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Insurance (Insurance Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | $ 426,961 | $ 420,945
U.S. |  |
Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | 171,693 | 162,999
Asia |  |
Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | 125,523 | 125,839
Latin America |  |
Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | 17,674 | 15,564
EMEA |  |
Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | 10,635 | 13,031
MetLife Holdings |  |
Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | 100,407 | 102,291
Corporate & Other |  |
Insurance Liabilities [Line Items] |  |
Insurance liabilities comprised of future policy benefits, policyholder account balances and other policy-related balances | $ 1,029 | $ 1,221

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- Definition The liability as of the balance sheet date to policyholders pertaining to insured events for long-duration contracts, deposits held under the terms of insurance contracts and for funds held that are returnable under the terms of insurance contracts that were not separately reported. Also includes unearned premiums and negative value of business acquired. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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