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Summary of Investments Other Than Investments in Related Parties (Tables) | 12 Months Ended
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Dec. 31, 2013
Summary of Investments, Other than Investments in Related Parties [Abstract] |
Summary Of Investments Other Than Investments In Related Parties [Table Text Block] | REINSURANCE GROUP OF AMERICA, INCORPORATED SCHEDULE I-SUMMARY OF INVESTMENTS-OTHER THAN INVESTMENTS IN RELATED PARTIES December 31, 2013 (in millions)
Type of Investment |  | Cost |  | Fair Value |  | Amount at Which Shown in the Balance Sheets(1)
Fixed maturity securities: |  |  |  |  |  |
Bonds: |  |  |  |  |  |
United States government and government agencies and authorities |  | $ | 490 |  |  | $ | 501 |  |  | $ | 501 |
State and political subdivisions |  | 313 |  |  | 321 |  |  | 321 |
Foreign governments(2) |  | 4,594 |  |  | 5,268 |  |  | 5,268 |
Public utilities |  | 1,904 |  |  | 1,978 |  |  | 1,978 |
Mortgage-backed and asset-backed securities |  | 9,793 |  |  | 10,133 |  |  | 10,133 |
All other corporate bonds |  | 3,177 |  |  | 3,273 |  |  | 3,273 |
Total fixed maturity securities |  | 20,271 |  |  | 21,474 |  |  | 21,474 |
Equity securities: |  |  |  |  |  |
Non-redeemable preferred stock |  | 82 |  |  | 82 |  |  | 82 |
Other equity securities |  | 327 |  |  | 324 |  |  | 324 |
Total equity securities |  | 409 |  |  | 406 |  |  | 406 |
Mortgage loans on real estate |  | 2,487 |  |  |  |  | 2,487 |
Policy loans |  | 1,244 |  |  |  |  | 1,244 |
Funds withheld at interest |  | 5,772 |  |  |  |  | 5,772 |
Short-term investments |  | 139 |  |  |  |  | 139 |
Other invested assets |  | 919 |  |  |  |  | 919 |
Total investments |  | $ | 31,241 |  |  |  |  | $ | 32,441 |
(1) | Fixed maturity securities are classified as available-for-sale and carried at fair value.
(2) | Includes fixed maturities directly issued by foreign governments, supranational and foreign government-sponsored enterprises.

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