Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,960	$ 2,020	$ 2,554
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax expense (benefit) of $1, ($1) and ($6) for 2019, 2018 and 2017, respectively, and net impact of $1 from adoption of ASU 2018-02 in 2018	50	(91)	133
Change in fair value of available-for-sale securities	0	0	68
Reclassification of realized gain on available-for-sale investment to other income	0	0	(176)
Change in equity method investment	(1)	0	0
Reclassification of foreign currency translation loss on sale of Trayport to other expense	0	0	76
Employee benefit plan net gains (losses), net of tax expense of $9, $9 and $8 in 2019, 2018 and 2017, respectively, and net impact of $25 from adoption of ASU 2018-02 in 2018	23	(1)	20
Other comprehensive income (loss)	72	(92)	121
Comprehensive income	2,032	1,928	2,675
Comprehensive income attributable to non-controlling interest	(27)	(32)	(28)
Comprehensive income attributable to Intercontinental Exchange, Inc.	$ 2,005	$ 1,896	$ 2,647