v3.26.3
ACQUISITIONS, GOODWILL, AND OTHER INTANGIBLE ASSETS - Narrative (Details)
3 Months Ended 8 Months Ended 9 Months Ended
Feb. 02, 2026
USD ($)
employee
property
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Mar. 31, 2026
Goodwill [Line Items]              
Increase in intangible assets         $ 3,616,000,000    
Amortization expense   $ 239,000,000 $ 61,000,000   $ 650,000,000 $ 177,000,000  
Prolec GE              
Goodwill [Line Items]              
Voting equity interest acquired 50.00% 50.00%   50.00% 50.00%   50.00%
Cash consideration transferred $ 5,254,000,000            
Purchase price consideration adjustment   $ 42,000,000          
Number of employees | employee 10,000            
Number of manufacturing sites | property 7            
Business acquisition, pre-tax gain $ 3,992,000,000       $ 3,992,000,000    
Goodwill, expected tax deductible amount $ 400,000,000            
Goodwill, measurement period reduction adjustment         209,000,000    
Actual revenue since acquisition date   944,000,000   $ 2,287,000,000      
Actual earnings since acquisition date   (5,000,000)   $ (171,000,000)      
Acquisition-related costs   $ 0     $ 44,000,000    
Prolec GE | United States              
Goodwill [Line Items]              
Number of manufacturing sites | property 5