Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. (Tables)

3 Months Ended

Mar. 31, 2021

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 March 31,
(In millions)	2021	2020
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - basic	668.6	678.1
Common stock equivalents	11.3	13.1
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - diluted	679.9	691.2