Income Taxes (Details) - USD ($) $ in Millions		3 Months Ended
	Jan. 01, 2017	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Tax Expense		$ (17.6)	$ (33.2)
Income (Loss) before Income Taxes and Equity Income of Unconsolidated Entities		54.2	$ 90.3
Discrete tax benefit, reduction of long-term deferred tax liability	$ (39.1)	(2.0)
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward				$ 351.0
Minimum
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward		285.0
Maximum
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward		335.0
Retained Earnings [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward		$ 107.0