Rendering

Component: (Network and Table)
Network
2413403 - Disclosure - Employee Benefit Plans (Schedule of Net Periodic Benefit Cost) (Details)
(http://www.discovercard.com/role/EmployeeBenefitPlansScheduleOfNetPeriodicBenefitCostDetails)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001393612 (http://www.sec.gov/CIK)
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Pension Plans, Defined Benefit [Member]
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
Service cost, benefits earned during the period
0  
0  
0  
Interest cost on projected benefit obligation
23,000,000  
23,000,000  
22,000,000  
Expected return on plan assets
(25,000,000) 
(24,000,000) 
(23,000,000) 
Net amortization
4,000,000  
5,000,000  
3,000,000  
Net periodic benefit cost
2,000,000  
 
4,000,000  
 
2,000,000