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Supplemental Schedule of Reinsurance (Tables) | 12 Months Ended
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Dec. 31, 2021
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract] |
Supplemental Schedule Of Reinsurance Premiums For Insurance Companies [Table Text Block] | REINSURANCE GROUP OF AMERICA, INCORPORATED SCHEDULE IV—REINSURANCE (in millions)
|  | As of or for the Year ended December 31,
|  | Gross Amount |  | Ceded to Other Companies |  | Assumed from Other Companies |  | Net Amounts |  | Percentage of Amount Assumed to Net
2021 |  |  |  |  |  |  |  |  |  |
Life insurance in force |  | $ | 1,117 |  |  | $ | 166,842 |  |  | $ | 3,467,054 |  |  | $ | 3,301,329 |  |  | 105.0 | %
Premiums |  |  |  |  |  |  |  |  |  |
U.S. and Latin America: |  |  |  |  |  |  |  |  |  |
Traditional |  | $ | 26 |  |  | $ | 472 |  |  | $ | 6,690 |  |  | $ | 6,244 |  |  | 107.1 | %
Financial Solutions |  | 2 |  |  | — |  |  | 53 |  |  | 55 |  |  | 96.4 |
Canada: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 50 |  |  | 1,244 |  |  | 1,194 |  |  | 104.2 |
Financial Solutions |  | — |  |  | — |  |  | 90 |  |  | 90 |  |  | 100.0 |
Europe, Middle East and Africa: |  |  |  |  |  |  |  |  |  |
Traditional |  | 5 |  |  | 32 |  |  | 1,765 |  |  | 1,738 |  |  | 101.6 |
Financial Solutions |  | — |  |  | 202 |  |  | 552 |  |  | 350 |  |  | 157.7 |
Asia Pacific: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 112 |  |  | 2,736 |  |  | 2,624 |  |  | 104.3 |
Financial Solutions |  | — |  |  | — |  |  | 218 |  |  | 218 |  |  | 100.0 |
Total |  | $ | 33 |  |  | $ | 868 |  |  | $ | 13,348 |  |  | $ | 12,513 |  |  | 106.7 |
2020 |  |  |  |  |  |  |  |  |  |
Life insurance in force |  | $ | 1,990 |  |  | $ | 184,625 |  |  | $ | 3,480,692 |  |  | $ | 3,298,057 |  |  | 105.5 | %
Premiums |  |  |  |  |  |  |  |  |  |
U.S. and Latin America: |  |  |  |  |  |  |  |  |  |
Traditional |  | $ | 23 |  |  | $ | 585 |  |  | $ | 6,399 |  |  | $ | 5,837 |  |  | 109.6 | %
Financial Solutions |  | 3 |  |  | — |  |  | 50 |  |  | 53 |  |  | 94.3 |
Canada: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 54 |  |  | 1,106 |  |  | 1,052 |  |  | 105.1 |
Financial Solutions |  | — |  |  | — |  |  | 83 |  |  | 83 |  |  | 100.0 |
Europe, Middle East and Africa: |  |  |  |  |  |  |  |  |  |
Traditional |  | 32 |  |  | 24 |  |  | 1,548 |  |  | 1,556 |  |  | 99.5 |
Financial Solutions |  | — |  |  | 178 |  |  | 430 |  |  | 252 |  |  | 170.6 |
Asia Pacific: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 106 |  |  | 2,787 |  |  | 2,681 |  |  | 104.0 |
Financial Solutions |  | — |  |  | — |  |  | 180 |  |  | 180 |  |  | 100.0 |
Total |  | $ | 58 |  |  | $ | 947 |  |  | $ | 12,583 |  |  | $ | 11,694 |  |  | 107.6 |
2019 |  |  |  |  |  |  |  |  |  |
Life insurance in force |  | $ | 1,316 |  |  | $ | 192,864 |  |  | $ | 3,480,206 |  |  | $ | 3,288,658 |  |  | 105.8 | %
Premiums |  |  |  |  |  |  |  |  |  |
U.S. and Latin America: |  |  |  |  |  |  |  |  |  |
Traditional |  | $ | 29 |  |  | $ | 591 |  |  | $ | 6,291 |  |  | 5,729 |  |  | 109.8 | %
Financial Solutions |  | 2 |  |  | — |  |  | 37 |  |  | 39 |  |  | 95.4 |
Canada: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 54 |  |  | 1,120 |  |  | 1,066 |  |  | 105.0 |
Financial Solutions |  | — |  |  | — |  |  | 89 |  |  | 89 |  |  | 100.0 |
Europe, Middle East and Africa: |  |  |  |  |  |  |  |  |  |
Traditional |  | 45 |  |  | 52 |  |  | 1,449 |  |  | 1,442 |  |  | 100.6 |
Financial Solutions |  | — |  |  | 148 |  |  | 366 |  |  | 218 |  |  | 167.9 |
Asia Pacific: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 84 |  |  | 2,652 |  |  | 2,568 |  |  | 103.2 |
Financial Solutions |  | — |  |  | — |  |  | 146 |  |  | 146 |  |  | 100.0 |
Total |  | $ | 76 |  |  | $ | 929 |  |  | $ | 12,150 |  |  | $ | 11,297 |  |  | 107.5 |

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