v3.26.1
Related Party Transactions (Details)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
May 05, 2022
item
Oct. 01, 2020
Jun. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Aug. 31, 2025
USD ($)
Related Party Transaction              
Related party notes receivable, net     $ 136 $ 136   $ 129  
Number of portfolios | item 2            
Mr. Icahn and affiliates              
Related Party Transaction              
Noncontrolling Interest in Variable Interest Entity     $ 591 $ 591   $ 908  
Percentage of assets under management     23.00% 23.00%   25.00%  
Holding Company Segment              
Related Party Transaction              
Redemption of investment funds       $ 40      
Brett Icahn              
Related Party Transaction              
Amount redeemed in accordance with manager agreement         $ 8    
Portfolio manager term 7 years 7 years          
Number of lump sum payment after term | item 1            
Brett Icahn | Maximum              
Related Party Transaction              
Amount redeemed in accordance with manager agreement       1      
TEB LLC              
Related Party Transaction              
Related party notes receivable, net             $ 136
Investment Income, Interest     $ 5 9      
Investment in funds              
Related Party Transaction              
Redemption of investment funds       240      
Investment in funds | Mr. Icahn and affiliates              
Related Party Transaction              
Redemption of investment funds       175      
Amount redeemed in accordance with manager agreement         208    
Expense sharing arrangement | Consolidated VIE              
Related Party Transaction              
Amount of transaction with related party       7 $ 6    
Brett Icahn              
Related Party Transaction              
Investment funds total fair value       $ 2   $ 4