XML 71 R56.htm IDEA: XBRL DOCUMENT
v3.26.1

LIABILITIES FOR INSURANCE PRODUCTS - SUMMARY OF CHANGES IN LIABILITY FOR FUTURE POLICY BENEFITS (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025 | Dec. 31, 2024
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Present value of expected net premiums ("PVENP"), beginning of period | $ 9,717.6 | $ 9,112.5 |  |
Effect of changes in discount rate assumptions, beginning of period | 257.2 | 514.4 |  |
Beginning PVENP at original discount rate | 9,974.8 | 9,626.9 |  |
Effect of actual variances from expected experience |  |  | $ (18.3) | $ (36.3)
Adjusted beginning of period PVENP |  |  | 9,956.5 | 9,590.6
Issuances | 476.3 | 402.1 |  |
Interest accrual | 110.0 | 103.1 |  |
Net premiums collected | (359.5) | (348.9) |  |
Ending PVENP at original discount rate | 10,183.3 | 9,746.9 |  |
Effect of changes in discount rate assumptions, end of period | (378.4) | (412.5) |  |
PVENP, end of period | 9,804.9 | 9,334.4 |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Present value of expected future policy benefits ("PVEFPB"), beginning of period | 19,195.2 | 18,279.0 |  |
Effect of changes in discount rate assumptions, beginning of period | 700.9 | 1,171.7 |  |
Beginning PVEFPB at original discount rate | 19,896.1 | 19,450.7 |  |
Effect of actual variances from expected experience |  |  | (24.9) | (48.8)
Adjusted beginning of period PVEFPB |  |  | 19,871.2 | 19,401.9
Issuances | 476.3 | 405.3 |  |
Interest accrual | 231.9 | 223.9 |  |
Benefit payments | (433.8) | (430.2) |  |
Ending PVEFPB at original discount rate | 20,145.6 | 19,600.9 |  |
Effect of changes in discount rate assumptions, end of period | (1,005.0) | (997.2) |  |
PVEFPB, end of period | 19,140.6 | 18,603.7 |  |
Net liability for future policy benefits | 9,335.7 | 9,269.3 |  |
Flooring impact | 1.2 | 0.7 |  |
Adjusted net liability for future policy benefits | 9,336.9 | 9,270.0 |  |
Related reinsurance recoverable | (532.6) | (535.7) |  |
Net liability for future policy benefits, net of reinsurance recoverable | 8,804.3 | 8,734.3 |  |
Adjusted net liability for future policy benefits | 9,336.9 | 9,270.0 |  |
Reserves excluded from rollforward | 2,287.9 | 2,406.7 |  |
Deferred liability | 72.5 | 68.7 |  |
Future loss reserves | 24.9 | 27.6 |  |
Future policy benefits | 11,722.2 | 11,773.0 | 11,898.0 |
Supplemental health |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Present value of expected net premiums ("PVENP"), beginning of period | 2,645.7 | 2,643.9 |  |
Effect of changes in discount rate assumptions, beginning of period | 107.6 | 180.0 |  |
Beginning PVENP at original discount rate | 2,753.3 | 2,823.9 |  |
Effect of actual variances from expected experience |  |  | 5.4 | (19.4)
Adjusted beginning of period PVENP |  |  | 2,758.7 | 2,804.5
Issuances | 63.8 | 108.3 |  |
Interest accrual | 30.5 | 30.9 |  |
Net premiums collected | (87.5) | (90.0) |  |
Ending PVENP at original discount rate | 2,765.5 | 2,853.7 |  |
Effect of changes in discount rate assumptions, end of period | (144.3) | (154.3) |  |
PVENP, end of period | 2,621.2 | 2,699.4 |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Present value of expected future policy benefits ("PVEFPB"), beginning of period | 5,984.2 | 5,828.2 |  |
Effect of changes in discount rate assumptions, beginning of period | 359.2 | 516.6 |  |
Beginning PVEFPB at original discount rate | 6,343.4 | 6,344.8 |  |
Effect of actual variances from expected experience |  |  | 6.2 | (22.6)
Adjusted beginning of period PVEFPB |  |  | 6,349.6 | 6,322.2
Issuances | 63.8 | 111.2 |  |
Interest accrual | 73.4 | 73.2 |  |
Benefit payments | (102.9) | (104.1) |  |
Ending PVEFPB at original discount rate | 6,383.9 | 6,402.5 |  |
Effect of changes in discount rate assumptions, end of period | (462.3) | (465.5) |  |
PVEFPB, end of period | 5,921.6 | 5,937.0 |  |
Net liability for future policy benefits | 3,300.4 | 3,237.6 |  |
Flooring impact | 0.0 | 0.0 |  |
Adjusted net liability for future policy benefits | 3,300.4 | 3,237.6 |  |
Related reinsurance recoverable | (1.7) | (1.2) |  |
Net liability for future policy benefits, net of reinsurance recoverable | 3,298.7 | 3,236.4 |  |
Adjusted net liability for future policy benefits | 3,300.4 | 3,237.6 |  |
Medicare supplement |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Present value of expected net premiums ("PVENP"), beginning of period | 3,661.6 | 3,161.9 |  |
Effect of changes in discount rate assumptions, beginning of period | 111.5 | 195.2 |  |
Beginning PVENP at original discount rate | 3,773.1 | 3,357.1 |  |
Effect of actual variances from expected experience |  |  | 19.9 | 33.3
