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Deferred Policy Acquisition Costs, Value of Business Acquired and Other Policy-Related Intangibles (DAC and VOBA by Segment) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | $ 22,983 | $ 16,061 | $ 16,389
U.S. |  |  |
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | 459 | 440 |
Asia |  |  |
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | 13,384 | 9,339 |
Latin America |  |  |
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | 2,211 | 2,021 |
EMEA |  |  |
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | 1,593 | 1,623 |
MetLife Holdings |  |  |
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | 5,308 | 2,607 |
Corporate & Other |  |  |
Segment Reporting Information [Line Items] |  |  |
DAC and VOBA | $ 28 | $ 31 |

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