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Component: (Network and Table)
Network
2411405 - Disclosure - Pension Plans and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Details)
(http://www.cvshealth.com/role/PensionPlansAndOtherPostretirementBenefitsComponentsOfNetPeriodicBenefitCostDetails)
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
Interest cost
27,000,000  
31,000,000  
32,000,000  
Expected return on plan assets
(32,000,000) 
(33,000,000) 
(31,000,000) 
Amortization of net loss
32,000,000  
21,000,000  
16,000,000  
Settlement loss
0  
0  
3,000,000  
Service cost
0  
0  
1,000,000  
Net periodic pension cost
27,000,000  
 
19,000,000  
 
21,000,000