v3.25.2
Corporate Debt and Other Borrowings, Net (Other Borrowings Outstanding) (Details) - Line of Credit
$ in Millions
Jun. 30, 2025
USD ($)
Revolving Credit Facility | Senior unsecured, revolving credit facility  
Line of Credit Facility [Line Items]  
Outstanding $ 0
Available 2,250
Revolving Credit Facility | Broker-dealer revolving credit facility  
Line of Credit Facility [Line Items]  
Outstanding 0
Available 1,000
Unsecured Debt | Unsecured, uncommitted lines of credit  
Line of Credit Facility [Line Items]  
Outstanding 0
Available 75
Unsecured Debt | Unsecured, uncommitted lines of credit  
Line of Credit Facility [Line Items]  
Outstanding 0
Available 50
Secured Debt | Secured, uncommitted lines of credit  
Line of Credit Facility [Line Items]  
Outstanding 0
Available 75
Secured Debt | Secured, uncommitted lines of credit  
Line of Credit Facility [Line Items]  
Outstanding 0
Secured Debt | Secured, uncommitted lines of credit  
Line of Credit Facility [Line Items]  
Outstanding $ 0