Earnings Per Common Share - Schedule of Reconciliation of the Numerators and Denominators of the Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Basic:
Net income attributable to Intercontinental Exchange, Inc.	$ 1,413	$ 797
Weighted average common shares outstanding (in shares)	567	574
Basic earnings per common share (in dollars per share)	$ 2.49	$ 1.39
Diluted:
Weighted average common shares outstanding (in shares)	567	574
Effect of dilutive securities - stock options and restricted stock (in shares)	3	3
Diluted weighted average common shares outstanding (in shares)	570	577
Diluted earnings per common share (in dollars per share)	$ 2.48	$ 1.38