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Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. (Tables) | 9 Months Ended
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Sep. 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 September 30, |  | Nine Months Ended September 30,
(In millions) | 2024 |  | 2023 |  | 2024 |  | 2023
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - basic | 573.7 |  |  | 606.2 |  |  | 582.5 |  |  | 616.2 |
Common stock equivalents | 3.2 |  |  | 4.1 |  |  | 3.2 |  |  | 4.1 |
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - diluted | 576.9 |  |  | 610.3 |  |  | 585.7 |  |  | 620.3 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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