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Insurance - Short-duration insurance contracts, historical claims duration (Details) - Property and casualty insurance | Dec. 31, 2019
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Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 32.60%
Year 2 | 25.70%
Year 3 | 12.10%
Year 4 | 8.90%
Year 5 | 5.60%
Year 6 | 3.10%
Year 7 | 2.10%
Year 8 | 0.80%
Year 9 | 0.90%
Year 10 | 1.00%
Year 1, Cumulative | 32.60%
Year 2, Cumulative | 58.30%
Year 3, Cumulative | 70.40%
Year 4, Cumulative | 79.30%
Year 5, Cumulative | 84.90%
Year 6, Cumulative | 88.00%
Year 7, Cumulative | 90.10%
Year 8, Cumulative | 90.90%
Year 9, Cumulative | 91.80%
Year 10, Cumulative | 92.80%
Property and transportation |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 47.10%
Year 2 | 29.80%
Year 3 | 7.70%
Year 4 | 6.00%
Year 5 | 3.60%
Year 6 | 1.80%
Year 7 | 1.50%
Year 8 | (0.10%)
Year 9 | 0.20%
Year 10 | 0.20%
Year 1, Cumulative | 47.10%
Year 2, Cumulative | 76.90%
Year 3, Cumulative | 84.60%
Year 4, Cumulative | 90.60%
Year 5, Cumulative | 94.20%
Year 6, Cumulative | 96.00%
Year 7, Cumulative | 97.50%
Year 8, Cumulative | 97.40%
Year 9, Cumulative | 97.60%
Year 10, Cumulative | 97.80%
Specialty casualty |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 18.70%
Year 2 | 22.90%
Year 3 | 16.40%
Year 4 | 11.50%
Year 5 | 7.30%
Year 6 | 4.30%
Year 7 | 2.70%
Year 8 | 1.90%
Year 9 | 1.60%
Year 10 | 1.80%
Year 1, Cumulative | 18.70%
Year 2, Cumulative | 41.60%
Year 3, Cumulative | 58.00%
Year 4, Cumulative | 69.50%
Year 5, Cumulative | 76.80%
Year 6, Cumulative | 81.10%
Year 7, Cumulative | 83.80%
Year 8, Cumulative | 85.70%
Year 9, Cumulative | 87.30%
Year 10, Cumulative | 89.10%
Specialty financial |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 50.50%
Year 2 | 27.70%
Year 3 | 7.90%
Year 4 | 5.40%
Year 5 | 4.20%
Year 6 | 0.90%
Year 7 | 0.20%
Year 8 | (0.80%)
Year 9 | 0.00%
Year 10 | 0.00%
Year 1, Cumulative | 50.50%
Year 2, Cumulative | 78.20%
Year 3, Cumulative | 86.10%
Year 4, Cumulative | 91.50%
Year 5, Cumulative | 95.70%
Year 6, Cumulative | 96.60%
Year 7, Cumulative | 96.80%
Year 8, Cumulative | 96.00%
Year 9, Cumulative | 96.00%
Year 10, Cumulative | 96.00%
Other specialty |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 16.60%
Year 2 | 16.50%
Year 3 | 13.20%
Year 4 | 14.90%
Year 5 | 10.50%
Year 6 | 9.80%
Year 7 | 4.90%
Year 8 | 3.50%
Year 9 | 2.50%
Year 10 | 0.00%
Year 1, Cumulative | 16.60%
Year 2, Cumulative | 33.10%
Year 3, Cumulative | 46.30%
Year 4, Cumulative | 61.20%
Year 5, Cumulative | 71.70%
Year 6, Cumulative | 81.50%
Year 7, Cumulative | 86.40%
Year 8, Cumulative | 89.90%
Year 9, Cumulative | 92.40%
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=116884468&loc=SL65671329-158438 + Details
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