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Liability for Unpaid Claims (Tables) | 12 Months Ended
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Dec. 31, 2011
Insurance [Abstract] |
Schedule of Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] | Changes in the liability for unpaid claims and claim adjustment expenses are as follows:
| 2011 |  | 2010 |  | 2009
| (in millions of dollars)
Balance at January 1 | $ | 24,339.4 |  |  | $ | 24,585.7 |  |  | $ | 24,419.0 |
Less Reinsurance Recoverable | 2,028.2 |  |  | 2,179.3 |  |  | 2,226.3 |
Net Balance at January 1 | 22,311.2 |  |  | 22,406.4 |  |  | 22,192.7 |
Incurred Related to |  |  |  |  |
Current Year | 4,684.4 |  |  | 4,517.9 |  |  | 4,433.3 |
Prior Years |  |  |  |  |
Interest | 1,262.9 |  |  | 1,268.9 |  |  | 1,285.4 |
All Other Incurred | 209.1 |  |  | (61.3 | ) |  | (34.7 | )
Foreign Currency | (10.9 | ) |  | (73.9 | ) |  | 206.7 |
Total Incurred | 6,145.5 |  |  | 5,651.6 |  |  | 5,890.7 |
Paid Related to |  |  |  |  |
Current Year | (1,588.6 | ) |  | (1,514.8 | ) |  | (1,451.6 | )
Prior Years | (4,324.2 | ) |  | (4,232.0 | ) |  | (4,225.4 | )
Total Paid | (5,912.8 | ) |  | (5,746.8 | ) |  | (5,677.0 | )
Net Balance at December 31 | 22,543.9 |  |  | 22,311.2 |  |  | 22,406.4 |
Plus Reinsurance Recoverable | 2,042.6 |  |  | 2,028.2 |  |  | 2,179.3 |
Balance at December 31 | $ | 24,586.5 |  |  | $ | 24,339.4 |  |  | $ | 24,585.7 |
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] | A reconciliation of policy and contract benefits and reserves for future policy and contract benefits as reported in our consolidated balance sheets to the liability for unpaid claims and claim adjustment expenses is as follows:
| December 31
| 2011 |  | 2010 |  | 2009
| (in millions of dollars)
Policy and Contract Benefits | $ | 1,494.0 |  |  | $ | 1,565.0 |  |  | $ | 1,736.9 |
Reserves for Future Policy and Contract Benefits | 43,051.9 |  |  | 39,715.0 |  |  | 37,740.8 |
Total | 44,545.9 |  |  | 41,280.0 |  |  | 39,477.7 |
Less: |  |  |  |  |
Life Reserves for Future Policy and Contract Benefits | 7,454.2 |  |  | 7,380.7 |  |  | 7,247.5 |
Accident and Health Active Life Reserves | 7,259.6 |  |  | 6,451.6 |  |  | 5,999.8 |
Unrealized Adjustment to Reserves for Future Policy and Contract Benefits | 5,245.6 |  |  | 3,108.3 |  |  | 1,644.7 |
Liability for Unpaid Claims and Claim Adjustment Expenses | $ | 24,586.5 |  |  | $ | 24,339.4 |  |  | $ | 24,585.7 |

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- Definition Tabular disclosure of the specific area or cause identified in costs incurred in the claims settlement process during the specified year caused by catastrophe, revised estimate due to changes in historical actual claims results, changes in environmental issues and any other changes affecting reserve amounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6482485&loc=d3e14764-158437 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-5 -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section W Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.W) -URI http://asc.fasb.org/extlink&oid=6483420&loc=d3e570705-122907 + Details
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- Definition Tabular disclosure of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period. The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claim adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-5 -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6482485&loc=d3e14764-158437 + Details
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