Long-term Incentive Compensation Plans (Details) - shares shares in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Employees and Eligible Directors \| AB Holding Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted AB Holding Unit awards granted to employees and Eligible Directors (in shares)	0.3	0.7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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