XML 113 R3.htm IDEA: XBRL DOCUMENT v2.4.1.9
Consolidated Balance Sheets (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Statement of Financial Position [Abstract]    
Available-for-sale Securities, Amortized Cost Basis $ 9,972us-gaap_AvailableForSaleSecuritiesAmortizedCost $ 9,488us-gaap_AvailableForSaleSecuritiesAmortizedCost
Common stock par value (per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 500,000,000us-gaap_CommonStockSharesAuthorized 500,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 158,306,661us-gaap_CommonStockSharesIssued 182,177,866us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 158,306,661us-gaap_CommonStockSharesOutstanding 182,177,866us-gaap_CommonStockSharesOutstanding
Accumulated other comprehensive income, tax provision $ 159us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome $ 71us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome
Deferred equity compensation, shares 320,193ago_DeferredCompensationEquityShare 320,193ago_DeferredCompensationEquityShare