Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 375	$ 350	$ 1,311	$ 1,090
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax (expense) benefit of ($11) and $1 for the nine months ended September 30, 2017 and 2016, respectively, and ($4) for the three months ended September 30, 2017	45	(46)	130	(245)
Change in fair value of available-for-sale securities	0	(12)	68	117
Reclassification of realized gain on available-for-sale investment to other income	0	0	(176)	0
Other comprehensive income (loss)	45	(58)	22	(128)
Comprehensive income	420	292	1,333	962
Comprehensive income attributable to non-controlling interest	(6)	(6)	(22)	(20)
Comprehensive income attributable to Intercontinental Exchange, Inc.	$ 414	$ 286	$ 1,311	$ 942