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Equity - Regulatory Capital Requirements, Additional Information (Details) | Dec. 31, 2017 | Dec. 31, 2016
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Property and Casualty Insurance Subsidiaries |  |
Statutory Accounting Practices [Line Items] |  |
RBC company action level | 300.00% | 300.00%
Health, life and annuity subsidiaries |  |
Statutory Accounting Practices [Line Items] |  |
RBC company action level | 300.00% | 300.00%

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- Definition Statutory Accounting Practices, Risk Based Capital Company Action Level + References No definition available. + Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |