v3.26.1
SEGMENT INFORMATION - Segment Revenue by Business Unit (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Total revenues $ 11,104 $ 9,111 $ 20,442 $ 17,143
Operating segments, inclusive of intersegment sales        
Segment Reporting [Line Items]        
Total revenues 11,141 9,191 20,504 17,330
Operating segments, inclusive of intersegment sales | Power        
Segment Reporting [Line Items]        
Total revenues 5,477 4,785 10,449 9,234
Operating segments, inclusive of intersegment sales | Power | Gas Power        
Segment Reporting [Line Items]        
Total revenues 4,427 3,911 8,493 7,516
Operating segments, inclusive of intersegment sales | Power | Nuclear Power        
Segment Reporting [Line Items]        
Total revenues 817 649 1,575 1,310
Operating segments, inclusive of intersegment sales | Power | Hydro Power        
Segment Reporting [Line Items]        
Total revenues 233 225 382 407
Operating segments, inclusive of intersegment sales | Electrification        
Segment Reporting [Line Items]        
Total revenues 3,637 2,162 6,597 4,001
Operating segments, inclusive of intersegment sales | Electrification | Power Transmission        
Segment Reporting [Line Items]        
Total revenues 1,877 759 3,256 1,451
Operating segments, inclusive of intersegment sales | Electrification | Grid Systems Integration        
Segment Reporting [Line Items]        
Total revenues 806 579 1,497 968
Operating segments, inclusive of intersegment sales | Electrification | Power Conversion & Storage        
Segment Reporting [Line Items]        
Total revenues 539 411 1,016 792
Operating segments, inclusive of intersegment sales | Electrification | Grid Automation & Software        
Segment Reporting [Line Items]        
Total revenues 416 412 827 790
Operating segments, inclusive of intersegment sales | Wind        
Segment Reporting [Line Items]        
Total revenues 2,026 2,245 3,459 4,095
Operating segments, inclusive of intersegment sales | Wind | Onshore Wind        
Segment Reporting [Line Items]        
Total revenues 1,721 2,020 2,908 3,665
Operating segments, inclusive of intersegment sales | Wind | Offshore Wind        
Segment Reporting [Line Items]        
Total revenues $ 305 $ 225 $ 551 $ 430