RESTRUCTURING CHARGES AND SEPARATION COSTS - Schedule of Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 9	$ 43	$ 103	$ 111
Operating segments \| Power
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(14)	12	0	23
Operating segments \| Electrification
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	20	25	82	27
Operating segments \| Wind
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	1	1	7	52
Other
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	2	5	14	9
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(1)	24	11	78
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	9	19	92	33
Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(9)	29	27	70
Plant closures and associated costs and other asset write-downs
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(2)	9	0	31
Acquisition/disposition net charges and other
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	20	5	76	10
Non-cash asset impairment, accelerated depreciation and other charges
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 24	$ 14	$ 95	$ 42