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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 29, 2013	Jun. 30, 2013	Dec. 29, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member]	Dec. 29, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Y	Nov. 15, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Prior Fiscal Year [Member]	Jun. 22, 2014 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Scenario, Forecast [Member]	Nov. 15, 2013 Second Quarter Fiscal 2014 Investment Tax Credit Award [Member] Scenario, Forecast [Member]	Jan. 06, 2010 Third Quarter Fiscal 2010 Investment Tax Credit Award [Member]	Nov. 15, 2013 Maximum [Member] Second Quarter Fiscal 2014 Investment Tax Credit Award [Member]
Income Tax Contingency [Line Items]
U.S. statutory tax rate	35.00%
48C Tax Credit Carryforward, Amount					$ 15		$ 15	$ 39	$ 30
Amount Of Qualified Equipment				100
Investment Credit Period Recognized				5
Income tax benefit related to award			3.7			5.2
Unrecognized tax benefits balance	20.0	2.7
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	18.0
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	0.7
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	20.0
Estimated change in unrecognized tax benefits in next 12 months	$ 1.4

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Amount of qualified manufacturing equipment required to fully utilize the investment credit received.

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Number of years over which the benefit of the investment tax credit will be recognized.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to investment tax credit.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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