GOODWILL - Changes in Carrying Amount of Goodwill by Segment (Detail) $ in Millions	9 Months Ended
Sep. 26, 2020 USD ($)
Goodwill [Roll Forward]
Goodwill beginning balance	$ 9,237.5
Acquisitions	634.2
Foreign currency translation	15.3
Goodwill ending balance	9,887.0
Tools & Storage
Goodwill [Roll Forward]
Goodwill beginning balance	5,161.8
Acquisitions	0.1
Foreign currency translation	(5.4)
Goodwill ending balance	5,156.5
Industrial
Goodwill [Roll Forward]
Goodwill beginning balance	1,995.5
Acquisitions	634.0
Foreign currency translation	9.2
Goodwill ending balance	2,638.7
Security
Goodwill [Roll Forward]
Goodwill beginning balance	2,080.2
Acquisitions	0.1
Foreign currency translation	11.5
Goodwill ending balance	$ 2,091.8

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
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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- 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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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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
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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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.

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