Restructuring and Acquisition-Related Costs (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Restructuring Reserve [Roll Forward]
Restructuring reserve	$ 4.0	$ 0.3
Charges	17.1	31.4
Cash utilization	(15.0)	(5.5)
Non-cash utilization		(23.9)
Restructuring reserve	6.1	2.3
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve	2.4	0.3
Charges	8.2	2.0
Cash utilization	(7.9)	(0.4)
Non-cash utilization		0.0
Restructuring reserve	2.7	1.9
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve	1.6	0.0
Charges	8.9	5.5
Cash utilization	(7.1)	(5.1)
Non-cash utilization		0.0
Restructuring reserve	3.4	0.4
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve	0.0	0.0
Charges	0.0	23.9
Cash utilization	0.0	0.0
Non-cash utilization		(23.9)
Restructuring reserve	$ 0.0	$ 0.0

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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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.

+ References

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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://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 420
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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