v3.5.0.2
Condensed Consolidating Financial Statements Condensed Consolidating Statements of Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Condensed Income Statements, Captions [Line Items]          
Clearing Fees Revenue $ 860 $ 747 $ 1,789 $ 1,583  
Market Data Revenue 497 205 974 405  
Revenues:          
Listing Fees and Other Revenues 147 144 295 288  
Total revenues 1,504 1,096 3,058 2,276  
Transaction-based expenses 375 299 775 629  
Total revenues, less transaction-based expenses 1,129 797 2,283 1,647  
Operating expenses:          
Compensation and benefits 236 144 472 295  
Technology and communication 92 47 184 98  
Professional services     69 65  
Rent and occupancy     35 31  
Acquisition-related transaction costs 20 7 47 26  
Selling, general and administrative 84 76 156 154  
Depreciation and amortization 146 93 289 182  
Total operating expenses 578 367 1,148 755  
Operating income 551 430 1,135 892  
Interest expense, intercompany 0 0 0 0  
Other Operating Income (Expense), Net (35) (32) (79) (53)  
Total other expense, net (35) (32) (79) (53)  
Income from continuing operations before income taxes 516 398 1,056 839  
Income tax expense (benefit) 153 109 316 227  
Equity earnings from subsidiaries 0 0 0 0  
Net income (loss) 363 289 740 612 $ 1,295
Net income attributable to non-controlling interest (6) (6) (14) (14)  
Net income (loss) attributable to ICE Group, Inc. 357 283 726 598  
Guarantor Subsidiaries [Member]          
Condensed Income Statements, Captions [Line Items]          
Clearing Fees Revenue 0 0 0 0  
Market Data Revenue 0 0 0 0  
Revenues:          
Listing Fees and Other Revenues 0 0 0 0  
Total revenues 0 0 0 0  
Transaction-based expenses 0 0 0 0  
Total revenues, less transaction-based expenses 0 0 0 0  
Operating expenses:          
Compensation and benefits 0 0 0 0  
Technology and communication 0 0 0 0  
Acquisition-related transaction costs 0 0 0 0  
Selling, general and administrative 0 0 0 0  
Depreciation and amortization 0 0 0 0  
Total operating expenses 0 0 0 0  
Operating income 0 0 0 0  
Interest expense, intercompany 8 9 16 19  
Other Operating Income (Expense), Net (4) 7 (8) (33)  
Total other expense, net 4 16 8 (14)  
Income from continuing operations before income taxes 4 16 8 (14)  
Income tax expense (benefit) 0 0 0 0  
Equity earnings from subsidiaries 324 71 611 168  
Net income (loss) 328 87 619 154  
Net income attributable to non-controlling interest 0 0 0 0  
Net income (loss) attributable to ICE Group, Inc. 328 87 619 154  
Parent Company [Member]          
Condensed Income Statements, Captions [Line Items]          
Clearing Fees Revenue 0 0 0 0  
Market Data Revenue 0 0 0 0  
Revenues:          
Listing Fees and Other Revenues 0 0 0 0  
Total revenues 0 0 0 0  
Transaction-based expenses 0 0 0 0  
Total revenues, less transaction-based expenses 0 0 0 0  
Operating expenses:          
Compensation and benefits 1 1 1 1  
Technology and communication 0 0 0 0  
Acquisition-related transaction costs 0 0 0 0  
Selling, general and administrative 0 0 0 1  
Depreciation and amortization 0 0 0 0  
Total operating expenses 1 1 1 2  
Operating income (1) (1) (1) (2)  
Interest expense, intercompany (6) (1) (10) (2)  
Other Operating Income (Expense), Net (38) (26) (79) (7)  
Total other expense, net (44) (27) (89) (9)  
Income from continuing operations before income taxes (45) (28) (90) (11)  
Income tax expense (benefit) 0 (10) 0 (3)  
Equity earnings from subsidiaries 402 301 816 606  
Net income (loss) 357 283 726 598  
Net income attributable to non-controlling interest 0 0 0 0  
Net income (loss) attributable to ICE Group, Inc. 357 283 726 598  
Non-Guarantor Subsidiaries [Member]          
Condensed Income Statements, Captions [Line Items]          
Clearing Fees Revenue 860 747 1,789 1,583  
Market Data Revenue 497 205 974 405  
Revenues:          
Listing Fees and Other Revenues 147 144 295 288  
Total revenues 1,504 1,096 3,058 2,276  
Transaction-based expenses 375 299 775 629  
Total revenues, less transaction-based expenses 1,129 797 2,283 1,647  
Operating expenses:          
Compensation and benefits 235 143 471 294  
Technology and communication 92 47 184 98  
Acquisition-related transaction costs 20 7 47 26  
Selling, general and administrative 84 76 156 153  
Depreciation and amortization 146 93 289 182  
Total operating expenses 577 366 1,147 753  
Operating income 552 431 1,136 894  
Interest expense, intercompany (2) (8) (6) (17)  
Other Operating Income (Expense), Net 7 (13) 8 (13)  
Total other expense, net 5 (21) 2 (30)  
Income from continuing operations before income taxes 557 410 1,138 864  
Income tax expense (benefit) 153 119 316 230  
Equity earnings from subsidiaries 0 0 0 0  
Net income (loss) 404 291 822 634  
Net income attributable to non-controlling interest (6) (6) (14) (14)  
Net income (loss) attributable to ICE Group, Inc. 398 285 808 620  
Consolidation, Eliminations [Member]          
Condensed Income Statements, Captions [Line Items]          
Clearing Fees Revenue 0 0 0 0  
Market Data Revenue 0 0 0 0  
Revenues:          
Listing Fees and Other Revenues 0 0 0 0  
Total revenues 0 0 0 0  
Transaction-based expenses 0 0 0 0  
Total revenues, less transaction-based expenses 0 0 0 0  
Operating expenses:          
Compensation and benefits 0 0 0 0  
Technology and communication 0 0 0 0  
Acquisition-related transaction costs 0 0 0 0  
Selling, general and administrative 0 0 0 0  
Depreciation and amortization 0 0 0 0  
Total operating expenses 0 0 0 0  
Operating income 0 0 0 0  
Interest expense, intercompany 0 0 0 0  
Other Operating Income (Expense), Net 0 0 0 0  
Total other expense, net 0 0 0 0  
Income from continuing operations before income taxes 0 0 0 0  
Income tax expense (benefit) 0 0 0 0  
Equity earnings from subsidiaries (726) (372) (1,427) (774)  
Net income (loss) (726) (372) (1,427) (774)  
Net income attributable to non-controlling interest 0 0 0 0  
Net income (loss) attributable to ICE Group, Inc. $ (726) $ (372) $ (1,427) $ (774)