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Goodwill and Other Identifiable Intangible Assets - Changes in Carrying Amount of Goodwill by Segment (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 2,178.1
Acquisitions/divestitures	383.2
Foreign currency translation/other	(1.5)
Ending Balance	2,559.8
Enclosures
Goodwill [Roll Forward]
Beginning Balance	414.4
Acquisitions/divestitures	11.5
Foreign currency translation/other	(1.7)
Ending Balance	424.2
Electrical & Fastening Solutions
Goodwill [Roll Forward]
Beginning Balance	1,052.0
Acquisitions/divestitures	371.7
Foreign currency translation/other	0.0
Ending Balance	1,423.7
Electrical & Fastening Solutions
Goodwill [Roll Forward]
Beginning Balance	711.7
Acquisitions/divestitures	0.0
Foreign currency translation/other	0.2
Ending Balance	$ 711.9

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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- Definition

Amount of increase (decrease), classified as other, of an asset representing the 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

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the 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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