Discontinued Operations and Divestitures - Components of Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 28, 2015	Sep. 27, 2014	Mar. 29, 2014	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	$ 18.6		$ 82.6
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	18.1		68.4
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)	0.5		14.2
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	(5.6)		(1.7)
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period	1.3		0.4
Income (Loss) from Discontinued Operations, Net of Tax	(4.3)		(1.3)
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax	0		(8.0)
Discontinued Operation, Tax (Expense) Benefit from Provision for (Gain) Loss on Disposal	0	12.3	2.4
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax	0	(380.1)	(5.6)
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents	0.2			7.0
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	1.6			28.8
Disposal Group, Including Discontinued Operation, Inventory	0			30.1
Disposal Group, Including Discontinued Operation, Other Current Assets	7.0			14.7
Assets of Disposal Group, Including Discontinued Operation, Current	8.8			80.6
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	18.0			18.5
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets	7.9			6.4
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	2.1			12.2
Disposal Group, Including Discontinued Operations, Employee Compensation and Benefits	4.1			11.3
Disposal Group, Including Discontinued Operation, Other Current Liabilities	5.3			11.6
Liabilities of Disposal Group, Including Discontinued Operation, Current	11.5			35.1
Disposal Group, Including Discontinued Operations, Long Term Debt	3.9			4.0
Disposal Group, Including Discontinued Operation, Pension Plan Benefit Obligation	0.1			2.5
Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent	4.0			6.5
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	$ 25.9			$ 24.9

Accrued employee compensation and benefits attributable to the disposal group

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Long term debt attributable to the disposal group.

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Amount, before tax, of loss recognized for the write-down to fair value, less cost to sell, of a disposal group. Includes before tax gain for a subsequent increase in fair value (less cost to sell) up to the cumulative loss previously recognized through write-downs.

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Amount after tax of loss recognized for the write-down to fair value, less cost to sell, of a disposal group. Includes after tax gain for a subsequent increase in fair value (less cost to sell) up to the cumulative loss previously recognized through write-downs.

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Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

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Tax benefit from provision recognizing a loss for initial, or subsequent, write-down to fair value (less cost to sell) of a of a disposal group that is classified as a component of the entity, which remains unsold as of the reporting date. May include a tax on the (gain) for the recognition of a subsequent increase in fair value (less cost to sell), but not in excess of the cumulative loss previously recognized through write-downs.

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Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

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Amount classified as accounts payable attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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Amount of costs of goods sold attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of gross profit attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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Amount classified as defined benefit plan benefit obligations attributable to disposal group held for sale or disposed of.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Amount classified as inventory attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer.

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