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Insurance - Short-duration insurance contracts, historical claims duration (Details) - Property and casualty insurance | Dec. 31, 2018
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Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 32.60%
Year 2 | 25.50%
Year 3 | 12.20%
Year 4 | 8.80%
Year 5 | 5.50%
Year 6 | 3.20%
Year 7 | 2.00%
Year 8 | 1.20%
Year 9 | 0.80%
Year 10 | 0.70%
Year 1, Cumulative | 32.60%
Year 2, Cumulative | 58.10%
Year 3, Cumulative | 70.30%
Year 4, Cumulative | 79.10%
Year 5, Cumulative | 84.60%
Year 6, Cumulative | 87.80%
Year 7, Cumulative | 89.80%
Year 8, Cumulative | 91.00%
Year 9, Cumulative | 91.80%
Year 10, Cumulative | 92.50%
Property and transportation |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 46.20%
Year 2 | 28.70%
Year 3 | 8.60%
Year 4 | 6.50%
Year 5 | 3.70%
Year 6 | 2.00%
Year 7 | 1.40%
Year 8 | 0.40%
Year 9 | 0.50%
Year 10 | 0.20%
Year 1, Cumulative | 46.20%
Year 2, Cumulative | 74.90%
Year 3, Cumulative | 83.50%
Year 4, Cumulative | 90.00%
Year 5, Cumulative | 93.70%
Year 6, Cumulative | 95.70%
Year 7, Cumulative | 97.10%
Year 8, Cumulative | 97.50%
Year 9, Cumulative | 98.00%
Year 10, Cumulative | 98.20%
Specialty casualty |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 19.10%
Year 2 | 23.20%
Year 3 | 16.20%
Year 4 | 11.10%
Year 5 | 7.00%
Year 6 | 4.30%
Year 7 | 2.60%
Year 8 | 1.90%
Year 9 | 1.30%
Year 10 | 1.00%
Year 1, Cumulative | 19.10%
Year 2, Cumulative | 42.30%
Year 3, Cumulative | 58.50%
Year 4, Cumulative | 69.60%
Year 5, Cumulative | 76.60%
Year 6, Cumulative | 80.90%
Year 7, Cumulative | 83.50%
Year 8, Cumulative | 85.40%
Year 9, Cumulative | 86.70%
Year 10, Cumulative | 87.70%
Specialty financial |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 50.50%
Year 2 | 26.40%
Year 3 | 7.50%
Year 4 | 5.80%
Year 5 | 4.70%
Year 6 | 1.70%
Year 7 | 0.50%
Year 8 | (0.10%)
Year 9 | 0.00%
Year 10 | (0.50%)
Year 1, Cumulative | 50.50%
Year 2, Cumulative | 76.90%
Year 3, Cumulative | 84.40%
Year 4, Cumulative | 90.20%
Year 5, Cumulative | 94.90%
Year 6, Cumulative | 96.60%
Year 7, Cumulative | 97.10%
Year 8, Cumulative | 97.00%
Year 9, Cumulative | 97.00%
Year 10, Cumulative | 96.50%
Other specialty |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 18.70%
Year 2 | 17.00%
Year 3 | 12.60%
Year 4 | 14.10%
Year 5 | 9.30%
Year 6 | 7.60%
Year 7 | 3.40%
Year 8 | 3.70%
Year 9 | (0.30%)
Year 10 | 6.30%
Year 1, Cumulative | 18.70%
Year 2, Cumulative | 35.70%
Year 3, Cumulative | 48.30%
Year 4, Cumulative | 62.40%
Year 5, Cumulative | 71.70%
Year 6, Cumulative | 79.30%
Year 7, Cumulative | 82.70%
Year 8, Cumulative | 86.40%
Year 9, Cumulative | 86.10%
Year 10, Cumulative | 92.40%

X
- Definition Percentage on a cumulative basis of average payout, after reinsurance, in the eighth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References No definition available. + Details
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- Definition Percentage on a cumulative basis of average payout, after reinsurance, in the fifth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References No definition available. + Details
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- Definition Percentage on a cumulative basis of average payout, after reinsurance, in the tenth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References No definition available. + Details
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- Definition Percentage of average annual payout, after reinsurance, in the first year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=99384497&loc=SL65671329-158438 + Details
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