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FAIR VALUE DISCLOSURES - Quantitative Information about Level 3 (Details) $ in Millions | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Liability for market risk benefits | $ 10,864 | $ 11,810 | $ 12,612 | $ 12,833 | $ 14,630
Assets for market risk benefits | 644 | 863 | $ 799 | $ 821 | $ 594
Level 3 | Discounted cash flow | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
AB Contingent consideration payable | $ 8 | $ 9 |  |  |
Level 3 | Discounted cash flow | Discount Rate | Minimum | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Expected revenue growth and discount rate | 0.019 | 0.019 |  |  |
Level 3 | Discounted cash flow | Discount Rate | Maximum | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Expected revenue growth and discount rate | 0.019 | 0.104 |  |  |
Level 3 | Discounted cash flow | Discount Rate | Weighted Average | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Expected revenue growth and discount rate | 0.019 | 0.073 |  |  |
Level 3 | Discounted cash flow | Expected Revenue Growth Rate | Minimum | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Expected revenue growth and discount rate | 0.020 | 0.020 |  |  |
Level 3 | Discounted cash flow | Expected Revenue Growth Rate | Maximum | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Expected revenue growth and discount rate | 0.133 | 0.293 |  |  |
Level 3 | Discounted cash flow | Expected Revenue Growth Rate | Weighted Average | Alliance Bernstein |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Expected revenue growth and discount rate | 0.068 | 0.055 |  |  |
Level 3 | Corporate | Matrix pricing model |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed maturities AFS |  | $ 402 |  |  |
Level 3 | Corporate | Matrix pricing model | Spread over Benchmark | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities |  | 0.0070 |  |  |
Level 3 | Corporate | Matrix pricing model | Spread over Benchmark | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities |  | 0.0220 |  |  |
Level 3 | Corporate | Matrix pricing model | Spread over Benchmark | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities |  | 0.0153 |  |  |
Level 3 | Corporate | Market comparable companies |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed maturities AFS | $ 1,050 | $ 981 |  |  |
Level 3 | Corporate | Market comparable companies | EBITDA Multiples | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 1.0 | 4.7 |  |  |
Level 3 | Corporate | Market comparable companies | EBITDA Multiples | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 36.5 | 36.5 |  |  |
Level 3 | Corporate | Market comparable companies | EBITDA Multiples | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 10.8 | 12.2 |  |  |
Level 3 | Corporate | Market comparable companies | Discount Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.079 | 0.084 |  |  |
Level 3 | Corporate | Market comparable companies | Discount Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.187 | 0.349 |  |  |
Level 3 | Corporate | Market comparable companies | Discount Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.035 | 0.039 |  |  |
Level 3 | Corporate | Market comparable companies | Cash Flow Multiples | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 1.8 | 1.8 |  |  |
Level 3 | Corporate | Market comparable companies | Cash Flow Multiples | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 13.0 | 11.8 |  |  |
Level 3 | Corporate | Market comparable companies | Cash Flow Multiples | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 4.4 | 4.5 |  |  |
Level 3 | Corporate | Market comparable companies | Loan to Value | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | (0.017) | 0.000 |  |  |
Level 3 | Corporate | Market comparable companies | Loan to Value | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.546 | 0.564 |  |  |
Level 3 | Corporate | Market comparable companies | Loan to Value | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.087 | 0.150 |  |  |
Level 3 | Trading Securities, at Fair Value | Market comparable companies |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed maturities AFS | $ 1 | $ 1 |  |  |
Level 3 | Trading Securities, at Fair Value | Market comparable companies | Cash Flow Multiples | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 6.0 |  |  |  |
Level 3 | Trading Securities, at Fair Value | Market comparable companies | Cash Flow Multiples | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 8.4 | 8.4 |  |  |
Level 3 | Trading Securities, at Fair Value | Market comparable companies | Cash Flow Multiples | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 8.4 | 8.4 |  |  |
Level 3 | Trading Securities, at Fair Value | Discounted cash flow |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed maturities AFS | $ 75 | $ 75 |  |  |
Discount years | 7 years |  |  |  |
Level 3 | Trading Securities, at Fair Value | Discounted cash flow | Earnings/Revenue Multiple |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 8.6 | 8.6 |  |  |
Level 3 | Trading Securities, at Fair Value | Discounted cash flow | Discount Factor |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.100 | 0.100 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of fixed maturities AFS | $ 5,976 | $ 7,376 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Lapse Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0024 | 0.0024 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Lapse Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.1305 | 0.1305 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Lapse Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0200 | 0.0217 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Withdrawal Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0006 | 0.0006 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Withdrawal Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.1165 | 0.1165 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Withdrawal Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0059 | 0.0048 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | GMIB Utilization Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0004 | 0.0004 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | GMIB Utilization Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.6670 | 0.6670 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | GMIB Utilization Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0677 | 0.0675 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Non-Performance Risk | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0 | 0.0033 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Non-Performance Risk | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0097 | 0.0093 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Non-Performance Risk | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0007 | 0.0034 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Volatility Rate - Equity | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.15 | 0.12 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Volatility Rate - Equity | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.30 | 0.29 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Volatility Rate - Equity | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.23 | 0.23 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 0 - 40 | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0001 | 0.0001 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 0 - 40 | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0017 | 0.0017 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 0 - 40 | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0319 | 0.0336 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 41 - 60 | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0006 | 0.0006 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 41 - 60 | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0052 | 0.0052 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 61 - 115 | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.0032 | 0.0032 |  |  |
Level 3 | Purchased MRB asset | Discounted cash flow | Mortality | Ages 61 - 115 | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Percentage measurement input of equity securities | 0.4120 | 0.4120 |  |  |
Level 3 | Direct MRB | Discounted cash flow |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Direct MRB | $ 10,220 | $ 10,947 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Lapse Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0024 | 0.0024 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Lapse Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.3618 | 0.3618 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Lapse Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0358 | 0.0357 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Withdrawal Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0000 | 0.0000 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Withdrawal Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.1165 | 0.1165 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Withdrawal Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0075 | 0.0058 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Non-Performance Risk |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0116 | 0.0094 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Non-Performance Risk | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0116 | 0.0094 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 0 - 40 | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0001 | 0.0001 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 0 - 40 | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0017 | 0.0017 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 0 - 40 | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0287 | 0.0300 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 41 - 60 | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0006 | 0.0006 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 41 - 60 | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0052 | 0.0052 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 61 - 115 | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0032 | 0.0032 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Mortality | Ages 61 - 115 | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.4120 | 0.4120 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Annuitization Rate | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0004 | 0.0004 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Annuitization Rate | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 1.0000 | 1.0000 |  |  |
Level 3 | Direct MRB | Discounted cash flow | Annuitization Rate | Weighted Average |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Measurement input of servicing liability | 0.0525 | 0.0515 |  |  |

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