v3.26.3
BUSINESS SEGMENT INFORMATION - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Segment revenues $ 3,787 $ 3,737 $ 11,127 $ 11,322
Reconciliation Of Revenue From Segments To Consolidated [Abstract]        
Total revenues 3,881 1,450 9,769 8,388
Investment expenses 39 44 125 120
Operating Segments | Retirement        
Segment Reporting [Line Items]        
Segment revenues 1,884 1,592 5,311 4,538
Operating Segments | Asset Management        
Segment Reporting [Line Items]        
Segment revenues 1,141 1,144 3,389 3,326
Operating Segments | Wealth Management        
Segment Reporting [Line Items]        
Segment revenues 582 499 1,667 1,430
Reconciliation Of Revenue From Segments To Consolidated [Abstract]        
Expense related to distribution fees 247 227 720 667
Corporate and Other        
Segment Reporting [Line Items]        
Segment revenues 433 737 1,506 2,723
Eliminations        
Segment Reporting [Line Items]        
Segment revenues (253) (235) (746) (695)
Eliminations | Investment Management and Other Fees        
Segment Reporting [Line Items]        
Segment revenues 51 44 146 130
Eliminations | AB Holding        
Reconciliation Of Revenue From Segments To Consolidated [Abstract]        
Investment expenses 47 39 131 115
Adjustments        
Reconciliation Of Revenue From Segments To Consolidated [Abstract]        
Variable annuity product features, excluding change in MRBs (24) (1,314) (1,835) (1,888)
Revenue Adjustments, Gain (Loss) On Investments (84) (1,170) (178) (1,255)
Revenue Adjustments, Other $ 202 $ 197 $ 655 $ 209