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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reconciliation of income taxes at the statutory rate to the provision for income taxes shown in the Statement of Earnings
Earnings before income taxes (“EBT”)	$ 161	$ 175
Income taxes at statutory rate	56	61
Income taxes at statutory rate as a percentage of EBT	35.00%	35.00%
Effect of tax exempt interest	(5)	(5)
Effect of tax exempt interest as a percentage of EBT	(3.00%)	(3.00%)
Effect of losses of managed investment entities	0	4
Effect of losses of managed investment entities as a percentage of EBT	0.00%	2.00%
Effect of subsidiaries not in AFG's tax return	1	1
Effect of subsidiaries not in AFG's tax return as a percentage of EBT	1.00%	0.00%
Effect of other income tax reconciliation	2	1
Effect of other income tax reconciliation as a percentage of EBT	1.00%	1.00%
Provision for income taxes as shown on the Statement of Earnings	$ 54	$ 62
Provision for income taxes as shown on the Statement of Earnings as a percentage of EBT	34.00%	35.00%

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to nondeductible losses of managed investment entities.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the less than 80%-owned subsidiaries not included in AFG's consolidated tax return.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting 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 that is attributable to nondeductible losses of managed investment entities.

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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.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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