Goodwill and Other Assets Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 152.7	$ 154.3
Finite-Lived Intangible Assets, Accumulated Amortization	(79.7)	(94.3)
Intangible Assets, Net (Including Goodwill)	73.0	60.0
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	76.5	102.1
Finite-Lived Intangible Assets, Accumulated Amortization	(50.3)	(65.8)
Intangible Assets, Net (Including Goodwill)	26.2	36.3
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	76.2	52.2
Finite-Lived Intangible Assets, Accumulated Amortization	(29.4)	(28.5)
Intangible Assets, Net (Including Goodwill)	$ 46.8	$ 23.7