Adjusted beginning of period PVENP |  |  | 3,793.0 | 3,390.4
Issuances | 275.0 | 157.3 |  |
Interest accrual | 41.6 | 35.4 |  |
Net premiums collected | (129.4) | (116.8) |  |
Ending PVENP at original discount rate | 3,980.2 | 3,466.3 |  |
Effect of changes in discount rate assumptions, end of period | (157.4) | (157.9) |  |
PVENP, end of period | 3,822.8 | 3,308.4 |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Present value of expected future policy benefits ("PVEFPB"), beginning of period | 3,864.0 | 3,375.6 |  |
Effect of changes in discount rate assumptions, beginning of period | 120.6 | 211.5 |  |
Beginning PVEFPB at original discount rate | 3,984.6 | 3,587.1 |  |
Effect of actual variances from expected experience |  |  | 23.3 | 34.7
Adjusted beginning of period PVEFPB |  |  | 4,007.9 | 3,621.8
Issuances | 275.0 | 157.4 |  |
Interest accrual | 44.0 | 37.9 |  |
Benefit payments | (132.8) | (123.4) |  |
Ending PVEFPB at original discount rate | 4,194.1 | 3,693.7 |  |
Effect of changes in discount rate assumptions, end of period | (168.4) | (171.3) |  |
PVEFPB, end of period | 4,025.7 | 3,522.4 |  |
Net liability for future policy benefits | 202.9 | 214.0 |  |
Flooring impact | 1.2 | 0.7 |  |
Adjusted net liability for future policy benefits | 204.1 | 214.7 |  |
Related reinsurance recoverable | 0.0 | 0.0 |  |
Net liability for future policy benefits, net of reinsurance recoverable | 204.1 | 214.7 |  |
Adjusted net liability for future policy benefits | 204.1 | 214.7 |  |
Long-term care |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Present value of expected net premiums ("PVENP"), beginning of period | 1,196.6 | 1,102.8 |  |
Effect of changes in discount rate assumptions, beginning of period | (4.8) | 25.7 |  |
Beginning PVENP at original discount rate | 1,191.8 | 1,128.5 |  |
Effect of actual variances from expected experience |  |  | (17.4) | (17.8)
Adjusted beginning of period PVENP |  |  | 1,174.4 | 1,110.7
Issuances | 45.3 | 43.1 |  |
Interest accrual | 14.0 | 13.2 |  |
Net premiums collected | (42.3) | (40.6) |  |
Ending PVENP at original discount rate | 1,191.4 | 1,126.4 |  |
Effect of changes in discount rate assumptions, end of period | (10.4) | (13.9) |  |
PVENP, end of period | 1,181.0 | 1,112.5 |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Present value of expected future policy benefits ("PVEFPB"), beginning of period | 4,409.2 | 4,240.1 |  |
Effect of changes in discount rate assumptions, beginning of period | 10.5 | 94.1 |  |
Beginning PVEFPB at original discount rate | 4,419.7 | 4,334.2 |  |
Effect of actual variances from expected experience |  |  | (24.7) | (20.8)
Adjusted beginning of period PVEFPB |  |  | 4,395.0 | 4,313.4
Issuances | 45.3 | 43.1 |  |
Interest accrual | 57.8 | 57.0 |  |
Benefit payments | (72.4) | (73.0) |  |
Ending PVEFPB at original discount rate | 4,425.7 | 4,340.5 |  |
Effect of changes in discount rate assumptions, end of period | (92.6) | (60.9) |  |
PVEFPB, end of period | 4,333.1 | 4,279.6 |  |
Net liability for future policy benefits | 3,152.1 | 3,167.1 |  |
Flooring impact | 0.0 | 0.0 |  |
Adjusted net liability for future policy benefits | 3,152.1 | 3,167.1 |  |
Related reinsurance recoverable | (378.7) | (368.1) |  |
Net liability for future policy benefits, net of reinsurance recoverable | 2,773.4 | 2,799.0 |  |
Adjusted net liability for future policy benefits | 3,152.1 | 3,167.1 |  |
Traditional life |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Present value of expected net premiums ("PVENP"), beginning of period | 2,213.7 | 2,203.9 |  |
Effect of changes in discount rate assumptions, beginning of period | 42.9 | 113.5 |  |
Beginning PVENP at original discount rate | 2,256.6 | 2,317.4 |  |
Effect of actual variances from expected experience |  |  | (26.2) | (32.4)
Adjusted beginning of period PVENP |  |  | 2,230.4 | 2,285.0
Issuances | 90.3 | 91.8 |  |
Interest accrual | 23.9 | 23.6 |  |
Net premiums collected | (98.4) | (99.9) |  |
Ending PVENP at original discount rate | 2,246.2 | 2,300.5 |  |
Effect of changes in discount rate assumptions, end of period | (66.3) | (86.4) |  |
PVENP, end of period | 2,179.9 | 2,214.1 |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Present value of expected future policy benefits ("PVEFPB"), beginning of period | 4,677.8 | 4,570.6 |  |
Effect of changes in discount rate assumptions, beginning of period | 199.5 | 333.3 |  |
Beginning PVEFPB at original discount rate | 4,877.3 | 4,903.9 |  |
Effect of actual variances from expected experience |  |  | (30.7) | (40.7)
Adjusted beginning of period PVEFPB |  |  | 4,846.6 | 4,863.2
Issuances | 90.3 | 92.0 |  |
