XML 131 R85.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements - Changes in Level 3 Financial Assets (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Fixed Maturities And Equity Securities [Member]    
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]    
Beginning Balance $ 1,190us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
$ 1,351us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Gains (losses) included in shareholders' net income:    
GMIB fair value gain/(loss) 0ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisGmibAssetsGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
0ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisGmibAssetsGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Other 15ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisOtherAssetGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
16ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisOtherAssetGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Total gains (losses) included in shareholders' net income 15us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
16us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Gains (losses) included in other comprehensive income 14us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
(19)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Gains (losses) required to adjust future policy benefits for settlement annuities 55ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossRequiredToAdjustFuturePolicyBenefits
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
[1] (50)ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossRequiredToAdjustFuturePolicyBenefits
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
[1]
Purchases, issuances, settlements:    
Purchases 101us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
110us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Sales (202)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
(64)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Settlements (156)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
(121)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Total purchases, sales, settlements (257)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
(75)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Transfers into/(out of) Level 3:    
Transfers into Level 3 165us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
115us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Transfers out of Level 3 (325)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
(148)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Total transfers into/(out of) Level 3 (160)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
(33)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Ending Balance 857us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
1,190us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Total gains (losses) included in income attributable to instruments held at the reporting date 2ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossAttributedToInstrumentsHeldIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
7ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossAttributedToInstrumentsHeldIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= ci_FixedMaturitiesAndEquitySecuritiesMember
Derivative Financial Instruments, Assets [Member] | Guaranteed Minimum Income Benefit [Member]    
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]    
Beginning Balance 751us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
622us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Gains (losses) included in shareholders' net income:    
GMIB fair value gain/(loss) 251ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisGmibAssetsGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
(380)ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisGmibAssetsGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Other (1)ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisOtherAssetGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
17ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisOtherAssetGainLossIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Total gains (losses) included in shareholders' net income 250us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
(363)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Gains (losses) included in other comprehensive income 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Gains (losses) required to adjust future policy benefits for settlement annuities 0ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossRequiredToAdjustFuturePolicyBenefits
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
[1] 0ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossRequiredToAdjustFuturePolicyBenefits
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
[1]
Purchases, issuances, settlements:    
Purchases 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Sales 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Settlements (48)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
492us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Total purchases, sales, settlements (48)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
492us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Transfers into/(out of) Level 3:    
Transfers into Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Transfers out of Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Total transfers into/(out of) Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Ending Balance 953us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
751us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
Total gains (losses) included in income attributable to instruments held at the reporting date $ 250ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossAttributedToInstrumentsHeldIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
$ (363)ci_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossAttributedToInstrumentsHeldIncludedInEarnings
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_DerivativeFinancialInstrumentsAssetsMember
/ us-gaap_NetAmountAtRiskByProductAndGuaranteeGuaranteeTypeAxis
= us-gaap_GuaranteedMinimumIncomeBenefitMember
[1] Amounts do not accrue to shareholders.