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Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. (Tables)
6 Months Ended
Jun. 30, 2024
Earnings Per Share [Abstract]  
Computation of shares used in calculating basic and diluted net income per common share
The computation of shares used in calculating basic and diluted net income per share is as follows:
 Three Months Ended
June 30,
Six Months Ended
June 30,
(In millions)2024202320242023
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - basic
582.7 615.4 586.8 621.2 
Common stock equivalents2.7 3.8 3.3 4.1 
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - diluted
585.4 619.2 590.1 625.3