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Income Taxes - Components of Net Deferred Taxes (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Jul. 01, 2017 | Jul. 02, 2016
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Gross deferred tax assets: |  |  |
Tax credit carryforwards | $ 158.8 | $ 150.6 | $ 141.0
Net operating loss carryforwards | 1,219.0 | 1,875.4 | 1,846.3
Capital loss carryforwards | 63.9 | 102.4 | 145.9
Inventories | 4.0 | 5.4 | 6.1
Accruals and reserves | 21.8 | 30.3 | 27.4
Investments | 0.4 | 0.7 | 34.4
Other | 43.6 | 51.9 | 60.3
Acquisition-related items | 31.5 | 55.5 | 65.2
Gross deferred tax assets | 1,543.0 | 2,272.2 | 2,326.6
Valuation allowance | (1,383.7) | (2,097.8) | (2,174.3)
Deferred tax assets | 159.3 | 174.4 | 152.3
Gross deferred tax liabilities: |  |  |
Acquisition-related items | (26.8) | (6.5) | (13.2)
Undistributed foreign earnings | 0.0 | (3.0) | 0.0
Other | (38.1) | (57.3) | (31.1)
Deferred tax liabilities | (64.9) | (66.8) | (44.3)
Total net deferred tax assets | $ 94.4 | $ 107.6 | $ 108.0

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