Consolidated Statements of Comprehensive Income Consolidated Statements of Comprehensive Income - 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
Statement of Comprehensive Income [Abstract]
Net income	$ 363	$ 289	$ 740	$ 612	$ 1,295
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax (expense) benefit of $1 and $3 for the six months ended June 30, 2016 and 2015, respectively, and ($1) and ($1) for the three months ended June 30, 2016 and 2015, respectively	(125)	56	(199)	19
Change in fair value of available-for-sale securities	75	31	129	(39)
Comprehensive income	313	374	670	590
Comprehensive income attributable to non-controlling interest	(6)	(6)	(14)	(14)
Comprehensive income attributable to IntercontinentalExchange Group, Inc.	$ 307	$ 368	$ 656	$ 576