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Fair Value of Financial Instruments (Fair Value Measured On A Recurring Basis Reconciliation) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | $ 8,381 | $ 2,724 | $ 6,441 | $ 5,141
Items Included in Net Income | (27) | (549) | 1,827 | (2,925)
Gains (Losses) in OCI and Other | 84 | 201 | (47) | 82
Issuances, Sales, Maturities, Settlements, Calls, Net | 213 | (314) | 508 | (201)
Transfers Into or Out of Level 3, Net | 762 | 64 | 684 | 29
Ending Fair Value | 9,413 | 2,126 | 9,413 | 2,126
Corporate Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 5,145 | 4,103 | 5,121 | 4,281
Items Included in Net Income | 1 |  | 3 |
Gains (Losses) in OCI and Other | 69 | 205 | (51) | (180)
Issuances, Sales, Maturities, Settlements, Calls, Net | 215 | (14) | 385 | 151
Transfers Into or Out of Level 3, Net | (1) | 50 | (29) | 92
Ending Fair Value | 5,429 | 4,344 | 5,429 | 4,344
U.S. Government Bonds [Member] | Fixed Maturity AFS Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 5 | 5 | 5 | 5
Items Included in Net Income |  |  |  |
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | (5) |  | (5) |
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 | 66 | 87 | 74 | 90
Items Included in Net Income |  |  |  |
Gains (Losses) in OCI and Other |  | (1) | (8) | (4)
Issuances, Sales, Maturities, Settlements, Calls, Net | 14 |  | 14 |
Transfers Into or Out of Level 3, Net | (37) |  | (37) |
Ending Fair Value | 43 | 86 | 43 | 86
RMBS [Member] | Fixed Maturity AFS Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 2 | 1 | 2 | 11
Items Included in Net Income | (1) |  | (1) |
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |  |  |
Transfers Into or Out of Level 3, Net |  | 1 |  | (9)
Ending Fair Value | 1 | 2 | 1 | 2
CMBS [Member] | Fixed Maturity AFS Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 1 | 1 |  | 1
Items Included in Net Income |  |  | 1 |
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | 8 |  | 8 |
Transfers Into or Out of Level 3, Net |  |  |  |
Ending Fair Value | 9 | 1 | 9 | 1
ABS [Member] | Fixed Maturity AFS Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 688 | 196 | 570 | 268
Items Included in Net Income | 1 |  | 1 |
Gains (Losses) in OCI and Other | 4 | 5 | (3) | 1
Issuances, Sales, Maturities, Settlements, Calls, Net | 99 | 236 | 282 | 258
Transfers Into or Out of Level 3, Net | (162) | (13) | (220) | (103)
Ending Fair Value | 630 | 424 | 630 | 424
Hybrid And Redeemable Preferred Securities [Member] | Fixed Maturity AFS Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 85 | 72 | 104 | 78
Items Included in Net Income |  |  |  |
Gains (Losses) in OCI and Other | 11 | 4 | 12 | (2)
Issuances, Sales, Maturities, Settlements, Calls, Net | 6 | (4) | (14) | (4)
Transfers Into or Out of Level 3, Net |  | 18 |  | 18
Ending Fair Value | 102 | 90 | 102 | 90
Mortgage Loans On Real Estate [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 874 |  | 832 |
Items Included in Net Income | 5 |  | 7 |
Gains (Losses) in OCI and Other |  |  | 3 |
Issuances, Sales, Maturities, Settlements, Calls, Net | (61) |  | (24) |
Transfers Into or Out of Level 3, Net |  |  |  |
Ending Fair Value | 818 |  | 818 |
Trading Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 715 | 651 | 644 | 666
Items Included in Net Income | 2 | 28 | (1) | (4)
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | (64) | (14) | 2 | (20)
Transfers Into or Out of Level 3, Net | (23) | 8 | (15) | 31
Ending Fair Value | 630 | 673 | 630 | 673
Equity Securities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 61 | 30 | 59 | 30
Items Included in Net Income | 20 | (1) | 26 | (1)
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net | 1 |  | (3) |
Transfers Into or Out of Level 3, Net |  |  |  |
Ending Fair Value | 82 | 29 | 82 | 29
Derivative Investments [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 2,661 | 2,027 | 1,542 | 868
Items Included in Net Income | (2) | (1,402) | 1,249 | (405)
Gains (Losses) in OCI and Other |  | (12) |  | 267
Issuances, Sales, Maturities, Settlements, Calls, Net |  | (18) | (132) | (135)
Transfers Into or Out of Level 3, Net | (2,658) |  | (2,658) |
Ending Fair Value | 1 | 595 | 1 | 595
GLB Direct Embedded Derivatives [Member] | Other Assets [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 1,831 |  | 450 | 450
Items Included in Net Income | (64) |  | 1,317 | (450)
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |  |  |
Transfers Into or Out of Level 3, Net |  |  |  |
Ending Fair Value | 1,767 |  | 1,767 |
GLB Direct Embedded Derivatives [Member] | Other Liabilities [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | (152) | (4,596) |  |
Items Included in Net Income |  | 1,510 | (152) | (3,086)
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |  |  |
Transfers Into or Out of Level 3, Net |  |  |  |
Ending Fair Value | (152) | (3,086) | (152) | (3,086)
GLB Ceded Embedded Derivatives [Member] | Other Assets [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | 42 | 728 | 82 | 60
Items Included in Net Income | 11 | (157) | (29) | 511
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  |  |  |
Transfers Into or Out of Level 3, Net |  |  |  |
Ending Fair Value | 53 | 571 | 53 | 571
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 | 527 | 799 | 550 | 927
Items Included in Net Income |  | 304 | 32 | 189
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  | (439) | (55) | (452)
Transfers Into or Out of Level 3, Net | (527) |  | (527) |
Ending Fair Value |  | 664 |  | 664
Indexed Annuity And IUL Contracts [Member] | Future Contract Benefits [Member] |  |  |  |
Level 3 Unobservable Input Reconciliation |  |  |  |
Beginning Fair Value | (4,170) | (1,380) | (3,594) | (2,585)
Items Included in Net Income |  | (831) | (626) | 312
Gains (Losses) in OCI and Other |  |  |  |
Issuances, Sales, Maturities, Settlements, Calls, Net |  | (61) | 50 | 1
Transfers Into or Out of Level 3, Net | 4,170 |  | 4,170 |
Ending Fair Value |  | $ (2,272) |  | $ (2,272)

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