v3.26.3
EQUITY METHOD INVESTMENTS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Mar. 31, 2026
Feb. 02, 2026
Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]              
Equity method investment balance $ 1,426   $ 1,426       $ 1,834
Equity method investment income (loss) 31 $ 78 103 $ 205      
Accounts payable and equipment project payables $ 10,786   $ 10,786       8,809
Prolec GE              
Schedule of Equity Method Investments [Line Items]              
Voting equity interest acquired 50.00%   50.00%   50.00% 50.00%  
Aero Alliance              
Schedule of Equity Method Investments [Line Items]              
Purchases of products and services $ 208 206 $ 685 498      
Aero Alliance | Related Party              
Schedule of Equity Method Investments [Line Items]              
Accounts payable and equipment project payables 70   70       55
Operating segments | Power              
Schedule of Equity Method Investments [Line Items]              
Equity method investment balance 953   953       922
Equity method investment income (loss) 18 19 59 25      
Operating segments | Electrification              
Schedule of Equity Method Investments [Line Items]              
Equity method investment balance 86   86       479
Equity method investment income (loss) 1 57 55 161      
Operating segments | Wind              
Schedule of Equity Method Investments [Line Items]              
Equity method investment balance 21   21       30
Equity method investment income (loss) 0 0 0 0      
Other              
Schedule of Equity Method Investments [Line Items]              
Equity method investment balance 366   366       $ 403
Equity method investment income (loss) $ 11 $ 2 $ (11) $ 19