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Network
2411404 - Disclosure - Pension Plans and Other Postretirement Benefits - Change in Plan Assets (Details)
(http://www.cvshealth.com/role/PensionPlansAndOtherPostretirementBenefitsChangeInPlanAssetsDetails)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000064803 (http://www.sec.gov/CIK)
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Pension Plans
Defined Benefit Plan Disclosure [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Defined Benefit Plan, Change in Fair Value of Plan Assets
 
 
 
Fair value of plan assets at the beginning of the year
613,000,000  
635,000,000  
 
Acquisitions
0  
5,000,000  
 
Actual return on plan assets
26,000,000  
(13,000,000) 
 
Employer contributions
25,000,000  
22,000,000  
42,000,000  
Benefit payments
(37,000,000) 
(36,000,000) 
 
Settlements
(3,000,000) 
0  
 
Fair value of plan assets at the end of the year
624,000,000  
 
613,000,000  
 
635,000,000  
 
Funded status
(220,000,000) 
(231,000,000)