EMPLOYEE BENEFIT PLANS - Assumptions (Details)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Rates of compensation increase: Benefit obligation (as a percent)	5.96%	5.97%
Rates of compensation increase: Periodic cost (as a percent)	6.37%	6.33%
Expected long-term rates of return on pension plan assets (periodic cost) (as a percent)	6.25%	6.25%
Following year	5.40%	5.10%
Ultimate rate to which cost increase is assumed to decline	3.90%	4.00%
Equitable Financial QP
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Benefits obligations (aggregate methodology) (as a percent)	5.13%	2.55%
Equitable Excess Retirement Plan
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Benefits obligations (aggregate methodology) (as a percent)	5.09%	2.47%
MONY Life Retirement Income Security Plan for Employees
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Benefits obligations (aggregate methodology) (as a percent)	5.22%	2.78%
AB Qualified Retirement Plan
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	5.50%	2.55%
Cash balance interest crediting rate for pre-April 1, 2012 accruals
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	4.00%	4.00%
Cash balance interest crediting rate for post-April 1, 2012 accruals
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	0.25%	0.50%
Minimum
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	4.84%	1.18%
Minimum \| Post-retirement Plans
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Benefits obligations (aggregate methodology) (as a percent)	5.07%	2.43%
Periodic cost (as a percent)	2.71%	2.34%
Minimum \| Other defined benefit plans
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	4.93%	2.05%
Maximum
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	5.20%	2.78%
Maximum \| Post-retirement Plans
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Benefits obligations (aggregate methodology) (as a percent)	5.20%	2.72%
Periodic cost (as a percent)	4.58%	2.52%
Maximum \| Other defined benefit plans
Weighted Average Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Periodic cost (as a percent)	5.22%	2.78%

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920

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- Definition

Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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- Definition

Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

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- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

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