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Income Taxes - Components of Net Deferred Taxes (Details) - USD ($) $ in Millions | Jun. 27, 2020 | Jun. 29, 2019 | Jun. 30, 2018
--- | --- | --- | ---
Gross deferred tax assets: |  |  |
Tax credit carryforwards | $ 159.5 | $ 164.3 | $ 158.8
Net operating loss carryforwards | 1,118.6 | 1,206.9 | 1,219.0
Capital loss carryforwards | 63.9 | 63.9 | 63.9
Inventories | 20.3 | 9.6 | 4.2
Accruals and reserves | 61.6 | 55.6 | 20.5
Acquisition-related items | 45.1 | 42.1 | 31.5
Capitalized research costs | 72.0 | 0.0 | 0.0
Other | 44.6 | 43.1 | 43.8
Gross deferred tax assets | 1,585.6 | 1,585.5 | 1,541.7
Valuation allowance | (1,405.5) | (1,405.3) | (1,382.1)
Deferred tax assets | 180.1 | 180.2 | 159.6
Gross deferred tax liabilities: |  |  |
Acquisition-related items | (31.8) | (33.5) | (26.8)
Tax on unrepatriated earnings | (15.6) | (1.8) | (1.6)
Foreign branch taxes | (21.4) | (22.0) | 0.0
Other | (29.8) | (29.1) | (37.4)
Deferred tax liabilities | (98.6) | (86.4) | (65.8)
Total net deferred tax assets | $ 81.5 | $ 93.8 | $ 93.8

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