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Summary of Investments Other Than Investments in Related Parties | 12 Months Ended
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Dec. 31, 2022
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract] |
Summary of Investments Other Than Investments in Related Parties | REINSURANCE GROUP OF AMERICA, INCORPORATED SCHEDULE I-SUMMARY OF INVESTMENTS-OTHER THAN INVESTMENTS IN RELATED PARTIES December 31, 2022 (in millions)
Type of Investment |  | Amortized Cost |  | Estimated Fair Value |  | Amount at Which Shown in the Balance Sheets(1) |
Fixed maturity securities: |  |  |  |  |  |  |
United States government and government agencies and authorities |  | $ | 1,690 |  |  | $ | 1,482 |  |  | $ | 1,482 |  |
State and political subdivisions |  | 1,282 |  |  | 1,119 |  |  | 1,119 |  |
Foreign governments(2) |  | 10,515 |  |  | 9,889 |  |  | 9,889 |  |
Public utilities |  | 4,788 |  |  | 4,032 |  |  | 4,032 |  |
Mortgage-backed and asset-backed securities |  | 7,213 |  |  | 6,442 |  |  | 6,442 |  |
All other corporate bonds |  | 34,175 |  |  | 29,937 |  |  | 29,937 |  |
Total fixed maturity securities |  | $ | 59,663 |  |  | $ | 52,901 |  |  | $ | 52,901 |  |
Equity securities |  | $ | 175 |  |  | $ | 134 |  |  | $ | 134 |  |
Mortgage loans |  | 6,590 |  |  |  |  | 6,590 |  |
Policy loans |  | 1,231 |  |  |  |  | 1,231 |  |
Funds withheld at interest |  | 6,003 |  |  |  |  | 6,003 |  |
Limited partnerships and real estate joint ventures |  | 2,327 |  |  |  |  | 2,327 |  |
Short-term investments |  | 154 |  |  |  |  | 154 |  |
Other invested assets |  | 1,140 |  |  |  |  | 1,140 |  |
Total investments |  | $ | 77,283 |  |  |  |  | $ | 70,480 |  |
(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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- Definition The entire disclosure of information about investment held by insurance company, excluding investment in related party. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 15 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 7 -Subparagraph (SX 210.12-15) -URI https://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010 + Details
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