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Business Description, Organization and Basis of Presentation (Tables)
9 Months Ended
Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Ownership Structure of Alliance Bernstein
As of September 30, 2025, the ownership structure of AB, expressed as a percentage of general and limited partnership interests, was as follows:
EQH and its subsidiaries68.5 %
AB Holding30.8 
Unaffiliated holders0.7 
100.0 %