

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