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Insurance | 3 Months Ended
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Mar. 31, 2017
Insurance [Abstract] |
Unpaid Losses and Loss Adjustment Expenses | Insurance Property and Casualty Insurance Reserves The following table provides an analysis of changes in the liability for losses and loss adjustment expenses during the first three months of 2017 and 2016 (in millions):
| Three months ended March 31,
| 2017 |  | 2016
Balance at beginning of year | $ | 8,563 |  |  | $ | 8,127 |
Less reinsurance recoverables, net of allowance | 2,302 |  |  | 2,201 |
Net liability at beginning of year | 6,261 |  |  | 5,926 |
Provision for losses and LAE occurring in the current period | 637 |  |  | 609 |
Net increase (decrease) in the provision for claims of prior years | (28 | ) |  | (28 | )
Total losses and LAE incurred | 609 |  |  | 581 |
Payments for losses and LAE of: |  |  |
Current year | (84 | ) |  | (80 | )
Prior years | (470 | ) |  | (467 | )
Total payments | (554 | ) |  | (547 | )
Foreign currency translation and other | 8 |  |  | 11 |
Net liability at end of period | 6,324 |  |  | 5,971 |
Add back reinsurance recoverables, net of allowance | 2,297 |  |  | 2,137 |
Gross unpaid losses and LAE included in the balance sheet at end of period | $ | 8,621 |  |  | $ | 8,108 |
The net decrease in the provision for claims of prior years during the first three months of 2017 reflects (i) lower than expected losses in the crop and equine operations and lower than expected claim severity in the property and inland marine business (all within the Property and transportation sub-segment), (ii) lower than anticipated claim severity and frequency in the workers’ compensation businesses and lower than anticipated claim severity at Neon (all within the Specialty casualty sub-segment) and (iii) lower than anticipated claim severity in the fidelity business and lower than expected claim frequency and severity in the surety business (all within the Specialty financial sub-segment). This favorable development was partially offset by (i) higher than anticipated claim severity in the ocean marine business (within the Property and transportation sub-segment), (ii) higher than anticipated claim severity in the targeted markets business and higher than anticipated claim severity and frequency in the excess and surplus lines business (all within the Specialty casualty sub-segment) and (iii) an adjustment to the deferred gain on the retroactive reinsurance transaction entered into in connection with the sale of businesses in 1998 (included in Other specialty sub-segment). The net decrease in the provision for claims of prior years during the first three months of 2016 reflects (i) lower than expected losses in the crop operations and lower than expected claim severity in the property and inland marine and trucking businesses (all within the Property and transportation sub-segment), (ii) lower than anticipated claim severity in workers’ compensation business and in directors and officers liability insurance (all within the Specialty casualty sub-segment) and (iii) lower than anticipated claim severity in the fidelity business and lower than expected claim frequency and severity in the surety business (all within the Specialty financial sub-segment). This favorable development was partially offset by (i) higher than anticipated claim frequency in the ocean marine business (within the Property and transportation sub-segment), (ii) adverse reserve development at Neon and higher than anticipated severity in contractor claims (all within the Specialty casualty sub-segment) and (iii) higher than anticipated claim frequency in the financial institutions business (within the Specialty financial sub-segment).

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- Definition The entire disclosure for liabilities related to future policy benefits and unpaid claims and claim adjustments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6482852&loc=d3e14931-158439 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14754-158437 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.13(a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: 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=65670824&loc=d3e14764-158437 + Details
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