XML 21 R28.htm IDEA: XBRL DOCUMENT v2.4.1.9
Commitments and Contingencies (Details) (USD $)
In Billions, unless otherwise specified
 1 Months Ended 3 Months Ended 1 Months Ended
Oct. 31, 2003
entity
competitor
pharmacy
Mar. 31, 2015
store_lease
Mar. 31, 2010
state
Oct. 12, 2012
pharmacies
Loss contingencies        
Number of store leases guaranteed   72cvs_GuaranteedStoreLeases    
Year the Last Lease Expires   2026    
Number of pharmacies filing putative action 2cvs_NumberOfPharmaciesFilingPutativeAction      
Number of competitors against whom putative actions are filed 2cvs_NumberOfCompetitorsAgainstWhomPutativeActionsAreFiled      
Number of Caremark entities named as defendants 2us-gaap_LossContingencyNumberOfDefendants      
Number of stores Drug Enforcement Agency revoked licenses in October 2012       2cvs_NumberofstoresDrugEnforcementAgencyrevokedlicensesinOctober2012
Lauriello Lawsuit        
Loss contingencies        
Lauriello lawsuit, amount sought in compensatory damages plus other non-specified damages   3.2cvs_CompensatoryDamagesSoughtInLawsuits
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= cvs_LaurielloLawsuitMember		    
Multi-state investigation under FTC        
Loss contingencies        
Number of states participating in multi-state investigation     28cvs_NumberOfStatesParticipatingInMultistateInvestigations
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= cvs_MultiStateInvestigationMember