v2.4.1.9

Segment Information (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 segments | Dec. 31, 2013 | Dec. 31, 2012
Number of reportable segments |  |  |  |  |  |  |  |  | 2 us-gaap_NumberOfReportableSegments |  |
Premium and service revenues from external or internal customers | $ 4,725 us-gaap_Revenues | $ 4,352 us-gaap_Revenues | $ 4,023 us-gaap_Revenues | $ 3,460 us-gaap_Revenues | $ 2,932 us-gaap_Revenues | $ 2,795 us-gaap_Revenues | $ 2,611 us-gaap_Revenues | $ 2,525 us-gaap_Revenues | $ 16,560 us-gaap_Revenues | $ 10,863 us-gaap_Revenues | $ 8,110 us-gaap_Revenues
Premium and service revenues |  |  |  |  |  |  |  |  | 15,667 cnc_PremiumAndServiceRevenues | 10,526 cnc_PremiumAndServiceRevenues | 7,682 cnc_PremiumAndServiceRevenues
Earnings (loss) from operations |  |  |  |  |  |  |  |  | 464 us-gaap_OperatingIncomeLoss | 277 us-gaap_OperatingIncomeLoss | 108 us-gaap_OperatingIncomeLoss
Total assets | 5,838 us-gaap_Assets |  |  |  | 3,529 us-gaap_Assets |  |  |  | 5,838 us-gaap_Assets | 3,529 us-gaap_Assets |
External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 15,667 us-gaap_Revenues / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember | 10,526 us-gaap_Revenues / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember | 7,682 us-gaap_Revenues / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember
Internal Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember | 0 us-gaap_Revenues / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember
Operating Segments [Member] | Medicaid Managed Care [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues |  |  |  |  |  |  |  |  | 13,946 cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 9,782 cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 7,212 cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember
Earnings (loss) from operations |  |  |  |  |  |  |  |  | 353 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 198 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 63 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember
Total assets | 4,620 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember |  |  |  | 2,817 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember |  |  |  | 4,620 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 2,817 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 2,164 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember
Operating Segments [Member] | Specialty Services [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues |  |  |  |  |  |  |  |  | 4,800 cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 2,932 cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 2,107 cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember
Earnings (loss) from operations |  |  |  |  |  |  |  |  | 111 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 79 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 45 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember
Total assets | 1,118 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember |  |  |  | 596 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember |  |  |  | 1,118 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 596 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 371 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember
Operating Segments [Member] | External Customer [Member] | Medicaid Managed Care [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 13,886 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 9,741 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 7,125 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember
Operating Segments [Member] | External Customer [Member] | Specialty Services [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 1,781 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 785 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 557 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember
Operating Segments [Member] | Internal Customer [Member] | Medicaid Managed Care [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 60 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 41 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember | 87 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_ManagedCareMember
Operating Segments [Member] | Internal Customer [Member] | Specialty Services [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 3,019 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 2,147 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember | 1,550 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember / us-gaap_StatementBusinessSegmentsAxis = cnc_SpecialtyServicesMember
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues |  |  |  |  |  |  |  |  | (3,079)cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | (2,188)cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | (1,637)cnc_PremiumAndServiceRevenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember
Earnings (loss) from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | 0 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | 0 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember
Total assets | 0 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember |  |  |  | 0 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember |  |  |  | 0 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | 0 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | 0 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember
Intersegment Eliminations [Member] | External Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember | 0 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember | 0 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember / us-gaap_MajorCustomersAxis = cnc_ExternalCustomerMember
Intersegment Eliminations [Member] | Internal Customer [Member] |  |  |  |  |  |  |  |  |  |  |
Premium and service revenues from external or internal customers |  |  |  |  |  |  |  |  | (3,079)us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember | (2,188)us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember | (1,637)us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember / us-gaap_MajorCustomersAxis = cnc_InternalCustomerMember
Continuing Operations [Member] |  |  |  |  |  |  |  |  |  |  |
Total assets | $ 5,738 us-gaap_Assets / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember |  |  |  | $ 3,413 us-gaap_Assets / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember |  |  |  | $ 5,738 us-gaap_Assets / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | $ 3,413 us-gaap_Assets / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember | $ 2,535 us-gaap_Assets / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember

X
- Definition Premiums earned on the income statement for all insurance and reinsurance contracts after subtracting any amounts ceded to another insurer and adding premiums assumed from other insurers, plus aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. Premium and service revenues exclude Premium Tax Revenue. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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