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For the three and six months ended June 30, 2013 and 2012, ineffective amounts were immaterial.3Changes in value are included in Interest credited and other benefits to contract owners/policyholders in the Condensed Consolidated Statements of Operations.falseDerivative Financial Instruments - Net Realized Gains (Losses) (Details) (USD $)HundredThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.ing.us.com/role/DerivativeFinancialInstrumentsNetRealizedGainsLossesDetails429