Rendering

Component: (Network and Table)
Network
2412410 - Disclosure - Employee Benefit Plans (Anticipated Benefit Payments from the Plan in Future Years) (Details)
(http://www.cmegroup.com/role/EmployeeBenefitPlansAnticipatedBenefitPaymentsFromPlanInFutureYearsDetails)
TableStatement [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001156375 (http://www.sec.gov/CIK)
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Pension Plans [Member]
Statement [Line Items]Period [Axis]
2016-12-31
2017
12,500,000  
2018
14,000,000  
2019
15,100,000  
2020
16,000,000  
2021
17,600,000  
2022-2026
109,000,000