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- Definition

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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EQUITY METHOD INVESTMENTS (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
EQUITY METHOD INVESTMENTS (Details) - USD ($) $ in Millions	Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	$ 1,916				$ 1,916		$ 2,149
Equity method income (loss)	78		$ (1)		205	$ 44
Accounts payable and equipment project payables	9,541				9,541		8,602
Separation costs (benefits)	$ 43		27		122	(64)
China XD Electric
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership interest disposed of	3.00%	2.00%
Equipment \| Cost of sales
Schedule of Equity Method Investments [Line Items]
Separation costs (benefits)				$ (136)		(136)
Equipment \| Renewable energy tax equity investments \| Cost of sales
Schedule of Equity Method Investments [Line Items]
Separation costs (benefits)				$ (136)
Aero Alliance
Schedule of Equity Method Investments [Line Items]
Purchases of products and services	$ 206		131		498	494
Aero Alliance \| Related Party
Schedule of Equity Method Investments [Line Items]
Accounts payable and equipment project payables	91				91		24
Operating segments \| Power
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	925				925		919
Equity method income (loss)	19		(11)		25	29
Operating segments \| Wind
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	32				32		49
Equity method income (loss)	0		0		0	1
Operating segments \| Electrification
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	463				463		743
Equity method income (loss)	57		36		161	78
Corporate
Schedule of Equity Method Investments [Line Items]
Equity method investment balance	495				495		$ 438
Equity method income (loss)	$ 2		$ (26)		$ 19	$ (64)