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Future Policy Benefits - FPB Income Statement (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | $ 18,257 | $ 23,478 | $ 15,712
Interest Expense (2) | 5,393 | 4,930 | 4,805
Fixed & Immediate Annuities | Retirement and Income Solutions |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 6,660 | 12,748 | 3,965
Interest Expense (2) | 2,897 | 2,519 | 2,336
Whole and Term Life & Endowments | Asia |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 1,124 | 1,144 | 1,457
Interest Expense (2) | 311 | 320 | 371
Accident & health insurance | Asia |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 3,364 | 3,602 | 4,203
Interest Expense (2) | 249 | 248 | 267
Fixed Annuity | Latin America |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 1,074 | 712 | 410
Interest Expense (2) | 312 | 289 | 300
Long-term Care | MetLife Holdings |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 731 | 734 | 736
Interest Expense (2) | 776 | 745 | 711
Fixed & Immediate Annuities for Deferred Profit Liabilities | Retirement and Income Solutions |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Interest Expense (2) | 167 | 154 | 147
Fixed Annuity for Deferred Profit Liabilities | Latin America |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Interest Expense (2) | 22 | 19 | 20
Whole and Term Life & Endowments for Deferred Profit Liabilities | Asia |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Interest Expense (2) | 31 | 26 | 18
Accident and Health Insurance Product Line for Deferred Profit Liabilities | Asia |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Interest Expense (2) | 18 | 16 | 14
Variable Life | Asia |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 89 | 58 | 28
Interest Expense (2) | 19 | 21 | 25
Universal and Variable Universal Life | Asia |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | (31) | (26) | 19
Interest Expense (2) | 7 | 7 | 9
Universal and Variable Universal Life | MetLife Holdings |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 730 | 805 | 831
Interest Expense (2) | 124 | 116 | 107
Long-Duration Insurance, Other |  |  |
Principal Transaction Revenue [Line Items] |  |  |
Gross Premiums or Assessments (1) | 4,516 | 3,701 | 4,063
Interest Expense (2) | $ 460 | $ 450 | $ 480

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