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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 01, 2017 | Jul. 02, 2016 | Jun. 27, 2015
Income Tax Disclosure [Abstract] |  |  |
Tax benefit associated with exercise of stock options | $ 0.0 | $ 0.0 | $ 0.0
Net operating loss carryforwards |  |  |
Portion of net operating loss carryforwards, when realized, will be credited to additional paid-in-capital | 117.7 |  |
Undistributed earnings of certain foreign subsidiaries | 373.3 |  |
Estimated additional U.S. income or foreign withholding taxes that would have to be provided if earnings of foreign subsidiaries were repatriated to the U.S. | 21.5 |  |
Increase (decrease) in deferred tax asset valuation allowances | (76.5) | (160.2) | $ 12.7
Valuation allowance attributable to pre-fiscal 2006 windfall stock option deductions | 514.7 |  |
Offset to tax expense from write off of tax deductible goodwill |  | 9.5 |
Portion of unrecognized tax benefits, if recognized, would impact the effective tax rate | 3.0 |  |
Portion of unrecognized tax benefits, if recognized, would impact the valuation allowance | 36.0 |  |
Accrued interest and penalties related to unrecognized tax benefits | 1.8 | 1.7 |
Increase in accrued interest and penalties related to unrecognized tax benefits | 0.1 |  |
Unrecognized tax benefits that may be recognized during the next twelve months | 0.1 |  |
Federal |  |  |
Net operating loss carryforwards |  |  |
Operating loss carryforwards | 5,115.1 |  |
Research and other tax credit carryforwards | 103.9 |  |
State |  |  |
Net operating loss carryforwards |  |  |
Operating loss carryforwards | 762.2 |  |
Research and other tax credit carryforwards | 40.7 |  |
Foreign |  |  |
Net operating loss carryforwards |  |  |
Operating loss carryforwards | 624.0 |  |
Research and other tax credit carryforwards | $ 1.4 |  |
Continuing operations |  |  |
Net operating loss carryforwards |  |  |
Income tax benefit intraperiod tax allocation related to other comprehensive income |  | 20.7 |
Spin-off adjustment |  |  |
Net operating loss carryforwards |  |  |
Increase (decrease) in deferred tax asset valuation allowances |  | $ 8.9 |

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- Definition Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of income tax expense (benefit) for continuing operations, discontinued operations, other comprehensive income, and items charged (credited) directly to shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65896914&loc=d3e38679-109324 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319 + Details
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
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