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Disposition of MetLife Poland and Greece (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Cash and cash equivalents | $ 0 | $ 69 | $ 765 | $ 0
Liabilities held-for-sale | $ 0 | 6,634 |  |
MetLife Poland and Greece |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 7,238 |  |
Cash and cash equivalents |  | 69 |  |
Other |  | 259 |  |
Liabilities held-for-sale |  | 6,634 |  |
Other |  | 113 |  |
MetLife Poland and Greece | Fixed Maturities [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 2,043 |  |
MetLife Poland and Greece | Contractholder-directed equity securities |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 1,114 |  |
MetLife Poland and Greece | Other Investments |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 118 |  |
MetLife Poland and Greece | Investments |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 3,275 |  |
MetLife Poland and Greece | Deferred policy acquisition costs and value of business acquired |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 138 |  |
MetLife Poland and Greece | Separate account assets |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Disposal Group, Including Discontinued Operation, Assets |  | 3,497 |  |
MetLife Poland and Greece | Future policy benefits [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Liabilities held-for-sale |  | 916 |  |
MetLife Poland and Greece | Policyholder Account Balances [Member] |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Liabilities held-for-sale |  | 2,005 |  |
MetLife Poland and Greece | Other Policy-Related Balances |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Liabilities held-for-sale |  | 103 |  |
MetLife Poland and Greece | Separate account liabilities |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Liabilities held-for-sale |  | $ 3,497 |  |

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