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v3.10.0.1

Segment Information (Net Premiums Earned By Geographic Region) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
North America [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of net premiums earned by geographic region |  | 70.00% | 70.00% | 70.00%
Europe [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of net premiums earned by geographic region | [1] | 11.00% | 11.00% | 12.00%
Asia Pacific and Far East [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of net premiums earned by geographic region |  | 12.00% | 12.00% | 11.00%
Latin America [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of net premiums earned by geographic region |  | 7.00% | 7.00% | 7.00%
[1] | (1) Europe includes Eurasia and Africa regions.

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- Definition Percentage of net premiums earned by geographic region + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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