XML 94 R84.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes (Details 2)
In Millions, unless otherwise specified
Dec. 31, 2014
U.S. [Member]
Expiring 2017 - 2024 [Member]
USD ($)
Dec. 31, 2014
United Kingdom [Member]
USD ($)
Dec. 31, 2014
United Kingdom [Member]
GBP (£)
Operating Loss Carryforwards [Line Items]      
Operating loss carryforwards $ 144us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= country_US
/ afg_OperatingLossCarryForwardExpirationDatesAxis
= afg_ExpirationDateOneMember		 $ 131us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= country_GB		 [1] £ 85us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= country_GB		 [1]
[1] £85 million