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Goodwill and Identifiable Intangible Assets - Schedule of Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,294.9
Goodwill from acquisitions	23.1
Foreign currency translation	(23.7)
Goodwill, ending balance	1,294.3
Performance Coatings
Goodwill [Roll Forward]
Goodwill, beginning balance	1,211.3
Goodwill from acquisitions	23.1
Foreign currency translation	(22.1)
Goodwill, ending balance	1,212.3
Mobility Coatings
Goodwill [Roll Forward]
Goodwill, beginning balance	83.6
Goodwill from acquisitions	0.0
Foreign currency translation	(1.6)
Goodwill, ending balance	$ 82.0

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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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.

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