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Consolidated Supplementary Insurance Information (Balance Sheet Items) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | Dec. 31, 2020
--- | --- | --- | --- | --- | ---
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | $ 20,151 | $ 19,653 | $ 19,806 | $ 20,417 |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 216,142 | 205,646 |  |  |
Policyholder account balances | 219,269 | 210,597 |  |  |
Market Risk Benefits (Assets) Liabilities | 2,893 | 3,483 |  |  |
Policyholder Dividends Payable | 386 | 387 |  |  |
Unearned Premiums | 2,160 | 2,415 |  |  |
Unearned Revenue | 4,537 | 4,106 | 3,625 |  | $ 3,163
Group Benefits |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 258 | 264 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 17,863 | 16,971 |  |  |
Policyholder account balances | 7,692 | 8,028 |  |  |
Market Risk Benefits (Assets) Liabilities | 0 | 0 |  |  |
Policyholder Dividends Payable | 0 | 0 |  |  |
Unearned Premiums | 446 | 349 |  |  |
Unearned Revenue | 0 | 0 |  |  |
Retirement and Income Solutions |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 413 | 286 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 71,223 | 64,376 |  |  |
Policyholder account balances | 82,405 | 80,066 |  |  |
Market Risk Benefits (Assets) Liabilities | (13) | 8 |  |  |
Policyholder Dividends Payable | 0 | 0 |  |  |
Unearned Premiums | 7 | 3 |  |  |
Unearned Revenue | 31 | 36 | 38 |  | 42
Asia |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 11,983 | 11,560 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 35,683 | 34,642 |  |  |
Policyholder account balances | 92,063 | 84,165 |  |  |
Market Risk Benefits (Assets) Liabilities | 234 | 284 |  |  |
Policyholder Dividends Payable | 75 | 72 |  |  |
Unearned Premiums | 1,532 | 1,889 |  |  |
Unearned Revenue | 2,850 | 2,382 | 2,033 |  | 1,616
Latin America |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 2,447 | 2,087 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 14,636 | 13,426 |  |  |
Policyholder account balances | 6,368 | 5,383 |  |  |
Market Risk Benefits (Assets) Liabilities | 0 | 0 |  |  |
Policyholder Dividends Payable | 0 | 0 |  |  |
Unearned Premiums | 2 | 2 |  |  |
Unearned Revenue | 989 | 848 | 795 |  | 835
EMEA |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 1,731 | 1,607 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 3,463 | 3,269 |  |  |
Policyholder account balances | 7,578 | 7,289 |  |  |
Market Risk Benefits (Assets) Liabilities | (53) | (37) |  |  |
Policyholder Dividends Payable | 0 | 0 |  |  |
Unearned Premiums | 18 | 14 |  |  |
Unearned Revenue | 608 | 559 | 521 |  | 482
MetLife Holdings |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 3,289 | 3,819 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 72,410 | 71,914 |  |  |
Policyholder account balances | 23,178 | 25,688 |  |  |
Market Risk Benefits (Assets) Liabilities | 2,722 | 3,225 |  |  |
Policyholder Dividends Payable | 311 | 315 |  |  |
Unearned Premiums | 155 | 158 |  |  |
Unearned Revenue | 59 | 281 | $ 238 |  | $ 188
Corporate & Other |  |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |  |
DAC and VOBA | 30 | 30 |  |  |
Future Policy Benefits, Other Policy-Related Balances and Policyholder Dividend Obligation | 864 | 1,048 |  |  |
Policyholder account balances | (15) | (22) |  |  |
Market Risk Benefits (Assets) Liabilities | 3 | 3 |  |  |
Policyholder Dividends Payable | 0 | 0 |  |  |
Unearned Premiums | 0 | 0 |  |  |
Unearned Revenue | $ 0 | $ 0 |  |  |

X
- Definition Amount on a net basis, before effect of reinsurance and after accumulated increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References No definition available. + Details
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- Definition The sum of the following as of the balance sheet date: 1) The known and estimated amounts payable as of the balance sheet date to policyholders pertaining to insured events for long-duration contracts, which can be viewed as either (a) the present value of future benefits to be paid to or on behalf of policyholders and expenses less the present value of future net premiums payable under the insurance contracts or (b) the accumulated amount of net premiums already collected less the accumulated amount of benefits and expenses already paid to or on behalf of policyholders, 2) The liability to the policyholders for funds held that are returnable under the terms of insurance contracts that were not separately reported and 3) The excess of the cumulative actual closed block earnings over the cumulative expected (actuarially determined) closed block earnings (each) for the period from the actuarial calculation date to the date of measurement. The excess will result in future dividends to closed block policyholders, unless offset by less favorable than expected future performance of the closed block. The policyholder dividend obligation, which may not have a negative balance, recognizes that a portion of earnings in certain cases will not inure to the stockholders of the insurance entity. + References No definition available. + Details
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