XML 93 R74.htm IDEA: XBRL DOCUMENT
v3.25.4

Medical Claims Liability - Schedule of Incurred Claims and Allocated Claims Adjustment Expenses (Details) - Health insurance product line claim in Millions, $ in Millions | Dec. 31, 2025 USD ($) claim | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | --- | ---
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 404,815 |  |
Medicaid | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | 241,851 |  |
Medicare | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | 74,497 |  |
Commercial | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | 83,149 |  |
Other | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | 5,318 |  |
2023 |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | 118,324 | $ 118,709 | $ 120,680
Total IBNR Plus Expected Development on Reported Claims | $ 4 |  |
Cumulative Paid Claims | claim | 624.1 |  |
2023 | Medicaid | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 78,282 | 78,517 | 79,747
Total IBNR Plus Expected Development on Reported Claims | $ 4 |  |
Cumulative Paid Claims | claim | 346.0 |  |
2023 | Medicare | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 18,830 | 19,008 | 19,487
Total IBNR Plus Expected Development on Reported Claims | $ 0 |  |
Cumulative Paid Claims | claim | 200.7 |  |
2023 | Commercial | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 19,725 | 19,698 | 19,966
Total IBNR Plus Expected Development on Reported Claims | $ 0 |  |
Cumulative Paid Claims | claim | 72.9 |  |
2023 | Other | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 1,487 | 1,486 | $ 1,480
Total IBNR Plus Expected Development on Reported Claims | $ 0 |  |
Cumulative Paid Claims | claim | 4.5 |  |
2024 |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 126,382 | 128,312 |
Total IBNR Plus Expected Development on Reported Claims | $ 347 |  |
Cumulative Paid Claims | claim | 665.0 |  |
2024 | Medicaid | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 77,872 | 78,885 |
Total IBNR Plus Expected Development on Reported Claims | $ 155 |  |
Cumulative Paid Claims | claim | 317.9 |  |
2024 | Medicare | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 20,798 | 21,171 |
Total IBNR Plus Expected Development on Reported Claims | $ 82 |  |
Cumulative Paid Claims | claim | 255.1 |  |
2024 | Commercial | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 26,027 | 26,548 |
Total IBNR Plus Expected Development on Reported Claims | $ 107 |  |
Cumulative Paid Claims | claim | 86.4 |  |
2024 | Other | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 1,685 | $ 1,708 |
Total IBNR Plus Expected Development on Reported Claims | $ 3 |  |
Cumulative Paid Claims | claim | 5.6 |  |
2025 |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 160,109 |  |
Total IBNR Plus Expected Development on Reported Claims | $ 13,125 |  |
Cumulative Paid Claims | claim | 709.9 |  |
2025 | Medicaid | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 85,697 |  |
Total IBNR Plus Expected Development on Reported Claims | $ 7,244 |  |
Cumulative Paid Claims | claim | 308.1 |  |
2025 | Medicare | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 34,869 |  |
Total IBNR Plus Expected Development on Reported Claims | $ 1,567 |  |
Cumulative Paid Claims | claim | 282.8 |  |
2025 | Commercial | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 37,397 |  |
Total IBNR Plus Expected Development on Reported Claims | $ 4,242 |  |
Cumulative Paid Claims | claim | 112.5 |  |
2025 | Other | Operating Segments |  |  |
Claims Development [Line Items] |  |  |
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance | $ 2,146 |  |
Total IBNR Plus Expected Development on Reported Claims | $ 72 |  |
Cumulative Paid Claims | claim | 6.5 |  |

X
- Definition Short-duration Insurance Contracts, Incurred but Not Reported Liabilities and Expected Development on Reported Claims + References No definition available. + Details
Name: | cnc_ShortdurationInsuranceContractsIncurredbutNotReportedandExpectedDevelopmentonReportedClaims
Namespace Prefix: | cnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 9E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-9E Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4E Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4D Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4B Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4B + Details
Name: | us-gaap_ClaimsDevelopmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Undiscounted amount, after reinsurance, of incurred claims and allocated claim adjustment expense used in claims development for short-duration insurance contracts. Excludes unallocated claim adjustment expense. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 9E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-9E Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4B + Details
Name: | us-gaap_ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cumulative number of reported claims for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 9E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-9E Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4D + Details
Name: | us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cnc_MedicaidSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cnc_MedicareSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cnc_CommercialSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |