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Long-term Incentive Compensation Plans - Narrative (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Employees and Eligible Directors | AB Holding Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted AB holding unit awards to employees (in shares)	1.0	0.9

X

- Definition

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.

+ References

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X

- Definition

Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

+ References

No definition available.

+ Details

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