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v3.23.1

Accounting Changes and Error Corrections (Narrative) (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021
--- | --- | --- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  | $ 38,222 | $ 35,689 | $ 42,406 |  |
Life Insurance Product Line [Member] | Americas [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  | 9,845 |  | 11,765 |  |
Insurance, Other | Americas [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  | $ 3,994 |  | $ 4,465 |  |
Accounting Standards Update 2018-12 |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  | 35,689 |  | $ 47,449 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Americas [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  | 9,474 |  | 14,042 | $ 17,632
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  | 3,819 |  | 4,947 | 5,883
Revision of Prior Period, Accounting Standards Update, Adjustment | Accounting Standards Update 2018-12 | Retained Earnings [Member] |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | (1,746)
Revision of Prior Period, Change in Accounting Principle, Adjustment | Accounting Standards Update 2018-12 |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  | $ 469 |  | $ 11,667 |
Revision of Prior Period, Change in Accounting Principle, Adjustment | Accounting Standards Update 2018-12 | Retained Earnings [Member] | Life Insurance Product Line [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 1,462
Revision of Prior Period, Change in Accounting Principle, Adjustment | Accounting Standards Update 2018-12 | Retained Earnings [Member] | Life Insurance Product Line [Member] | Americas [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits | [1] |  |  |  |  | 896
Revision of Prior Period, Change in Accounting Principle, Adjustment | Accounting Standards Update 2018-12 | Retained Earnings [Member] | Insurance, Other | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 284
Revision of Prior Period, Change in Accounting Principle, Adjustment | Accounting Standards Update 2018-12 | Retained Earnings [Member] | Insurance, Other | Americas [Member] | Other Segments |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |
Future policy benefits | [2] |  |  |  |  | $ 0
[1] | Includes adjustments for capping the net premium ratio at 100% and eliminating negative reserves on certain issue year cohorts.
[2] | Includes adjustments for capping the net premium ratio at 100% and eliminating negative reserves on certain issue year cohorts.

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