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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, 2021 | Mar. 31, 2020
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | $ 6,441 | $ 5,141
Items Included in Net Income | 1,854 | (2,376)
Gains (Losses) in OCI and Other | (131) | (119)
Issuances, Sales, Maturities, Settlements, Calls, Net | 295 | 113
Transfers Into or Out of Level 3, Net | (78) | (35)
Ending Fair Value | 8,381 | 2,724
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 5,121 | 4,281
Items Included in Net Income | 2 |
Gains (Losses) in OCI and Other | (120) | (385)
Issuances, Sales, Maturities, Settlements, Calls, Net | 170 | 165
Transfers Into or Out of Level 3, Net | (28) | 42
Ending Fair Value | 5,145 | 4,103
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 5 | 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 | 5
Foreign Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 74 | 90
Items Included in Net Income |  |
Gains (Losses) in OCI and Other | (8) | (3)
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 66 | 87
RMBS [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 2 | 11
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)
Ending Fair Value | 2 | 1
CMBS [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value |  | 1
Items Included in Net Income | 1 |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 1 | 1
ABS [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 570 | 268
Items Included in Net Income |  |
Gains (Losses) in OCI and Other | (7) | (4)
Issuances, Sales, Maturities, Settlements, Calls, Net | 183 | 22
Transfers Into or Out of Level 3, Net | (58) | (90)
Ending Fair Value | 688 | 196
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 104 | 78
Items Included in Net Income |  |
Gains (Losses) in OCI and Other | 1 | (6)
Issuances, Sales, Maturities, Settlements, Calls, Net | (20) |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 85 | 72
Mortgage Loans On Real Estate [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 832 |
Items Included in Net Income | 2 |
Gains (Losses) in OCI and Other | 3 |
Issuances, Sales, Maturities, Settlements, Calls, Net | 37 |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 874 |
Trading Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 644 | 666
Items Included in Net Income | (3) | (32)
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | 66 | (6)
Transfers Into or Out of Level 3, Net | 8 | 23
Ending Fair Value | 715 | 651
Equity Securities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 59 | 30
Items Included in Net Income | 6 |
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | (4) |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 61 | 30
Derivative Investments [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 1,542 | 868
Items Included in Net Income | 1,251 | 997
Gains (Losses) in OCI and Other |  | 279
Issuances, Sales, Maturities, Settlements, Calls, Net | (132) | (117)
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 2,661 | 2,027
GLB Direct Embedded Derivatives [Member] | Other Assets [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 450 | 450
Items Included in Net Income | 1,381 | (450)
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 1,831 |
GLB Direct Embedded Derivatives [Member] | Other Liabilities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Items Included in Net Income | (152) | (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 | (152) | (4,596)
GLB Ceded Embedded Derivatives [Member] | Other Assets [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 82 | 60
Items Included in Net Income | (40) | 668
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 42 | 728
GLB Ceded Embedded Derivatives [Member] | Other Liabilities [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value |  | (9)
Items Included in Net Income |  | 9
Indexed Annuity Ceded Embedded Derivatives [Member] | Other Assets [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | 550 | 927
Items Included in Net Income | 32 | (115)
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | (55) | (13)
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | 527 | 799
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member] |  |
Level 3 Unobservable Input Reconciliation |  |
Beginning Fair Value | (3,594) | (2,585)
Items Included in Net Income | (626) | 1,143
Gains (Losses) in OCI and Other |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | 50 | 62
Transfers Into or Out of Level 3, Net |  |
Ending Fair Value | $ (4,170) | $ (1,380)

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