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v3.25.2

Investments - Narrative (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 USD ($) investment | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) investment | Jun. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) investment
Investments [Line Items] |  |  |  |  |
Decrease in gross AFS securities unrealized losses |  |  | $ 1,000 |  |
Percentage of fair value rated as investment grade | 96.00% |  | 96.00% |  | 96.00%
Losses from loan modifications | $ 13 | $ 3 | $ 18 | $ 3 |
Number of partnerships in alternative investment portfolio | investment | 372 |  | 372 |  | 371
Alternative investments as a percentage of overall invested assets |  |  | 3.00% |  | 3.00%
Investment commitments | $ 4,300 |  | $ 4,300 |  |
Investment commitments for limited partnerships | 3,600 |  | 3,600 |  |
Investment commitments for mortgage loans on real estate | 426 |  | 426 |  |
Investment commitments for private placements | 258 |  | 258 |  |
Derivative Counterparties |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Fair value of collateral received that we are permitted to sell or re-pledge | 3,200 |  | 3,200 |  |
Fair value of securities received as collateral that have been resold or repledged | 358 |  | 358 |  |
Corporate bonds |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Amortized cost of portfolio rated below investment grade | 3,000 |  | 3,000 |  | $ 2,900
Fair value of portfolio rated below investment grade | 2,900 |  | 2,900 |  | 2,800
Fannie Mae | MBS |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Fair value, concentration of risk, investments | 941 |  | $ 941 |  | $ 851
Fannie Mae | Investments | Lender Concentration Risk | MBS |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Concentration risk |  |  | 1.00% |  | 1.00%
Federal Home Loan Mortgage Corporation | MBS |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Fair value, concentration of risk, investments | 621 |  | $ 621 |  | $ 566
Federal Home Loan Mortgage Corporation | Investments | Lender Concentration Risk | MBS |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Concentration risk |  |  | 1.00% |  | 1.00%
Financial Service | Securities Investment |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Fair value, concentration of risk, investments | 13,400 |  | $ 13,400 |  | $ 13,400
Financial Service | Investments | Lender Concentration Risk | Securities Investment |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Concentration risk |  |  | 10.00% |  | 10.00%
Consumer Non-Cyclical Industry | Securities Investment |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Fair value, concentration of risk, investments | $ 12,900 |  | $ 12,900 |  | $ 12,900
Consumer Non-Cyclical Industry | Investments | Lender Concentration Risk | Securities Investment |  |  |  |  |
Investments [Line Items] |  |  |  |  |
Concentration risk |  |  |  |  | 10.00%

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