Debt (Details)		3 Months Ended	12 Months Ended
	Dec. 31, 2024 USD ($) lineOfCredit	Sep. 30, 2024 lineOfCredit	Dec. 31, 2024 USD ($) lineOfCredit financialInstitution	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 01, 2024 USD ($)
Short-term Debt [Line Items]
Proceeds from debt, net				$ 164,316,000	$ 235,000,000
EQH
Short-term Debt [Line Items]
Amounts outstanding under credit facility	$ 710,000,000.0		$ 710,000,000.0	$ 900,000,000
Line of credit facility interest rate			4.30%	5.30%
Average daily borrowings			$ 494,200,000	$ 743,100,000
Weighted average interest rates on average daily borrowings			5.20%	4.90%
Revolving Credit Facility | EQH
Short-term Debt [Line Items]
Credit facility, maximum borrowing capacity	900,000,000.0		$ 900,000,000.0
Revolving Credit Facility | EQH Uncommitted Facility
Short-term Debt [Line Items]
Credit facility, maximum borrowing capacity						$ 300,000,000
Amounts outstanding under credit facility	0		0	$ 0
Credit Facility
Short-term Debt [Line Items]
Credit facility, maximum borrowing capacity	800,000,000.0		800,000,000.0
Credit facility, possible aggregate incremental limit increase	200,000,000		200,000,000
Amounts outstanding under credit facility	0		0	0
Proceeds from debt, net			0	$ 0
Credit Facility | SCB LLC
Short-term Debt [Line Items]
Credit facility, maximum borrowing capacity	$ 150,000,000.0		$ 150,000,000.0
Number of uncommitted lines of credit | lineOfCredit	5		3
Number of uncommitted lines of credit, matured | lineOfCredit		2
Number of financial institutions offering lines of credit | financialInstitution			3
Number of financial institutions with stated limits | lineOfCredit			2
Equitable Holdings, Inc. And Subsidiaries
Short-term Debt [Line Items]
Weighted average interest rates on average daily borrowings				4.60%
Average daily borrowings				$ 3,600,000
Commercial Paper
Short-term Debt [Line Items]
Weighted average interest rates on average daily borrowings			5.40%	5.20%
Average daily borrowings			$ 268,200,000	$ 267,600,000
Short-term debt	$ 0		$ 0	$ 254,300,000
Interest rate on commercial paper outstanding				5.40%
Uncommitted Lines of Credit
Short-term Debt [Line Items]
Line of credit facility interest rate			8.50%	7.80%
Average daily borrowings			$ 600,000	$ 1,100,000
Short-term debt	$ 0		$ 0	$ 0