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Fair Value Measurements (Fair Value Measurements, Nonrecurring) (Details) - Fair Value, Measurements, Nonrecurring [Member] - Fair Value, Inputs, Level 3 [Member] - Changes Measurement [Member] - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Impairment of property, plant and equipment held for use or disposal (Level 3) | $ 0.5 | $ 0.2 | $ 6.0
Goodwill impairment (Level 3) | 0.0 | 0.0 | 8.7
IPRD (Level 3) | 2.2 | 3.8 | 0.9
Assets, Fair Value Disclosure | $ 2.7 | $ 4.0 | $ 15.6

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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