Segment Reporting (Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	$ 1,884.2	$ 1,769.5
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	594.6	619.0
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	344.8	369.2
Finland
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	145.9	165.2
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	210.4	143.6
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	130.0	150.0
Denmark
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	119.6	0.0
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	106.7	88.3
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	172.3	165.9
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment and amortizable intangible assets	$ 59.9	$ 68.3