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EMPLOYEE BENEFIT PLANS (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended
Dec. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
AB Retirement Plan          
Defined Benefit Plan Disclosure [Line Items]          
Settlements $ 35     $ 59  
Additional fund to cover obligations   $ 2   2  
General and administration expense       21  
Net Periodic Pension Expense          
Defined Benefit Plan Disclosure [Line Items]          
Service cost   9 $ 2 24 $ 6
Interest cost   28 30 84 89
Expected return on assets   (33) (36) (100) (110)
Prior period service cost amortization   (1) (1) (2) (2)
Net amortization   20 15 43 44
Impact of settlement   (3) 0 18 0
Net periodic pension expense   20 $ 10 67 $ 27
Net Periodic Pension Expense | AB Retirement Plan          
Defined Benefit Plan Disclosure [Line Items]          
Impact of settlement   $ 3   $ 18