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Valuation and Qualifying Accounts (Tables) | 12 Months Ended
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Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract] |
Valuation And Qualifying Accounts [Table Text Block] | REINSURANCE GROUP OF AMERICA, INCORPORATED SCHEDULE V—VALUATION AND QUALIFYING ACCOUNTS (in millions)
Description |  | Balance at Beginning of Period |  | Charges to Costs and Expenses |  | Charged to Other Accounts |  | Deductions |  | Balance at End of Period
2013 |  |  |  |  |  |  |  |  |  |
Allowance on income taxes |  | $ | 10.1 |  |  | $ | 23.5 |  |  | $ | 68.6 |  |  | $ | — |  |  | $ | 102.2 |
Valuation allowance for mortgage loans |  | 11.6 |  |  | 1.9 |  |  | — |  |  | 3.4 |  |  | 10.1 |
2012 |  |  |  |  |  |  |  |  |  |
Allowance on income taxes |  | $ | 8.6 |  |  | $ | — |  |  | $ | 1.6 |  |  | $ | 0.1 |  |  | $ | 10.1 |
Valuation allowance for mortgage loans |  | 11.8 |  |  | 6.3 |  |  | — |  |  | 6.5 |  |  | 11.6 |
2011 |  |  |  |  |  |  |  |  |  |
Allowance on income taxes |  | $ | 3.9 |  |  | $ | — |  |  | $ | 5.4 |  |  | $ | 0.7 |  |  | $ | 8.6 |
Valuation allowance for mortgage loans |  | 6.2 |  |  | 9.5 |  |  | — |  |  | 3.9 |  |  | 11.8 |

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- Definition A schedule of allowance and reserve accounts including their beginning and ending balances, as well as a reconciliation by type of activity during the period. Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements, table text block. + References No definition available. + Details
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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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Period Type: | duration