ACQUISITIONS, DIVESTITURES, AND ASSETS AND LIABILITIES HELD FOR SALE - Narrative (Details) $ in Millions								6 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($)	Aug. 30, 2024 USD ($)	Aug. 19, 2024 USD ($)	Jun. 03, 2024 USD ($)	Aug. 25, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jan. 18, 2022 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) entity	Jun. 30, 2024 USD ($)	Mar. 31, 2023 USD ($)
Business Acquisition [Line Items]
Goodwill									$ 21,825	$ 18,049	$ 17,497
Proceeds from sales of businesses, net of fees paid									$ 0	$ 4	$ 0
Minimum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									2 years
Maximum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									20 years
Personal Protective Equipment Business
Business Acquisition [Line Items]
Disposal group, including discontinued operations, valuation allowance									$ 219
Personal Protective Equipment Business | Forecast
Business Acquisition [Line Items]
Proceeds from sales of businesses, net of fees paid								$ 1,325
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Russian Domiciled Entities
Business Acquisition [Line Items]
Divestiture, number of business entities sold | entity											3
Proceeds from sales of businesses, net of fees paid											$ 1
Pretax gain on disposition of business											$ 22
Air Products' Liquified Natural Gas Process Technology And Equipment Business (LNG)
Business Acquisition [Line Items]
Percent acquired	100.00%
Consideration transferred	$ 1,837
Goodwill									876
Current assets									79
Intangible assets									931
Other noncurrent assets									53
Current liabilities									(100)
Noncurrent liabilities									(2)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									$ 961
Air Products' Liquified Natural Gas Process Technology And Equipment Business (LNG) | Minimum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									4 years
Air Products' Liquified Natural Gas Process Technology And Equipment Business (LNG) | Maximum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									20 years
CAES Systems Holdings LLC
Business Acquisition [Line Items]
Percent acquired		100.00%
Consideration transferred		$ 1,930
Goodwill									$ 553
Current assets									324
Intangible assets									1,205
Other noncurrent assets									182
Current liabilities									(124)
Noncurrent liabilities									(167)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									$ 1,420
CAES Systems Holdings LLC | Minimum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									2 years
CAES Systems Holdings LLC | Maximum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									15 years
Civitanavi Systems S.p.A.
Business Acquisition [Line Items]
Consideration transferred			$ 200
Intangible assets acquired									$ 75
Goodwill									107
Carrier Global Corporation's Global Access Solutions Business
Business Acquisition [Line Items]
Percent acquired				100.00%
Consideration transferred				$ 4,913
Goodwill									2,827
Current assets									247
Intangible assets									2,050
Other noncurrent assets									20
Current liabilities									(140)
Noncurrent liabilities									(6)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									$ 2,171
Carrier Global Corporation's Global Access Solutions Business | Minimum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									10 years
Carrier Global Corporation's Global Access Solutions Business | Maximum
Business Acquisition [Line Items]
Finite lived intangible assets estimated useful lives									20 years
SCADAfence
Business Acquisition [Line Items]
Percent acquired					100.00%
Consideration transferred					$ 52
Intangible assets acquired	17
Goodwill	$ 42
Compressor Controls Corporation
Business Acquisition [Line Items]
Percent acquired						100.00%
Consideration transferred						$ 673
Intangible assets acquired												$ 282
Goodwill												$ 351
US Digital Design, Inc.
Business Acquisition [Line Items]
Percent acquired							100.00%
Consideration transferred							$ 186
Intangible assets acquired													$ 53
Goodwill													$ 129