v3.26.1
REVENUE (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Revenues $ 1,047 $ 931 $ 2,037 $ 1,885
Energy        
Disaggregation of Revenue [Line Items]        
Revenues 228 200 446 380
Infrastructure        
Disaggregation of Revenue [Line Items]        
Revenues 357 315 712 625
Private equity        
Disaggregation of Revenue [Line Items]        
Revenues 88 76 168 147
Real estate        
Disaggregation of Revenue [Line Items]        
Revenues 236 235 465 527
Credit        
Disaggregation of Revenue [Line Items]        
Revenues 138 105 246 206
Base management and advisory fees | United States        
Disaggregation of Revenue [Line Items]        
Revenues 334 321 638 672
Base management and advisory fees | United States | Energy        
Disaggregation of Revenue [Line Items]        
Revenues 29 32 57 60
Base management and advisory fees | United States | Infrastructure        
Disaggregation of Revenue [Line Items]        
Revenues 46 50 88 94
Base management and advisory fees | United States | Private equity        
Disaggregation of Revenue [Line Items]        
Revenues 21 26 44 50
Base management and advisory fees | United States | Real estate        
Disaggregation of Revenue [Line Items]        
Revenues 130 138 264 316
Base management and advisory fees | United States | Credit        
Disaggregation of Revenue [Line Items]        
Revenues 108 75 185 152
Base management and advisory fees | United Kingdom        
Disaggregation of Revenue [Line Items]        
Revenues 238 184 447 387
Base management and advisory fees | United Kingdom | Energy        
Disaggregation of Revenue [Line Items]        
Revenues 68 44 128 87
Base management and advisory fees | United Kingdom | Infrastructure        
Disaggregation of Revenue [Line Items]        
Revenues 71 51 129 97
Base management and advisory fees | United Kingdom | Private equity        
Disaggregation of Revenue [Line Items]        
Revenues 21 20 47 41
Base management and advisory fees | United Kingdom | Real estate        
Disaggregation of Revenue [Line Items]        
Revenues 75 65 137 154
Base management and advisory fees | United Kingdom | Credit        
Disaggregation of Revenue [Line Items]        
Revenues 3 4 6 8
Base management and advisory fees | Canada        
Disaggregation of Revenue [Line Items]        
Revenues 221 196 429 380
Base management and advisory fees | Canada | Energy        
Disaggregation of Revenue [Line Items]        
Revenues 52 61 102 108
Base management and advisory fees | Canada | Infrastructure        
Disaggregation of Revenue [Line Items]        
Revenues 111 91 224 188
Base management and advisory fees | Canada | Private equity        
Disaggregation of Revenue [Line Items]        
Revenues 34 18 53 33
Base management and advisory fees | Canada | Real estate        
Disaggregation of Revenue [Line Items]        
Revenues 6 6 12 12
Base management and advisory fees | Canada | Credit        
Disaggregation of Revenue [Line Items]        
Revenues 18 20 38 39
Base management and advisory fees | Other        
Disaggregation of Revenue [Line Items]        
Revenues 126 114 265 213
Base management and advisory fees | Other | Energy        
Disaggregation of Revenue [Line Items]        
Revenues 38 27 75 52
Base management and advisory fees | Other | Infrastructure        
Disaggregation of Revenue [Line Items]        
Revenues 42 43 97 86
Base management and advisory fees | Other | Private equity        
Disaggregation of Revenue [Line Items]        
Revenues 12 12 24 23
Base management and advisory fees | Other | Real estate        
Disaggregation of Revenue [Line Items]        
Revenues 25 26 52 45
Base management and advisory fees | Other | Credit        
Disaggregation of Revenue [Line Items]        
Revenues 9 6 17 7
Incentive fees        
Disaggregation of Revenue [Line Items]        
Revenues 128 116 258 233
Incentive fees | Energy        
Disaggregation of Revenue [Line Items]        
Revenues 41 36 84 73
Incentive fees | Infrastructure        
Disaggregation of Revenue [Line Items]        
Revenues 87 80 174 160
Incentive fees | Private equity        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 0 0
Incentive fees | Real estate        
Disaggregation of Revenue [Line Items]        
Revenues 0 0 0 0
Incentive fees | Credit        
Disaggregation of Revenue [Line Items]        
Revenues $ 0 $ 0 $ 0 $ 0