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Short Duration Contracts - Percentage annual payout - all segments (Details) | Dec. 31, 2020
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Insurance | Property, energy, marine and aviation |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 18.60%
Year Two | 41.70%
Year Three | 19.60%
Year Four | 7.80%
Year Five | 3.90%
Year Seven | 2.30%
Year Eight | (1.00%)
Year Nine | (0.60%)
Year Ten | 0.10%
Year Six | 3.30%
Insurance | Third party occurrence business |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 3.20%
Year Two | 9.20%
Year Three | 11.30%
Year Four | 11.60%
Year Five | 11.30%
Year Seven | 6.20%
Year Eight | 3.90%
Year Nine | 4.30%
Year Ten | 3.60%
Year Six | 8.80%
Insurance | Third party claims-made business |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 4.50%
Year Two | 18.70%
Year Three | 18.40%
Year Four | 12.90%
Year Five | 12.20%
Year Seven | 5.80%
Year Eight | 5.20%
Year Nine | 3.30%
Year Ten | 2.50%
Year Six | 7.10%
Insurance | Multi-line and other specialty |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 30.80%
Year Two | 27.70%
Year Three | 10.50%
Year Four | 10.40%
Year Five | 6.70%
Year Seven | 2.30%
Year Eight | 1.20%
Year Nine | 1.50%
Year Ten | 0.30%
Year Six | 4.60%
Reinsurance | Casualty |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 2.40%
Year Two | 7.20%
Year Three | 11.20%
Year Four | 12.20%
Year Five | 10.30%
Year Seven | 7.30%
Year Eight | 5.70%
Year Nine | 4.80%
Year Ten | 3.70%
Year Six | 8.40%
Reinsurance | Property catastrophe |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 20.50%
Year Two | 30.20%
Year Three | 25.10%
Year Four | 2.90%
Year Five | (1.20%)
Year Seven | 0.70%
Year Eight | 1.20%
Year Nine | 0.20%
Year Ten | (0.30%)
Year Six | 1.40%
Reinsurance | Property catastrophe and property other than property catastrophe |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 26.40%
Year Two | 39.50%
Year Three | 12.80%
Year Four | 5.20%
Year Five | 2.30%
Year Seven | 2.00%
Year Eight | 0.60%
Year Nine | 0.30%
Year Ten | (0.60%)
Year Six | 0.20%
Reinsurance | Marine and aviation |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 6.50%
Year Two | 27.20%
Year Three | 19.10%
Year Four | 10.00%
Year Five | 4.20%
Year Seven | 7.90%
Year Eight | (0.20%)
Year Nine | 0.20%
Year Ten | 0.00%
Year Six | 2.20%
Reinsurance | Other specialty |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 26.90%
Year Two | 33.90%
Year Three | 12.30%
Year Four | 5.20%
Year Five | 4.30%
Year Seven | 2.40%
Year Eight | 0.80%
Year Nine | (0.10%)
Year Ten | 0.20%
Year Six | 3.10%
Mortgage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year One | 3.00%
Year Two | 39.00%
Year Three | 27.80%
Year Four | 11.10%
Year Five | 4.90%
Year Seven | 1.10%
Year Eight | 0.60%
Year Ten | 0.30%
Year Six | 2.50%

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- Definition Percentage of average annual 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 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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