v3.26.1
SEGMENT AND GEOGRAPHICAL INFORMATION - Revenue and Assets by Segment (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2026
USD ($)
segment
Jun. 30, 2025
USD ($)
Mar. 31, 2026
USD ($)
Segment Reporting [Line Items]      
Number of reportable segments | segment 3    
Revenues $ 511 $ 605  
Employee compensation and benefits 314 372  
Segment profit 154 188  
Corporate expenses 433 515  
Other (income) expense, net (8) (8)  
Income before provision for income taxes 86 98  
Total assets 3,717   $ 4,309
Operating Segments      
Segment Reporting [Line Items]      
Total assets 1,862   1,879
Operating Segments | Corporate Finance      
Segment Reporting [Line Items]      
Revenues 303 398  
Employee compensation and benefits 161 220  
Non-compensation expense by segment 53 51  
Segment profit 89 127  
Total assets 1,436   1,477
Operating Segments | Financial Restructuring      
Segment Reporting [Line Items]      
Revenues 119 128  
Employee compensation and benefits 64 72  
Non-compensation expense by segment 13 13  
Segment profit 42 43  
Total assets 194   179
Operating Segments | Financial Advisory Services      
Segment Reporting [Line Items]      
Revenues 89 79  
Employee compensation and benefits 50 46  
Non-compensation expense by segment 16 15  
Segment profit 23 18  
Total assets 232   223
Segment Reporting, Reconciling Item, Corporate Nonsegment      
Segment Reporting [Line Items]      
Corporate expenses 76 98  
Total assets 1,855   $ 2,430
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment      
Segment Reporting [Line Items]      
Other (income) expense, net $ (8) $ (8)