Restructuring Charges (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Jun. 29, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Beginning balance		$ 19.6	$ 24.0	$ 21.4
Additional charges		3.5	25.3	21.0
Payments		(14.3)	(29.4)	(18.8)
Non-cash adjustments		0.7	(0.3)	0.4
Ending balance		9.5	19.6	24.0
Restructuring charges	$ 12.2	3.5	26.3	21.0
CSCI
Restructuring Reserve [Roll Forward]
Restructuring charges		1.4	12.2	$ 17.4
Unallocated
Restructuring Reserve [Roll Forward]
Restructuring charges		$ 1.0	$ 10.1

Restructuring, Additional Charges

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- Definition

Restructuring Reserve Noncash Adjustments

+ References

No definition available.

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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/disclosureRef
-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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585

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- Definition

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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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

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