Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring (benefits) charges	$ (1.1)	$ 4.4	$ 35.6	$ 2.3
2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring (benefits) charges			35.6
2019 Restructuring Plan \| Severance
Restructuring Cost and Reserve [Line Items]
Restructuring (benefits) charges	(0.3)		21.8
2019 Restructuring Plan \| Facility consolidations
Restructuring Cost and Reserve [Line Items]
Restructuring (benefits) charges			2.1
2019 Restructuring Plan \| Contract terminations
Restructuring Cost and Reserve [Line Items]
Restructuring (benefits) charges	$ (0.8)		$ 11.7