EQUITY METHOD INVESTMENTS (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	$ 2,376				$ 2,376		$ 3,555
Equity method income (loss)	(1)			$ (4)	44	$ (66)
Provision (benefit) for income taxes	(23)			169	310	222
Separation costs (benefits)	27				(64)
Equipment | Cost of equipment
Schedule of Equity Method Investments [Line Items]
Separation costs (benefits)		$ (136)			(136)
Operating segments | Power
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	1,006				1,006		1,003
Equity method income (loss)	(11)			23	29	68
Operating segments | Wind
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	47				47		46
Equity method income (loss)	0			0	1	(3)
Operating segments | Electrification
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	848				848		788
Equity method income (loss)	36			24	78	61
Corporate and other
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	475				475		1,718
Equity method income (loss)	$ (26)			(51)	$ (64)	(192)
Corporate and other | Renewable energy tax equity investments
Schedule of Equity Method Investments [Line Items]
Equity method investment balance							$ 1,244
Provision (benefit) for income taxes			$ (53)	$ (44)		$ (144)