Income Taxes - Components of Net Deferred Tax Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Unrealized losses on credit derivative financial instruments, net	$ 224	$ 402
Unearned premium reserves, net	63	63
Loss and LAE reserve	66	134
Tax and loss bonds	39ago_DeferredTaxAssetsTaxAndLossBonds	33ago_DeferredTaxAssetsTaxAndLossBonds
Alternative minimum tax credit	57	90
Foreign tax credit	0	37
FG VIEs	13	29
DAC	35	40
Investment basis difference	104us-gaap_DeferredTaxAssetsInvestments	93us-gaap_DeferredTaxAssetsInvestments
Deferred compensation	38	33
Other	19us-gaap_DeferredTaxAssetsOther	21us-gaap_DeferredTaxAssetsOther
Total deferred income tax assets	658us-gaap_DeferredTaxAssetsGross	975us-gaap_DeferredTaxAssetsGross
Deferred tax liabilities:
Contingency reserves	64	47
Public debt	96	98
Unrealized appreciation on investments	159	68
Unrealized gains on CCS	22	16
Market discount	36	24
Other	21us-gaap_DeferredTaxLiabilitiesOther	34us-gaap_DeferredTaxLiabilitiesOther
Total deferred income tax liabilities	398us-gaap_DeferredIncomeTaxLiabilities	287us-gaap_DeferredIncomeTaxLiabilities
Net deferred income tax asset	$ 260us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 688us-gaap_DeferredTaxAssetsLiabilitiesNet

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to deferred policy acquisition cost which can only be deducted for tax purposes when the appreciation on such assets is realized and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

No definition available.