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Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | $ 5,141 | $ 4,014
Items Included in Net Income | (2,376) | (337)
Gains (Losses) in OCI and Other | (119) | 120
Issuances, Sales, Maturities, Settlements, Calls, Net | 113 | 409
Transfers Into or Out of Level 3, Net | (35) | (166)
Ending Fair Value | 2,724 | 4,040
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 4,281 | 3,269
Items Included in Net Income |  | (1)
Gains (Losses) in OCI and Other | (385) | 70
Issuances, Sales, Maturities, Settlements, Calls, Net | 165 | 200
Transfers Into or Out of Level 3, Net | 42 | (17)
Ending Fair Value | 4,103 | 3,521
ABS [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 268 | 134
Items Included in Net Income |  |
Gains (Losses) in OCI and Other | (4) |
Issuances, Sales, Maturities, Settlements, Calls, Net | 22 | 149
Transfers Into or Out of Level 3, Net | (90) | (105)
Ending Fair Value | 196 | 178
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 5 |
Items Included in Net Income |  |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 5 |
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 90 | 109
Items Included in Net Income |  |
Gains (Losses) in OCI and Other | (3) | 1
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 87 | 110
RMBS [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 11 | 7
Items Included in Net Income |  |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net | (10) | (7)
Ending Fair Value | 1 |
CMBS [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 1 | 2
Items Included in Net Income |  |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 1 | 2
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 78 | 75
Items Included in Net Income |  |
Gains (Losses) in OCI and Other | (6) | 3
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 72 | 78
Trading Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 666 | 67
Items Included in Net Income | (32) |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | (6) | 206
Transfers Into or Out of Level 3, Net | 23 | (37)
Ending Fair Value | 651 | 236
Equity Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 30 | 25
Items Included in Net Income |  |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 30 | 25
Derivative Investments [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 868 | 534
Items Included in Net Income | 997 | (383)
Gains (Losses) in OCI and Other | 279 | 46
Issuances, Sales, Maturities, Settlements, Calls, Net | (117) | 70
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 2,027 | 267
GLB Direct Embedded Derivatives [Member] | Other Assets [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 450 | 123
Items Included in Net Income | (450) | 316
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value |  | 439
GLB Direct Embedded Derivatives [Member] | Other Liabilities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Items Included in Net Income | (4,596) |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | (4,596) |
GLB Ceded Embedded Derivatives [Member] | Other Assets [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 60 | 72
Items Included in Net Income | 668 | (22)
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 728 | 50
GLB Ceded Embedded Derivatives [Member] | Other Liabilities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | (9) |
Items Included in Net Income | 9 | (8)
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value |  | (8)
Indexed Annuity Ceded Embedded Derivatives [Member] | Other Assets [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 927 | 902
Items Included in Net Income | (115) | 77
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | (13) | (107)
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 799 | 872
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | (2,585) | (1,305)
Items Included in Net Income | 1,143 | (316)
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | 62 | (109)
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | $ (1,380) | $ (1,730)

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