BUSINESS SEGMENTS - Changes in Goodwill (Detail) $ in Millions	3 Months Ended
Mar. 29, 2019 USD ($)
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 832.0
Acquisition related	0.2
Foreign currency translation	2.7
Goodwill, Ending Balance	834.9
Network and Security Solutions [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	472.7
Acquisition related	0.2
Foreign currency translation	1.1
Goodwill, Ending Balance	474.0
Electrical and Electronic Solutions [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	180.9
Acquisition related	0.0
Foreign currency translation	0.1
Goodwill, Ending Balance	181.0
Utility Power Solutions [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	178.4
Acquisition related	0.0
Foreign currency translation	1.5
Goodwill, Ending Balance	$ 179.9

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 25
-Paragraph 16
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