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Derivatives (Credit Risk on Freestanding Derivatives) (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Credit Derivatives [Line Items] |  |
Estimated fair value of derivatives in a net liability position (1) | $ 3,860 | $ 3,333
Derivative, Collateral, Right to Reclaim Cash | 74 | 86
Derivative Asset, Fair Value, Amount Not Offset Against Collateral | 7,561 | 8,370
Derivative Liability, Fair Value, Amount Not Offset Against Collateral | 7,576 | 7,272
Derivative Asset, Fair Value, Amount Offset Against Collateral | 74 | 53
Derivative Liability, Fair Value, Amount Offset Against Collateral | 14 | 9
Derivative assets | 7,477 | 8,212
Derivative liabilities | 7,543 | 7,259
Derivative, Collateral, Obligation to Return Cash | 49 | 26
Collateral Amount Not Provided Due to Downgrade Threshold | 15 |
Customer Securities for which Entity has Right to Sell or Repledge, Fair Value of Securities Sold or Repledged | 0 |
Exchange Traded [Member] |  |
Credit Derivatives [Line Items] |  |
Derivative, Collateral, Right to Reclaim Securities | 224 | 148
Gross estimated fair value of derivative assets | 14 | 11
Gross estimated fair value of derivative liabilities | 21 | 7
Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset | (3) | (1)
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset | (3) | (1)
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset | 0 | 0
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset | (14) | (6)
Derivative Asset, Collateral, Obligation to Return Securities, Offset | 0 | 0
Derivative Liability, Collateral, Right to Reclaim Securities, Offset | (4) | 0
Over the Counter [Member] |  |
Credit Derivatives [Line Items] |  |
Derivative, Collateral, Right to Reclaim Securities | 1,500 | 1,200
Gross estimated fair value of derivative assets | 7,351 | 8,224
Gross estimated fair value of derivative liabilities | 7,141 | 6,966
Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset | (3,281) | (3,633)
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset | (3,281) | (3,633)
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset | (1,484) | (2,597)
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset | (20) | 0
Derivative Asset, Collateral, Obligation to Return Securities, Offset | (2,544) | (1,955)
Derivative Liability, Collateral, Right to Reclaim Securities, Offset | (3,827) | (3,325)
Derivative, Collateral, Obligation to Return Securities | 385 | 410
Exchange Cleared [Member] |  |
Credit Derivatives [Line Items] |  |
Derivative, Collateral, Right to Reclaim Securities | 727 | 835
Gross estimated fair value of derivative assets | 196 | 135
Gross estimated fair value of derivative liabilities | 414 | 299
Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset | (6) | (5)
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset | (6) | (5)
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset | (169) | (126)
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset | (396) | (289)
Derivative Asset, Collateral, Obligation to Return Securities, Offset | 0 | 0
Derivative Liability, Collateral, Right to Reclaim Securities, Offset | (11) | (4)
Fixed maturity securities AFS |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of collateral provided: | 4,798 | 3,953
Accrued Liabilities [Member] |  |
Credit Derivatives [Line Items] |  |
Derivative assets | 84 | 158
Derivative liabilities | 33 | 13
Cash |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of collateral provided: | 20 | 0
Derivatives Subject to Credit- Contingent Provisions |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of derivatives in a net liability position (1) | 3,834 | 3,213
Derivatives Subject to Credit- Contingent Provisions | Fixed maturity securities AFS |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of collateral provided: | 4,751 | 3,829
Derivatives Subject to Credit- Contingent Provisions | Cash |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of collateral provided: | 20 | 0
Derivatives Not Subject to Credit- Contingent Provisions |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of derivatives in a net liability position (1) | 26 | 120
Derivatives Not Subject to Credit- Contingent Provisions | Fixed maturity securities AFS |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of collateral provided: | 47 | 124
Derivatives Not Subject to Credit- Contingent Provisions | Cash |  |
Credit Derivatives [Line Items] |  |
Estimated fair value of collateral provided: | $ 0 | $ 0

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