2101100 - Disclosure - Basis Of Presentation link:presentationLink link:calculationLink link:definitionLink 1001000 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1001501 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1005000 - Statement - Consolidated Statements Of Cash Flows link:presentationLink link:calculationLink link:definitionLink 1003000 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 1002000 - Statement - Consolidated Statements Of Income link:presentationLink link:calculationLink link:definitionLink 1004000 - Statement - Consolidated Statements Of Shareholders' Equity link:presentationLink link:calculationLink link:definitionLink 1004501 - Statement - Consolidated Statements Of Shareholders' Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 2105100 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 2405401 - Disclosure - Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 2103100 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 2403405 - Disclosure - Debt (Fair Value Of Fixed Rate Notes) (Details) link:presentationLink link:calculationLink link:definitionLink 2403402 - Disclosure - Debt (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2403404 - Disclosure - Debt (Schedule Of Maturities Of Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 2403403 - Disclosure - Debt (Schedule Of Short-Term And Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 2303301 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 0001000 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 2109100 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 2409402 - Disclosure - Earnings Per Share (Net Income Attributable To CME Group) (Details) link:presentationLink link:calculationLink link:definitionLink 2309301 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2108100 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Fair Value Measurements Fair Value Measurements Narrative (Detail) (Details) link:presentationLink link:calculationLink link:definitionLink 2408402 - Disclosure - Fair Value Measurements (Financial Instruments Measured At Fair Value On A Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 2408403 - Disclosure - Fair Value Measurements (Reconciliation Using Significant Unobservable Inputs) (Details) link:presentationLink link:calculationLink link:definitionLink 2308301 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 2106100 - Disclosure - Guarantees link:presentationLink link:calculationLink link:definitionLink 2406401 - Disclosure - Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 2104100 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2404401 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2102100 - Disclosure - Intangible Assets And Goodwill link:presentationLink link:calculationLink link:definitionLink 2402403 - Disclosure - Intangible Assets And Goodwill (Components Of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2402405 - Disclosure - Intangible Assets And Goodwill (Future Estimated Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 2402406 - Disclosure - Intangible Assets And Goodwill (Goodwill Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2402402 - Disclosure - Intangible Assets And Goodwill (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2302301 - Disclosure - Intangible Assets And Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 2107100 - Disclosure - Stock-Based Payments link:presentationLink link:calculationLink link:definitionLink 2407401 - Disclosure - Stock-Based Payments (Details) link:presentationLink link:calculationLink link:definitionLink 2110100 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 2410401 - Disclosure - Subsequent Events Subsequent events narrative (Details) link:presentationLink link:calculationLink link:definitionLink