Discontinued Operations and Divestitures - Components of Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 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	$ 0.0	$ 74.8	$ 18.6	$ 235.4
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	0.0	65.1	18.1	198.9
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)	0.0	9.7	0.5	36.5
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	0.0	0.2	(7.1)	0.3
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period	0.0	1.4	1.5	2.3
Income (Loss) from Discontinued Operations, Net of Tax	0.0	1.6	(5.6)	2.6
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax	0.0	(392.4)	(4.8)	(400.4)
Discontinued Operation, Tax (Expense) Benefit from Provision for (Gain) Loss on Disposal	0.0	12.3	0.0	14.7
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax	0.0	$ (380.1)	(4.8)	$ (385.7)
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents	0.0		0.0		$ 7.0
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net	0.0		0.0		28.8
Disposal Group, Including Discontinued Operation, Inventory, Current	0.0		0.0		30.1
Disposal Group, Including Discontinued Operation, Other Current Assets	0.9		0.9		14.7
Assets of Disposal Group, Including Discontinued Operation, Current	0.9		0.9		80.6
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	15.6		15.6		18.5
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets	0.0		0.0		6.4
Disposal Group, Including Discontinued Operation, Accounts Payable, Current	0.0		0.0		12.2
Disposal Group, Including Discontinued Operations, Employee Compensation and Benefits	0.0		0.0		11.3
Disposal Group, Including Discontinued Operation, Other Current Liabilities	3.5		3.5		11.6
Liabilities of Disposal Group, Including Discontinued Operation, Current	3.5		3.5		35.1
Disposal Group, Including Discontinued Operations, Long Term Debt	0.0		0.0		4.0
Disposal Group, Including Discontinued Operation, Pension Plan Benefit Obligation	0.0		0.0		2.5
Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent	0.5		0.5		6.5
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	15.6		15.6		24.9
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities, Noncurrent	$ 0.5		$ 0.5		$ 0.0