Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Basic:
Net income attributable to Intercontinental Exchange, Inc.	$ 523	$ 472	$ 1,173	$ 956
Weighted average common shares outstanding (in shares)	546,000	563,000	549,000	565,000
Basic earnings per common share (in dollars per share)	$ 0.96	$ 0.84	$ 2.14	$ 1.69
Diluted:
Weighted average common shares outstanding (in shares)	546,000	563,000	549,000	565,000
Effect of dilutive securities - stock options and restricted (in shares) shares	3,000	3,000	3,000	3,000
Diluted weighted average common shares outstanding (in shares)	549,000	566,000	552,000	568,000
Diluted earnings per common share (in dollars per share)	$ 0.95	$ 0.84	$ 2.13	$ 1.68
Employee Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			330	402