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Future Policy Benefits - FPB Income Statement (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | $ 13,602 | $ 12,993
Interest Expense (2) | 4,241 | 4,018
Fixed & Immediate Annuities | RIS |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 5,098 | 4,433
Interest Expense (2) | 2,326 | 2,145
Whole and Term Life & Endowments | Asia |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 850 | 841
Interest Expense (2) | 224 | 235
Accident & health insurance | Asia |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 2,324 | 2,580
Interest Expense (2) | 185 | 188
Fixed Annuity | Latin America |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 773 | 799
Interest Expense (2) | 240 | 242
Long-term Care | MetLife Holdings |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 543 | 547
Interest Expense (2) | 599 | 579
Fixed & Immediate Annuities for Deferred Profit Liabilities | RIS |  |
Principal Transaction Revenue [Line Items] |  |
Interest Expense (2) | 133 | 124
Whole and Term Life & Endowments for Deferred Profit Liabilities | Asia |  |
Principal Transaction Revenue [Line Items] |  |
Interest Expense (2) | 27 | 22
Accident and Health Insurance Product Line for Deferred Profit Liabilities | Asia |  |
Principal Transaction Revenue [Line Items] |  |
Interest Expense (2) | 15 | 13
Fixed Annuity for Deferred Profit Liabilities | Latin America |  |
Principal Transaction Revenue [Line Items] |  |
Interest Expense (2) | 15 | 17
Variable Life | Asia |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 85 | 60
Interest Expense (2) | 13 | 15
Universal and Variable Universal Life | Asia |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | (32) | (20)
Interest Expense (2) | 4 | 5
Universal and Variable Universal Life | MetLife Holdings |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 492 | 559
Interest Expense (2) | 98 | 92
Long-Duration Insurance, Other |  |
Principal Transaction Revenue [Line Items] |  |
Gross Premiums or Assessments (1) | 3,469 | 3,194
Interest Expense (2) | $ 362 | $ 341

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