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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2023
Earnings Per Share [Abstract] |
Schedule of Calculation for Basic and Diluted Earnings per Share | The calculation of basic and diluted EPS for the three months ended March 31 is as follows:
(in millions, except per share amounts) | 2023 |  | 2022 |  |  |  |
Amounts attributable to S&P Global Inc. common shareholders: |  |  |  |  |  |  |
Net income | $ | 795 |  |  | $ | 1,235 |  |  |  |  |
Basic weighted-average number of common shares outstanding | 321.3 |  |  | 275.2 |  |  |  |  |
Effect of stock options and other dilutive securities | 0.8 |  |  | 1.1 |  |  |  |  |
Diluted weighted-average number of common shares outstanding | 322.1 |  |  | 276.3 |  |  |  |  |
Earnings per share attributable to S&P Global Inc. common shareholders: |  |  |  |  |  |  |
Net income: |  |  |  |  |  |  |
Basic | $ | 2.47 |  |  | $ | 4.49 |  |  |  |  |
Diluted | $ | 2.47 |  |  | $ | 4.47 |  |  |  |  |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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