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ACQUISITIONS AND DIVESTITURES - Narrative (Details) € in Millions				3 Months Ended	6 Months Ended
	Jun. 03, 2024 USD ($)	Aug. 25, 2023 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2024 EUR (€)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Goodwill							$ 20,824,000,000	$ 18,049,000,000
Pre-tax gain on sale of business							$ 0
CAES Systems Holdings LLC \| Forecast
Business Acquisition [Line Items]
Payments to acquire businesses, gross					$ 1,900,000,000
Carrier Global Corporation's Global Access Solutions Business
Business Acquisition [Line Items]
Percentage acquired	100.00%
Consideration amount	$ 4,913,000,000
Goodwill	$ 2,878,000,000
Carrier Global Corporation's Global Access Solutions Business \| Minimum
Business Acquisition [Line Items]
Intangible asset, useful life							10 years
Carrier Global Corporation's Global Access Solutions Business \| Maximum
Business Acquisition [Line Items]
Intangible asset, useful life							20 years
Civitanavi Systems S.p.A. \| Forecast
Business Acquisition [Line Items]
Payments to acquire businesses, gross \| €				€ 200
Percentage acquired				95.00%
SCADAfence
Business Acquisition [Line Items]
Percentage acquired		100.00%
Consideration amount		$ 52,000,000
Intangible assets acquired							$ 17,000,000
Goodwill							42,000,000
Compressor Controls Corporation
Business Acquisition [Line Items]
Percentage acquired			100.00%
Consideration amount			$ 673,000,000
Intangible assets acquired							282,000,000
Goodwill							$ 351,000,000
Compressor Controls Corporation \| Customer relationships
Business Acquisition [Line Items]
Intangible asset, useful life							15 years
Air Products \| Forecast
Business Acquisition [Line Items]
Payments to acquire businesses, gross						$ 1,800,000,000