GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 14,757	$ 15,242
Accumulated amortization	(9,061)	(9,137)
Net	5,695	6,105
Total other intangible assets, net	5,695	6,105
Operating segments | Aerospace
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	4,518	4,748
Operating segments | Renewable Energy
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	149	183
Operating segments | Power
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	858	958
Corporate and eliminations
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Total other intangible assets, net	169	216
Customer-related
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	6,201	5,991
Accumulated amortization	(3,851)	(3,453)
Net	$ 2,351	2,538
Customer-related | Minimum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	3 years
Customer-related | Maximum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	23 years
Patents and technology
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 5,924	5,888
Accumulated amortization	(3,372)	(3,202)
Net	$ 2,553	2,686
Patents and technology | Minimum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	5 years
Patents and technology | Maximum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	15 years
Capitalized software
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 2,356	2,979
Accumulated amortization	(1,639)	(2,186)
Net	$ 717	793
Capitalized software | Minimum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	3 years
Capitalized software | Maximum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	10 years
Trademarks & other
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 276	384
Accumulated amortization	(200)	(295)
Net	$ 75	$ 88
Trademarks & other | Minimum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	3 years
Trademarks & other | Maximum
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Useful lives (in years)	25 years