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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |
Earnings before income taxes (“EBT”) | $ 156 | $ 30
Income taxes at statutory rate | 55 | 10
Effect of tax exempt interest | (7) | (7)
Effect of change in valuation allowance | 1 | (1)
Effect of subsidiaries not in AFG's tax return | 1 | 1
Effect of other income tax reconciliation | 2 | 2
Provision for income taxes as shown on the Statement of Earnings | $ 52 | $ 5
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |
Income taxes at statutory rate as a percentage of EBT | 35.00% | 35.00%
Effect of tax exempt interest as a percentage of EBT | (4.00%) | (23.00%)
Effect of change in valuation allowance as a percentage of EBT | 1.00% | (3.00%)
Effect of subsidiaries not in AFG's tax return as a percentage of EBT | 0.00% | 3.00%
Effect of other income tax reconciliation as a percentage of EBT | 1.00% | 5.00%
Provision for income taxes as shown on the Statement of Earnings as a percentage of EBT | 33.00% | 17.00%

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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to tax on the equity in earnings (losses) of less than 80%-owned subsidiaries not included in AFG's consolidated tax return. + References No definition available. + Details
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