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Adoption of ASU 2018-12 (Summary of Changes in DAC, VOBA and DSI) (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | $ 10,975
VOBA |  |  |  | 900
DSI |  |  |  | 229
DAC, VOBA and DSI | $ 6,079 |  |  | 12,104
As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 5,565
VOBA |  |  |  | 247
DSI |  |  |  | 213
DAC, VOBA and DSI |  |  |  | 6,025
Restatement Adjustments [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 5,410
VOBA |  |  |  | 653
DSI |  |  |  | 16
DAC, VOBA and DSI |  |  |  | 6,079
Variable Annuities [Member] |  |  |  |
DAC | 3,746 | $ 3,751 | $ 3,717 |
DSI | 124 | 128 | 139 |
Variable Annuities [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 3,570
DSI |  |  |  | 150
Variable Annuities [Member] | As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 3,518
DSI |  |  |  | 148
Variable Annuities [Member] | Restatement Adjustments [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 52
DSI |  |  |  | 2
Fixed Annuities [Member] |  |  |  |
DAC | 428 | 439 | 448 |
VOBA | 16 | 17 | 20 |
DSI | 21 | 23 | 27 |
Fixed Annuities [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 479
VOBA |  |  |  | 23
DSI |  |  |  | 30
Fixed Annuities [Member] | As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 264
DSI |  |  |  | 17
Fixed Annuities [Member] | Restatement Adjustments [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 215
VOBA |  |  |  | 23
DSI |  |  |  | 13
Traditional Life [Member] |  |  |  |
DAC | 1,365 | 1,333 | 1,195 |
VOBA | 46 | 50 | 59 |
Traditional Life [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 1,082
VOBA |  |  |  | 67
Traditional Life [Member] | As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 1,082
VOBA |  |  |  | 67
UL and Other [Member] |  |  |  |
DAC | 5,697 | 5,605 | 5,360 |
VOBA | 443 | 465 | 511 |
DSI | 29 | 30 | 31 |
UL and Other [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 5,425
VOBA |  |  |  | 810
DSI |  |  |  | 35
UL and Other [Member] | As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 394
VOBA |  |  |  | 180
DSI |  |  |  | 35
UL and Other [Member] | Restatement Adjustments [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 5,031
VOBA |  |  |  | 630
Retirement Plan Services [Member] |  |  |  |
DAC | 237 | 236 | 235 |
DSI | 19 | 17 | 14 |
Retirement Plan Services [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 232
DSI |  |  |  | 14
Retirement Plan Services [Member] | As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 120
DSI |  |  |  | 13
Retirement Plan Services [Member] | Restatement Adjustments [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 112
DSI |  |  |  | 1
Group Protection [Member] |  |  |  |
DAC | $ 145 | $ 141 | $ 140 |
Group Protection [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | 187
Group Protection [Member] | As Previously Reported [Member] | Accounting Standards Update 2018-12 [Member] |  |  |  |
DAC |  |  |  | $ 187

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