v3.26.3
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, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Basic:        
Net income attributable to Intercontinental Exchange, Inc. $ 940 $ 816 $ 3,311 $ 2,464
Weighted average common shares outstanding (in shares) 561 572 564 573
Basic earnings per common share (in dollars per share) $ 1.68 $ 1.43 $ 5.87 $ 4.30
Diluted:        
Weighted average common shares outstanding (in shares) 561 572 564 573
Effect of dilutive securities - stock options and restricted stock (in shares) 2 2 2 3
Diluted weighted average common shares outstanding (in shares) 563 574 566 576
Diluted earnings per common share (in dollars per share) $ 1.67 $ 1.42 $ 5.85 $ 4.28