GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Goodwill [Line Items]
Goodwill	$ 13,304		$ 13,385
Increase (decrease) in intangible assets	(148)
Amortization of intangible assets	145	$ 140
Operating segments | Aerospace
Goodwill [Line Items]
Goodwill	8,902		$ 8,948
Operating segments | Additive | Aerospace
Goodwill [Line Items]
Goodwill	$ 244