Restructuring - Schedule of Severance and Other Restructuring Accrual Activity (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2020
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019		$ 1.2
Restructuring charges	$ 12.9	42.1
Payments and other		(32.3)
Balance as of September 30, 2020	11.0	11.0
Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019		1.2
Restructuring charges		32.4
Payments and other		(23.4)
Balance as of September 30, 2020	10.2	10.2
Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019		0.0
Restructuring charges		9.7
Payments and other		(8.9)
Balance as of September 30, 2020	$ 0.8	0.8
Americas
Restructuring Reserve [Roll Forward]
Restructuring charges		28.1
Payments and other		(23.1)
Americas \| Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges		18.4
Payments and other		(14.2)
Americas \| Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges		9.7
Payments and other		(8.9)
EMEA
Restructuring Reserve [Roll Forward]
Restructuring charges		9.7
Payments and other		(6.0)
EMEA \| Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges		9.7
Payments and other		(6.0)
EMEA \| Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges		0.0
Payments and other		0.0
APAC
Restructuring Reserve [Roll Forward]
Restructuring charges		4.3
Payments and other		(3.2)
APAC \| Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges		4.3
Payments and other		(3.2)
APAC \| Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges		0.0
Payments and other		$ 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
-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/2009/role/commonPracticeRef
-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
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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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.

+ References

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