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FAIR VALUE DISCLOSURES - Quantitative Information about Level 3 (Details) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Market risk benefits	$ 13,642	$ 15,766
Assets for market risk benefits	777	490
Discounted cash flow | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 250	$ 247
Discount Rate | Discounted cash flow | Minimum | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.019	0.019
Discount Rate | Discounted cash flow | Maximum | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.104	0.104
Discount Rate | Discounted cash flow | Weighted Average | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.046	0.045
Expected Revenue Growth Rate | Discounted cash flow | Minimum | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.020	0.020
Expected Revenue Growth Rate | Discounted cash flow | Maximum | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.839	0.839
Expected Revenue Growth Rate | Discounted cash flow | Weighted Average | Alliance Bernstein | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.103	0.115
Corporate | Matrix Pricing Model | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 366	$ 417
Corporate | Market Comparable Companies | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 1,074	$ 1,029
Corporate | Spread Over Benchmark | Matrix Pricing Model | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0020	0.0020
Corporate | Spread Over Benchmark | Matrix Pricing Model | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0320	0.0797
Corporate | Spread Over Benchmark | Matrix Pricing Model | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0154	0.0205
Corporate | EBITDA Multiple | Market Comparable Companies | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	5.3	5.3
Corporate | EBITDA Multiple | Market Comparable Companies | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	33.7	35.8
Corporate | EBITDA Multiple | Market Comparable Companies | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	14.1	13.6
Corporate | Discount Rate | Market Comparable Companies | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.089	0.090
Corporate | Discount Rate | Market Comparable Companies | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.227	0.457
Corporate | Discount Rate | Market Comparable Companies | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.109	0.119
Corporate | Cash Flow Multiples | Market Comparable Companies | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.7	0.0
Corporate | Cash Flow Multiples | Market Comparable Companies | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	14.5	10.3
Corporate | Cash Flow Multiples | Market Comparable Companies | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	6.6	6.1
Corporate | Loan to Value | Market Comparable Companies | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.00000	0.000
Corporate | Loan to Value | Market Comparable Companies | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.00640	0.404
Corporate | Loan to Value | Market Comparable Companies | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.00143	0.120
Trading Securities, at Fair Value | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 55	$ 55
Measurement input	7 years	7 years
Trading Securities, at Fair Value | Revenue/Earnings Multiple | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	8.3	8.3
Trading Securities, at Fair Value | Discount Factor | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.100	0.1000
Other equity investments | Market Comparable Companies | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value		$ 4
Other equity investments | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 2
Other equity investments | Revenue/Earnings Multiple | Market Comparable Companies | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input		0.5
Other equity investments | Revenue/Earnings Multiple | Market Comparable Companies | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input		10.8
Other equity investments | Revenue/Earnings Multiple | Market Comparable Companies | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input		2.4
Other equity investments | Revenue/Earnings Multiple | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	6.8
Other equity investments | Revenue/Earnings Multiple | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	14.7
Other equity investments | Revenue/Earnings Multiple | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	8.0
Embedded Derivative, GMIB Reinsurance | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 9,931	$ 10,423
Embedded Derivative, GMIB Reinsurance | Lapse Rate | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0026	0.0026
Embedded Derivative, GMIB Reinsurance | Lapse Rate | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.2623	0.2623
Embedded Derivative, GMIB Reinsurance | Lapse Rate | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0164	0.0158
Embedded Derivative, GMIB Reinsurance | Withdrawal Rate | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0006	0.0006
Embedded Derivative, GMIB Reinsurance | Withdrawal Rate | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.1093	0.1093
Embedded Derivative, GMIB Reinsurance | Withdrawal Rate | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0045	0.0069
Embedded Derivative, GMIB Reinsurance | Utilization Rate | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0004	0.0004
Embedded Derivative, GMIB Reinsurance | Utilization Rate | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.6666	0.6666
Embedded Derivative, GMIB Reinsurance | Utilization Rate | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0710	0.0739
Embedded Derivative, GMIB Reinsurance | Non-Performance Risk | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0056	0.0054
Embedded Derivative, GMIB Reinsurance | Non-Performance Risk | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0141	0.0124
Embedded Derivative, GMIB Reinsurance | Non-Performance Risk | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0060	0.0069
Embedded Derivative, GMIB Reinsurance | Volatility Rate - Equity | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.11	0.14
Embedded Derivative, GMIB Reinsurance | Volatility Rate - Equity | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.27	0.32
Embedded Derivative, GMIB Reinsurance | Volatility Rate - Equity | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.23	0.24
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 0 - 40 | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0001	0.0001
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 0 - 40 | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0017	0.0017
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 0 - 40 | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0291	0.0287
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 41 - 60 | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0006	0.0006
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 41 - 60 | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0052	0.0052
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 41 - 60 | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0291	0.0287
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 61 - 115 | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0032	0.0032
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 61 - 115 | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.4000	0.4000
Embedded Derivative, GMIB Reinsurance | Mortality Rate | Discounted cash flow | Ages 61 - 115 | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0291	0.0287
Direct MRB | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value	$ 12,865	$ 15,276
Direct MRB | Lapse Rate | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0026	0.0026
Direct MRB | Lapse Rate | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.3542	0.3542
Direct MRB | Lapse Rate | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0327	0.0301
Direct MRB | Withdrawal Rate | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0000	0.0000
Direct MRB | Withdrawal Rate | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.1093	0.1093
Direct MRB | Withdrawal Rate | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0068	0.0068
Direct MRB | Non-Performance Risk | Discounted cash flow | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	192	0.0157
Direct MRB | Non-Performance Risk | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	192	0.0157
Direct MRB | Mortality Rate | Discounted cash flow | Ages 0 - 40 | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0001	0.0001
Direct MRB | Mortality Rate | Discounted cash flow | Ages 0 - 40 | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0017	0.0017
Direct MRB | Mortality Rate | Discounted cash flow | Ages 0 - 40 | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0239	0.0243
Direct MRB | Mortality Rate | Discounted cash flow | Ages 41 - 60 | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0006	0.0006
Direct MRB | Mortality Rate | Discounted cash flow | Ages 41 - 60 | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0052	0.0052
Direct MRB | Mortality Rate | Discounted cash flow | Ages 41 - 60 | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0239	0.0243
Direct MRB | Mortality Rate | Discounted cash flow | Ages 61 - 115 | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0032	0.0032
Direct MRB | Mortality Rate | Discounted cash flow | Ages 61 - 115 | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.4000	0.4000
Direct MRB | Mortality Rate | Discounted cash flow | Ages 61 - 115 | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0239	0.0243
Direct MRB | Annuitization Rate | Discounted cash flow | Minimum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0004	0.0004
Direct MRB | Annuitization Rate | Discounted cash flow | Maximum | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	1.0000	1.0000
Direct MRB | Annuitization Rate | Discounted cash flow | Weighted Average | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input	0.0493	0.0553

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Amount of asset position for contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk.

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