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Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. (Tables) | 6 Months Ended
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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) | 2024 |  | 2023 |  | 2024 |  | 2023
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 equivalents | 2.7 |  |  | 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 |

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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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