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Insurance - Short-duration insurance contracts, historical claims duration (Details) - Property and casualty insurance | Dec. 31, 2020
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Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 32.20%
Year 2 | 25.50%
Year 3 | 11.90%
Year 4 | 8.80%
Year 5 | 5.60%
Year 6 | 3.20%
Year 7 | 2.20%
Year 8 | 0.90%
Year 9 | 0.90%
Year 10 | 0.70%
Year 1, Cumulative | 32.20%
Year 2, Cumulative | 57.70%
Year 3, Cumulative | 69.60%
Year 4, Cumulative | 78.40%
Year 5, Cumulative | 84.00%
Year 6, Cumulative | 87.20%
Year 7, Cumulative | 89.40%
Year 8, Cumulative | 90.30%
Year 9, Cumulative | 91.20%
Year 10, Cumulative | 91.90%
Property and transportation |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 47.30%
Year 2 | 30.20%
Year 3 | 7.70%
Year 4 | 5.30%
Year 5 | 3.30%
Year 6 | 1.60%
Year 7 | 1.50%
Year 8 | (0.30%)
Year 9 | 0.20%
Year 10 | 0.10%
Year 1, Cumulative | 47.30%
Year 2, Cumulative | 77.50%
Year 3, Cumulative | 85.20%
Year 4, Cumulative | 90.50%
Year 5, Cumulative | 93.80%
Year 6, Cumulative | 95.40%
Year 7, Cumulative | 96.90%
Year 8, Cumulative | 96.60%
Year 9, Cumulative | 96.80%
Year 10, Cumulative | 96.90%
Specialty casualty |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 18.00%
Year 2 | 22.20%
Year 3 | 16.00%
Year 4 | 11.90%
Year 5 | 7.70%
Year 6 | 4.50%
Year 7 | 2.90%
Year 8 | 2.20%
Year 9 | 1.70%
Year 10 | 1.20%
Year 1, Cumulative | 18.00%
Year 2, Cumulative | 40.20%
Year 3, Cumulative | 56.20%
Year 4, Cumulative | 68.10%
Year 5, Cumulative | 75.80%
Year 6, Cumulative | 80.30%
Year 7, Cumulative | 83.20%
Year 8, Cumulative | 85.40%
Year 9, Cumulative | 87.10%
Year 10, Cumulative | 88.30%
Specialty financial |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 50.60%
Year 2 | 28.00%
Year 3 | 8.40%
Year 4 | 4.00%
Year 5 | 3.10%
Year 6 | 1.50%
Year 7 | 1.00%
Year 8 | (0.30%)
Year 9 | (0.40%)
Year 10 | 0.70%
Year 1, Cumulative | 50.60%
Year 2, Cumulative | 78.60%
Year 3, Cumulative | 87.00%
Year 4, Cumulative | 91.00%
Year 5, Cumulative | 94.10%
Year 6, Cumulative | 95.60%
Year 7, Cumulative | 96.60%
Year 8, Cumulative | 96.30%
Year 9, Cumulative | 95.90%
Year 10, Cumulative | 96.60%
Other specialty |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance [Line Items] |
Year 1 | 14.80%
Year 2 | 15.70%
Year 3 | 11.60%
Year 4 | 17.10%
Year 5 | 10.20%
Year 6 | 8.40%
Year 7 | 4.80%
Year 8 | 3.80%
Year 9 | 2.60%
Year 10 | 0.00%
Year 1, Cumulative | 14.80%
Year 2, Cumulative | 30.50%
Year 3, Cumulative | 42.10%
Year 4, Cumulative | 59.20%
Year 5, Cumulative | 69.40%
Year 6, Cumulative | 77.80%
Year 7, Cumulative | 82.60%
Year 8, Cumulative | 86.40%
Year 9, Cumulative | 89.00%
Year 10, Cumulative | 89.00%

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 fourth 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 ninth 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 seventh 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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