Rendering

Component: (Network and Table)
Network
2409403 - Disclosure - Debt (Schedule of Short-Term and Long-Term Debt) (Details)
(http://www.cmegroup.com/role/DebtScheduleOfShortTermAndLongTermDebtDetails)
TableStatement [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001156375 (http://www.sec.gov/CIK)
Restricted Cash and Cash Equivalents, Cash and Cash Equivalents [Axis]Cash and Cash Equivalents [Domain]
Statement [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-12-31
Debt Instrument [Axis]Debt Instrument [Axis]
Seven Hundred Fifty Million Fixed Rate Notes Due March Two Thousand Twenty Two, Interest Equal To Four Point Three Zero Percent [Member]Seven Hundred Fifty Million Fixed Rate Notes Due March Two Thousand Twenty Five, Interest Equal To Three Point Zero Percent [Member] [Member]Seven Hundred Fifty Million Fixed Rate Notes Due March Two Thousand Forty Three, Interest Equal To Five Point Three Percent [Member]Debt Instrument, Name [Domain]Seven Hundred Fifty Million Fixed Rate Notes Due March Two Thousand Twenty Two, Interest Equal To Four Point Three Zero Percent [Member]Seven Hundred Fifty Million Fixed Rate Notes Due March Two Thousand Twenty Five, Interest Equal To Three Point Zero Percent [Member] [Member]Seven Hundred Fifty Million Fixed Rate Notes Due March Two Thousand Forty Three, Interest Equal To Five Point Three Percent [Member]Debt Instrument, Name [Domain]
Long-term Debt
 
 
 
 
 
 
 
 
Long-term debt
745,200,000 1
744,200,000 1
741,800,000 1
2,231,200,000  
744,400,000 1
743,400,000 1
741,500,000 1
2,229,300,000  
Forward starting interest rate swap agreement fixed rate
3.32%  
3.11%  
4.73%  
     
Debt instrument, face amount
750,000,000  
750,000,000  
750,000,000  
     
Debt Instrument, maturity date
2022-09-01  
2025-03-01  
2043-09-01  
     
Debt Instrument, Interest Rate, Stated Percentage
3.00%  
3.00%  
5.30%  
     
1: In August 2012, the company entered into a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 3.32%.