Business Description, Organization and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Ownership Structure of AllianceBernstein

As of March 31, 2018, the ownership structure of AB, expressed as a percentage of general and limited partnership interests, is as follows:

AXA and its subsidiaries	63.0	%
AB Holding	35.8
Unaffiliated holders	1.2
	100.0	%