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Policyholder Account Balances (Account Balances) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance | $ 23,543 | $ 23,103 | $ 23,543 | $ 23,103 |  |  |
Interest credited | 209 | 138 | 424 | 279 |  |  |
Policyholder Account Balance, Increase (Decrease) from Other Change |  |  | 52 | 71 |  |  |
Accounting Standards Update 2018-12 |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Interest credited |  |  |  |  | $ 682 | $ 700 |
Life Insurance Product Line [Member] | Americas [Member] | Other Segments |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance | 1,639 | 1,693 | 1,639 | 1,693 | 1,683 | 1,719 |
Policyholder Account Balance, Issuance |  |  | 6 | 7 |  |  |
Policyholder Account Balance, Policy Charge |  |  | (15) | (16) |  |  |
Policyholder Account Balance, Surrender and Withdrawal |  |  | (8) | (10) |  |  |
Policyholder Account Balance, Benefit Payment |  |  | (60) | (40) |  |  |
Interest credited |  |  | 33 | 33 |  |  |
Policyholder Account Balance Foreign Currency Translation |  |  | 0 | 0 |  |  |
Policyholder Account Balance Reinsurance Recoverable | 0 | 0 | 0 | 0 |  |  |
Policyholder Account Balance After Reinsurance | 1,639 | 1,693 | 1,639 | 1,693 |  |  |
Policyholder Account Balance, Net Amount at Risk | 686 | 710 | 686 | 710 |  |  |
Policyholder Account Balance, Cash Surrender Value | $ 1,624 | $ 1,678 | $ 1,624 | $ 1,678 |  |  |
Policyholder Account Balance, Weighted Average Crediting Rate | 4.00% | 4.00% | 4.00% | 4.00% |  |  |
Life Insurance Product Line [Member] | Americas [Member] | Accounting Standards Update 2018-12 | Other Segments |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance |  |  |  |  | 1,683 | 1,719 | $ 1,752
Policyholder Account Balance, Issuance |  |  |  |  | 24 | 25 |
Policyholder Account Balance, Policy Charge |  |  |  |  | (32) | (32) |
Policyholder Account Balance, Surrender and Withdrawal |  |  |  |  | (17) | (13) |
Policyholder Account Balance, Benefit Payment |  |  |  |  | (76) | (79) |
Interest credited |  |  |  |  | 65 | 66 |
Policyholder Account Balance Foreign Currency Translation |  |  |  |  | 0 | 0 |
Policyholder Account Balance Reinsurance Recoverable |  |  |  |  | 0 | 0 |
Policyholder Account Balance After Reinsurance |  |  |  |  | 1,683 | 1,719 |
Insurance, Other | Americas [Member] | Other Segments |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance | $ 17,954 | $ 18,980 | $ 17,954 | $ 18,980 | 18,906 | 18,758 |
Policyholder Account Balance, Issuance |  |  | 66 | 738 |  |  |
Policyholder Account Balance, Policy Charge |  |  | (17) | (16) |  |  |
Policyholder Account Balance, Surrender and Withdrawal |  |  | (1,046) | (576) |  |  |
Policyholder Account Balance, Benefit Payment |  |  | (238) | (228) |  |  |
Interest credited |  |  | 283 | 304 |  |  |
Policyholder Account Balance Foreign Currency Translation |  |  | 0 | 0 |  |  |
Policyholder Account Balance Reinsurance Recoverable | (1,519) | (1,545) | (1,519) | (1,545) |  |  |
Policyholder Account Balance After Reinsurance | 16,435 | 17,435 | 16,435 | 17,435 |  |  |
Policyholder Account Balance, Net Amount at Risk | 2,439 | 2,547 | 2,439 | 2,547 |  |  |
Policyholder Account Balance, Cash Surrender Value | $ 17,907 | $ 18,925 | $ 17,907 | $ 18,925 |  |  |
Policyholder Account Balance, Weighted Average Crediting Rate | 3.30% | 3.20% | 3.30% | 3.20% |  |  |
Insurance, Other | Americas [Member] | Accounting Standards Update 2018-12 | Other Segments |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance |  |  |  |  | 18,906 | 18,758 | 16,273
Policyholder Account Balance, Issuance |  |  |  |  | 1,289 | 3,290 |
Policyholder Account Balance, Policy Charge |  |  |  |  | (33) | (31) |
Policyholder Account Balance, Surrender and Withdrawal |  |  |  |  | (1,258) | (1,015) |
Policyholder Account Balance, Benefit Payment |  |  |  |  | (448) | (404) |
Interest credited |  |  |  |  | 598 | 645 |
Policyholder Account Balance Foreign Currency Translation |  |  |  |  | 0 | 0 |
Policyholder Account Balance Reinsurance Recoverable |  |  |  |  | (1,543) | (1,561) |
Policyholder Account Balance After Reinsurance |  |  |  |  | 17,363 | 17,197 |
Insurance, Other | Asia Pacific [Member] | Other Segments |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance | $ 3,898 | $ 2,359 | $ 3,898 | $ 2,359 | 3,351 | 1,621 |
Policyholder Account Balance, Issuance |  |  | 605 | 954 |  |  |
Policyholder Account Balance, Policy Charge |  |  | (1) | (22) |  |  |
Policyholder Account Balance, Surrender and Withdrawal |  |  | (50) | (170) |  |  |
Policyholder Account Balance, Benefit Payment |  |  | (43) | (16) |  |  |
Interest credited |  |  | 53 | 15 |  |  |
Policyholder Account Balance Foreign Currency Translation |  |  | (17) | 23 |  |  |
Policyholder Account Balance Reinsurance Recoverable | 0 | 0 | 0 | 0 |  |  |
Policyholder Account Balance After Reinsurance | 3,898 | 2,359 | 3,898 | 2,359 |  |  |
Policyholder Account Balance, Net Amount at Risk | 0 | 0 | 0 | 0 |  |  |
Policyholder Account Balance, Cash Surrender Value | $ 3,695 | $ 2,277 | $ 3,695 | $ 2,277 |  |  |
Policyholder Account Balance, Weighted Average Crediting Rate | 2.90% | 1.80% | 2.90% | 1.80% |  |  |
Insurance, Other | Asia Pacific [Member] | Accounting Standards Update 2018-12 | Other Segments |  |  |  |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |  |  |  |
Policyholder Account Balance |  |  |  |  | 3,351 | 1,621 | $ 809
Policyholder Account Balance, Issuance |  |  |  |  | 2,521 | 868 |
Policyholder Account Balance, Policy Charge |  |  |  |  | (134) | (1) |
Policyholder Account Balance, Surrender and Withdrawal |  |  |  |  | (639) | (36) |
Policyholder Account Balance, Benefit Payment |  |  |  |  | (46) | (24) |
Interest credited |  |  |  |  | 51 | 19 |
Policyholder Account Balance Foreign Currency Translation |  |  |  |  | (23) | (14) |
Policyholder Account Balance Reinsurance Recoverable |  |  |  |  | 0 | 0 |
Policyholder Account Balance After Reinsurance |  |  |  |  | $ 3,351 | $ 1,621 |

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