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Fair Value of Financial Instruments (Components Of The Transfers In And Out Of Level 3) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 | $ 237 | $ 1,212 | $ 192
Transfers Out of Level 3 | (3,269) | (729) | (1,014)
Total | (3,032) | 483 | (822)
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 | 163 | 343 | 173
Transfers Out of Level 3 | (134) | (243) | (222)
Total | 29 | 100 | (49)
RMBS [Member] | Fixed Maturity AFS Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 |  | 1 |
Transfers Out of Level 3 |  | (10) | (17)
Total |  | (9) | (17)
ABS [Member] | Fixed Maturity AFS Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 | 36 | 20 | 9
Transfers Out of Level 3 | (330) | (221) | (495)
Total | (294) | (201) | (486)
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 |  | 5 | 5
Transfers Out of Level 3 |  | (5) |
Total |  |  | 5
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Out of Level 3 | (102) |  |
Total | (102) |  |
CMBS [Member] | Fixed Maturity AFS Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Out of Level 3 | (8) |  | (7)
Total | (8) |  | (7)
Hybrid And Redeemable Preferred Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 |  | 18 |
Total |  | 18 |
Mortgage Loans On Real Estate [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 |  | 787 |
Total |  | 787 |
Trading Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 | 14 | 33 | 5
Transfers Out of Level 3 | (37) | (34) | (273)
Total | (23) | (1) | $ (268)
Equity Securities [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 |  | 5 |
Total |  | 5 |
Derivative Investments [Member] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net [Abstract] |  |  |
Transfers Into Level 3 | 24 |  |
Transfers Out of Level 3 | (2,658) | (216) |
Total | $ (2,634) | $ (216) |

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- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy. + References No definition available. + Details
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