Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 474	$ 511
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax expense of $1 for the three months ended March 31, 2018	33	25
Change in fair value of available-for-sale securities	0	68
Reclassification of realized gain on available-for-sale investment to other income	0	(176)
Other comprehensive income (loss)	33	(83)
Comprehensive income	507	428
Comprehensive income attributable to non-controlling interest	(10)	(8)
Comprehensive income attributable to Intercontinental Exchange, Inc.	$ 497	$ 420