Asset Disposition and Impairments (Details) - USD ($) $ in Millions		12 Months Ended
May 09, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment Assets Held-for-sale Disclosure [Abstract]
Proceeds from Sale of Property, Plant, and Equipment	$ 63.6
Loss on sale of assets and impairment charges	$ 47.1	$ 49.0	$ 3.7	$ (0.1)

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585

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