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Statutory Financial Information and Dividend Limitations (Tables) | 12 Months Ended
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Dec. 31, 2017
Statutory Financial Information and Dividend Limitations [Abstract] |
Statutory net income and capital and surplus |
Statutory net income (loss) and capital and surplus of Allstate’s domestic insurance subsidiaries
|  | Net income (loss) |  | Capital and surplus
($ in millions) |  | 2017 |  | 2016 |  | 2015 |  | 2017 |  | 2016
Amounts by major business type: |  |  |  |  |  |  |  |  |  |
Property and casualty insurance |  | $ | 3,050 |  |  | $ | 1,520 |  |  | $ | 1,826 |  |  | $ | 14,903 |  |  | $ | 13,436 |
Life insurance, annuities and voluntary accident and health insurance |  | 327 |  |  | 197 |  |  | (56 | ) |  | 3,727 |  |  | 3,383 |
Amount per statutory accounting practices |  | $ | 3,377 |  |  | $ | 1,717 |  |  | $ | 1,770 |  |  | $ | 18,630 |  |  | $ | 16,819 |

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- Definition Schedule of statutory net income and capital and surplus, determined in accordance with statutory accounting practices prescribed or permitted by insurance regulatory authorities. + References No definition available. + Details
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- Definition Statutory Financial Information and Dividend Limitations [Abstract] + References No definition available. + Details
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