Discontinued Operations (Summary of Total Depreciation and Amortization, Fixed and Intangible Asset Impairments, and Capital Expenditures Related to AFI) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations [Abstract]
Depreciation and amortization	$ 11.4	$ 39.1	$ 46.6
Fixed and intangible asset impairments			15.4
Purchases of property, plant and equipment	$ (12.1)	$ (61.6)	$ (77.6)

Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760

Name:	us-gaap_DepreciationAndAmortizationDiscontinuedOperations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration