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Reserve for Unpaid Losses and Loss Adjustment Expenses - Average Annual Payout of Incurred Claims by Age, P&C (Details) | Dec. 31, 2019
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Workers’ compensation |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 15.60%
2nd Year | 19.30%
3rd Year | 12.70%
4th Year | 8.70%
5th Year | 5.90%
6th Year | 4.30%
7th Year | 2.90%
8th Year | 2.60%
9th Year | 1.80%
10th Year | 1.60%
General liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 2.90%
2nd Year | 8.40%
3rd Year | 15.00%
4th Year | 18.50%
5th Year | 15.80%
6th Year | 10.50%
7th Year | 7.50%
8th Year | 4.40%
9th Year | 2.50%
10th Year | 1.90%
Marine [Member] |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 26.70%
2nd Year | 32.30%
3rd Year | 17.90%
4th Year | 8.80%
5th Year | 7.10%
6th Year | 2.30%
7th Year | 2.60%
8th Year | 2.50%
Package business |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 37.40%
2nd Year | 21.60%
3rd Year | 10.40%
4th Year | 8.70%
5th Year | 5.80%
6th Year | 3.30%
7th Year | 2.20%
8th Year | 1.00%
9th Year | 0.60%
10th Year | 0.30%
Commercial automobile physical damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 89.10%
2nd Year | 7.80%
3rd Year | (0.40%)
Professional liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 5.40%
2nd Year | 18.80%
3rd Year | 17.50%
4th Year | 14.00%
5th Year | 11.10%
6th Year | 5.70%
7th Year | 2.70%
8th Year | 1.00%
9th Year |
10th Year |
Bond |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 13.80%
2nd Year | 27.20%
3rd Year | 12.60%
4th Year | 4.80%
5th Year | 1.90%
6th Year | 2.20%
7th Year | 5.70%
8th Year | 0.50%
9th Year | 1.80%
10th Year | (6.20%)
Assumed Reinsurance [Member] |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 37.70%
2nd Year | 39.00%
3rd Year | 7.40%
4th Year | 4.70%
5th Year | 8.80%
6th Year | 2.30%
7th Year | 0.90%
8th Year | 0.70%
Personal automobile physical damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 96.30%
2nd Year | 3.00%
3rd Year | (0.30%)
Homeowners |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 69.60%
2nd Year | 21.50%
3rd Year | 3.30%
4th Year | 1.20%
5th Year | 0.60%
6th Year | 0.30%
7th Year | 0.10%
8th Year | 0.10%
9th Year | 0.00%
10th Year | 0.10%
Property and Casualty, Commercial Insurance [Member] | Property |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 53.80%
2nd Year | 30.50%
3rd Year | 7.40%
4th Year | 3.10%
5th Year | 0.80%
6th Year | 0.30%
7th Year | 0.10%
8th Year | (0.20%)
9th Year |
10th Year |
Property and Casualty, Commercial Insurance [Member] | Automobile liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 16.90%
2nd Year | 21.00%
3rd Year | 20.80%
4th Year | 17.80%
5th Year | 11.80%
6th Year | 4.30%
7th Year | 2.70%
8th Year | 1.40%
9th Year | 0.70%
10th Year | 0.30%
Property and Casualty, Personal Insurance [Member] | Automobile liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 36.30%
2nd Year | 33.10%
3rd Year | 15.60%
4th Year | 7.60%
5th Year | 3.20%
6th Year | 1.10%
7th Year | 0.50%
8th Year | 0.20%
9th Year | 0.10%
10th Year | 0.00%
Group Benefits | Group long-term disability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
1st Year | 7.40%
2nd Year | 24.80%
3rd Year | 15.50%
4th Year | 8.60%
5th Year | 6.30%
6th Year | 5.40%
7th Year | 4.60%
8th Year | 3.90%
9th Year | 3.40%

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