Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 478	$ 462	$ 970	$ 936
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax benefit of $1 for both the six months and three months ended June 30, 2018	(19)	(75)	7	(42)
Change in equity method investment	0	0	(1)	0
Other comprehensive income (loss)	(19)	(75)	6	(42)
Comprehensive income	459	387	976	894
Comprehensive income attributable to non-controlling interest	(6)	(7)	(14)	(17)
Comprehensive income attributable to Intercontinental Exchange, Inc.	$ 453	$ 380	$ 962	$ 877