Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 394	$ 537	$ 1,580	$ 1,507
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax expense of $1 for both the nine and three months ended September 30, 2020 and tax benefit of $1 for both the nine and three months ended September 30, 2019	48	(39)	(30)	(32)
Change in equity method investment	0	0	0	(1)
Other comprehensive income (loss)	48	(39)	(30)	(33)
Comprehensive income	442	498	1,550	1,474
Comprehensive income attributable to non-controlling interest	(4)	(8)	(17)	(22)
Comprehensive income attributable to Intercontinental Exchange, Inc.	$ 438	$ 490	$ 1,533	$ 1,452