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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2025
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) | 2025 |  | 2024 |  |  |  |
Amounts attributable to S&P Global Inc. common shareholders: |  |  |  |  |  |  |
Net income | $ | 1,090 |  |  | $ | 991 |  |  |  |  |
Basic weighted-average number of common shares outstanding | 307.3 |  |  | 313.6 |  |  |  |  |
Effect of dilutive securities | 0.4 |  |  | 0.4 |  |  |  |  |
Diluted weighted-average number of common shares outstanding | 307.7 |  |  | 314.0 |  |  |  |  |
Earnings per share attributable to S&P Global Inc. common shareholders: |  |  |  |  |  |  |
Net income: |  |  |  |  |  |  |
Basic | $ | 3.55 |  |  | $ | 3.16 |  |  |  |  |
Diluted | $ | 3.54 |  |  | $ | 3.16 |  |  |  |  |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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