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Supplemental Schedule of Reinsurance (Tables) | 12 Months Ended
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Dec. 31, 2023
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
2023 |  |  |  |  |  |  |  |  |  |
Life reinsurance in force |  | $ | 924 |  |  | $ | 69,242 |  |  | $ | 3,704,061 |  |  | $ | 3,635,743 |  |  | 101.9 | %
Premiums |  |  |  |  |  |  |  |  |  |
U.S. and Latin America: |  |  |  |  |  |  |  |  |  |
Traditional |  | $ | 29 |  |  | $ | 195 |  |  | $ | 7,189 |  |  | $ | 7,023 |  |  | 102.4 | %
Financial Solutions |  | 1,448 |  |  | 3 |  |  | 76 |  |  | 1,521 |  |  | 5.0 |
Canada: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 62 |  |  | 1,277 |  |  | 1,215 |  |  | 105.1 |
Financial Solutions |  | — |  |  | — |  |  | 90 |  |  | 90 |  |  | 100.0 |
Europe, Middle East and Africa: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 30 |  |  | 1,805 |  |  | 1,775 |  |  | 101.7 |
Financial Solutions |  | — |  |  | 246 |  |  | 704 |  |  | 458 |  |  | 153.7 |
Asia Pacific: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 137 |  |  | 2,922 |  |  | 2,785 |  |  | 104.9 |
Financial Solutions |  | — |  |  | — |  |  | 218 |  |  | 218 |  |  | 100.0 |
Total |  | $ | 1,477 |  |  | $ | 673 |  |  | $ | 14,281 |  |  | $ | 15,085 |  |  | 94.7 |
2022 |  |  |  |  |  |  |  |  |  |
Life reinsurance in force |  | $ | 1,027 |  |  | $ | 151,569 |  |  | $ | 3,400,735 |  |  | $ | 3,250,193 |  |  | 104.6 | %
Premiums |  |  |  |  |  |  |  |  |  |
U.S. and Latin America: |  |  |  |  |  |  |  |  |  |
Traditional |  | $ | 25 |  |  | $ | 421 |  |  | $ | 6,986 |  |  | $ | 6,590 |  |  | 106.0 | %
Financial Solutions |  | 1 |  |  | — |  |  | 65 |  |  | 66 |  |  | 98.5 |
Canada: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 71 |  |  | 1,290 |  |  | 1,219 |  |  | 105.8 |
Financial Solutions |  | — |  |  | — |  |  | 95 |  |  | 95 |  |  | 100.0 |
Europe, Middle East and Africa: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 32 |  |  | 1,768 |  |  | 1,736 |  |  | 101.8 |
Financial Solutions |  | — |  |  | 137 |  |  | 623 |  |  | 486 |  |  | 128.2 |
Asia Pacific: |  |  |  |  |  |  |  |  |  |
Traditional |  | — |  |  | 117 |  |  | 2,767 |  |  | 2,650 |  |  | 104.4 |
Financial Solutions |  | — |  |  | — |  |  | 236 |  |  | 236 |  |  | 100.0 |
Total |  | $ | 26 |  |  | $ | 778 |  |  | $ | 13,830 |  |  | $ | 13,078 |  |  | 105.8 |
2021 |  |  |  |  |  |  |  |  |  |
Life reinsurance 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 |  | — |  |  | 56 |  |  | 1,250 |  |  | 1,194 |  |  | 104.7 |
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 |  |  | $ | 874 |  |  | $ | 13,354 |  |  | $ | 12,513 |  |  | 106.7 |

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