Restructuring - Schedule of Restructuring Reserve by Type of Cost (Details) $ in Millions	3 Months Ended
Mar. 31, 2018 USD ($)
Restructuring Reserve [Roll Forward]
December 31, 2017	$ 3.2
Charged to Earnings	14.4
Release of Liability	(1.7)
Payments Made	(4.2)
March 31, 2018	0.0
Severance and related expense
Restructuring Reserve [Roll Forward]
December 31, 2017	3.2
Charged to Earnings	11.0
Release of Liability	(1.7)
Payments Made	(0.8)
March 31, 2018	0.0
Other
Restructuring Reserve [Roll Forward]
December 31, 2017	0.0
Charged to Earnings	3.4
Release of Liability	0.0
Payments Made	(3.4)
March 31, 2018	$ 0.0

Restructuring Charges, Net of Release of Liability

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- Definition

Restructuring and Related Cost, Release of Liability

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

+ Details

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Details

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- Details

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