Consolidated Statements of Comprehensive Income Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 323us-gaap_ProfitLoss	$ 274us-gaap_ProfitLoss
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax benefit of $4 for the three months ended March 31, 2015	(37)	45
Change in fair value of available-for-sale securities	(70)	60
Other Comprehensive Income, Derivatives Qualifying as Hedges, Net Investment Hedge, Net of Tax	0	0
Comprehensive income	216	379
Comprehensive income attributable to non-controlling interest	(8)	(13)
Comprehensive income attributable to IntercontinentalExchange Group, Inc.	$ 208us-gaap_ComprehensiveIncomeNetOfTax	$ 366us-gaap_ComprehensiveIncomeNetOfTax

Other Comprehensive Income, Derivatives Qualifying as Hedges, Net Investment Hedge, Net of Tax

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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