XML 45 R77.htm IDEA: XBRL DOCUMENT v2.4.1.9
Variable Interest Entities - Additional Information (Details) (Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member], USD $)
Dec. 31, 2014
Dec. 31, 2013
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]
   
Variable Interest Entity [Line Items]    
Variable interest entity, nonconsolidated total assets $ 600,000,000us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember
$ 800,000,000us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember
Variable interest entities, exposure to loss 9,000,000us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember
 
VIE liabilities $ 0us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember
$ 0us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityNotPrimaryBeneficiaryAggregatedDisclosureMember