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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 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Basic:        
Net income attributable to Intercontinental Exchange, Inc. $ 816 $ 657 $ 2,464 $ 2,056
Weighted average common shares outstanding (in shares) 572 574 573 573
Basic earnings per common share (in dollars per share) $ 1.43 $ 1.15 $ 4.30 $ 3.59
Diluted:        
Weighted average common shares outstanding (in shares) 572 574 573 573
Effect of dilutive securities - stock options and restricted stock (in shares) 2 3 3 3
Diluted weighted average common shares outstanding (in shares) 574 577 576 576
Diluted earnings per common share (in dollars per share) $ 1.42 $ 1.14 $ 4.28 $ 3.57