BUSINESS ACQUISITIONS, DISPOSITIONS, GOODWILL AND INTANGIBLE ASSETS - Goodwill (Details) $ in Millions	6 Months Ended
Jun. 30, 2020 USD ($)
Goodwill [Roll Forward]
Goodwill - Beginning Balance	$ 9,884
Foreign currency translation	(149)
Goodwill - Ending Balance	9,735
Operating Segments \| HVAC
Goodwill [Roll Forward]
Goodwill - Beginning Balance	5,351
Foreign currency translation	(44)
Goodwill - Ending Balance	5,307
Operating Segments \| Refrigeration
Goodwill [Roll Forward]
Goodwill - Beginning Balance	1,228
Foreign currency translation	(10)
Goodwill - Ending Balance	1,218
Operating Segments \| Fire & Security
Goodwill [Roll Forward]
Goodwill - Beginning Balance	3,305
Foreign currency translation	(95)
Goodwill - Ending Balance	$ 3,210

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 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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- 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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