Interest accrual | 53.5 | 52.6 |  |
Benefit payments | (118.7) | (122.5) |  |
Ending PVEFPB at original discount rate | 4,871.7 | 4,885.3 |  |
Effect of changes in discount rate assumptions, end of period | (266.0) | (283.0) |  |
PVEFPB, end of period | 4,605.7 | 4,602.3 |  |
Net liability for future policy benefits | 2,425.8 | 2,388.2 |  |
Flooring impact | 0.0 | 0.0 |  |
Adjusted net liability for future policy benefits | 2,425.8 | 2,388.2 |  |
Related reinsurance recoverable | (152.2) | (166.4) |  |
Net liability for future policy benefits, net of reinsurance recoverable | 2,273.6 | 2,221.8 |  |
Adjusted net liability for future policy benefits | 2,425.8 | 2,388.2 |  |
Other annuities |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Present value of expected net premiums ("PVENP"), beginning of period | 0.0 | 0.0 |  |
Effect of changes in discount rate assumptions, beginning of period | 0.0 | 0.0 |  |
Beginning PVENP at original discount rate | 0.0 | 0.0 |  |
Effect of actual variances from expected experience |  |  | 0.0 | 0.0
Adjusted beginning of period PVENP |  |  | 0.0 | 0.0
Issuances | 1.9 | 1.6 |  |
Interest accrual | 0.0 | 0.0 |  |
Net premiums collected | (1.9) | (1.6) |  |
Ending PVENP at original discount rate | 0.0 | 0.0 |  |
Effect of changes in discount rate assumptions, end of period | 0.0 | 0.0 |  |
PVENP, end of period | 0.0 | 0.0 |  |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Present value of expected future policy benefits ("PVEFPB"), beginning of period | 260.0 | 264.5 |  |
Effect of changes in discount rate assumptions, beginning of period | 11.1 | 16.2 |  |
Beginning PVEFPB at original discount rate | 271.1 | 280.7 |  |
Effect of actual variances from expected experience |  |  | 1.0 | 0.6
Adjusted beginning of period PVEFPB |  |  | $ 272.1 | $ 281.3
Issuances | 1.9 | 1.6 |  |
Interest accrual | 3.2 | 3.2 |  |
Benefit payments | (7.0) | (7.2) |  |
Ending PVEFPB at original discount rate | 270.2 | 278.9 |  |
Effect of changes in discount rate assumptions, end of period | (15.7) | (16.5) |  |
PVEFPB, end of period | 254.5 | 262.4 |  |
Net liability for future policy benefits | 254.5 | 262.4 |  |
Flooring impact | 0.0 | 0.0 |  |
Adjusted net liability for future policy benefits | 254.5 | 262.4 |  |
Related reinsurance recoverable | 0.0 | 0.0 |  |
Net liability for future policy benefits, net of reinsurance recoverable | 254.5 | 262.4 |  |
Adjusted net liability for future policy benefits | $ 254.5 | $ 262.4 |  |

X
- Definition Liability for Future Policy Benefit, Before Reinsurance Reserve + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitBeforeReinsuranceReserve
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability for Future Policy Benefit, Deferred Profit Liability + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitDeferredProfitLiability
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, and Discount Rate Change + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAndDiscountRateChange
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance and Discount Rate Change + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAndDiscountRateChange
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Liability for Future Policy Benefit, Flooring Impact + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitFlooringImpact
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability for Future Policy Benefits, Adjusted, Net + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitsAdjustedNet
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liability For Future Policy Benefits Payment For Benefits, Reserve + References No definition available. + Details
Name: | cno_LiabilityForFuturePolicyBenefitsPaymentForBenefitsReserve
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Policyholder Account Balance, Liability For Future Policy Benefits And Unpaid Claims And Claims Adjustment Expense + References No definition available. + Details
Name: | cno_PolicyholderAccountBalanceLiabilityForFuturePolicyBenefitsAndUnpaidClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | cno_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of accumulated other comprehensive income (loss) (AOCI) from (increase) decrease in expected future policy benefit component of liability for future policy benefit from change in discount rate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_AociLiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of accumulated other comprehensive income (loss) (AOCI) from increase (decrease) in expected net premium component of liability for future policy benefit from change in discount rate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_AociLiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after effect of reinsurance, of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitAfterReinsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before effect of reinsurance and after current period update of cash flow assumption, of expected future benefit and expense component for liability for future policy benefit, discounted at original rate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFutureBenefitOriginalDiscountRateBeforeReinsuranceAfterCashFlowChange
