RESTRUCTURING CHARGES AND SEPARATION COSTS - Schedule of Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 86	$ 207	$ 197	$ 417
Operating segments \| Power
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	34	192	58	289
Operating segments \| Wind
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	0	15	52	117
Operating segments \| Electrification
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	22	0	49	17
Other
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	28	0	38	(6)
Cost of sales
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	14	148	92	268
Selling, general, and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	72	59	105	149
Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	74	48	144	159
Plant closures and associated costs and other asset write-downs
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	5	160	37	251
Acquisition/disposition net charges and other
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	8	(1)	17	7
Non-cash asset impairment, accelerated depreciation and other charges
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 14	$ 144	$ 56	$ 237