Fix Maturity Securities That Contain Embedded Derivatives Classified as Trading Securities

No definition available.

Name:	cno_FixMaturitySecuritiesThatContainEmbeddedDerivativesClassifiedasTradingSecurities
Namespace Prefix:	cno_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Gain (Loss) on Reinsurance Transaction

+ References

No definition available.

+ Details

Name:	cno_GainLossonReinsuranceTransaction
Namespace Prefix:	cno_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (a),(c),(d),(e)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

+ Details

Name:	us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959

+ Details

Name:	us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of all derivative liabilities not designated as a hedging instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611

+ Details

Name:	us-gaap_OtherDerivativesNotDesignatedAsHedgingInstrumentsLiabilitiesAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

ACCOUNTING FOR DERIVATIVES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Derivative [Line Items]
Gain (Loss) on Reinsurance Transaction	$ 3.8	$ 0	$ 3.8	$ 0
Fixed maturity securities that contain embedded derivatives classified as trading securities	221.1		221.1		180.6
Assets of CLIC being sold
Derivative [Line Items]
Fixed maturity securities that contain embedded derivatives classified as trading securities	24.3		24.3
Equity swap
Derivative [Line Items]
Estimated fair value	130.7		130.7		156.2
Equity swap \| Investment income
Derivative [Line Items]
Increase (decrease) in earnings due to sale of trading portfolio			36.7	75.9
Equity swap \| Assets of CLIC being sold
Derivative [Line Items]
Estimated fair value	4.3		4.3
Embedded derivative financial instruments
Derivative [Line Items]
Increase (decrease) in earnings due to sale of trading portfolio	7.4	18.5	18.4	20.6
Fair value of derivatives	$ 980.3		$ 980.3		$ 903.7