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before effect of reinsurance and after current period update of cash flow assumption and discount rate change, of expected future policy benefit and expense component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cumulative increase (decrease) in expected future policy benefit and expense component for liability of future policy benefit from effect of variance from cash flow assumption change for actual experience. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of interest expense for expected future policy benefit and expense component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitInterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in expected future policy benefit and expense component of liability for future policy benefit from contract issuance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, before effect of reinsurance and current period update of cash flow assumption, of expected future policy benefit and expense component of liability for future policy benefit, discounted at original rate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitOriginalDiscountRateBeforeCashFlowAndReinsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before effect of reinsurance and after current period update of cash flow assumption and discount rate change, of expected net premium component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cumulative increase (decrease) in expected net premium component for liability of future policy benefit from effect of variance from cash flow assumption change for actual experience. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of interest income for expected net premium component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumInterestIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase in expected net premium component of liability for future policy benefit from contract issuance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of premium collected from policyholder to fund expected benefit payment for expected net premium component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumNetPremiumCollected
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, before effect of reinsurance and current period update of cash flow assumption, of expected net premium component of liability for future policy benefit, discounted at original rate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeCashFlowAndReinsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before effect of reinsurance and after current period update of cash flow assumption, of expected net premium component for liability for future policy benefit, discounted at original rate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeReinsuranceAfterCashFlowChange
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitExpectedNetPremiumRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after allowance for credit loss, recoverable under reinsurance of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitReinsuranceRecoverableAfterAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 605 -Name Accounting Standards Codification -Section 55 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477548/944-605-55-14 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(13)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash outflow to policyholder from benefit payment for expected future policy benefit and expense component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13I -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-13I Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-17 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitsPaymentForBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=cno_SupplementalHealthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cno_MedicareSupplementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cno_LongTermCareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cno_TraditionalLifeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cno_OtherAnnuitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |