Debt (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2026 USD ($) lineOfCredit financialInstitution	Dec. 31, 2025 USD ($) lineOfCredit financialInstitution
EQH
Debt Instrument [Line Items]
Amount outstanding	$ 580,000,000.0	$ 810,000,000.0
Weighted average interest rates	3.70%	3.70%
Average daily borrowings	$ 509,200,000	$ 392,200,000
Weighted average interest rates on average daily borrowings	3.60%	4.20%
Revolving Credit Facility | EQH
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 900,000,000.0
Revolving Credit Facility | EQH Uncommitted Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	300,000,000.0
Amount outstanding	0	$ 0
Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	800,000,000.0
Maximum incremental increase	200,000,000.0
Amount outstanding	0	0
Proceeds from debt, net	0	0
Line of Credit | Subsidiaries
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 100,000,000.0	$ 150,000,000.0
Number of uncommitted lines of credit | lineOfCredit	2	3
Number of financial institutions offering lines of credit | financialInstitution	2	3
Number of financial institutions with stated limits | lineOfCredit	1	2
Equitable Holdings, Inc. And Subsidiaries
Debt Instrument [Line Items]
Proceeds from debt, net	$ 0	$ 0
Commercial Paper
Debt Instrument [Line Items]
Weighted average interest rates on average daily borrowings	3.80%	4.40%
Short-term debt, average outstanding amount	$ 187,500,000	$ 199,500,000
Short-term debt	$ 0	$ 0
Uncommited Lines of Credit
Debt Instrument [Line Items]
Weighted average interest rates	6.80%	7.30%
Short-term debt, average outstanding amount	$ 800,000	$ 500,000
Short-term debt	$ 0	$ 0