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Earnings Per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Reconciliation of Earnings Per Common Share | The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per common share computations for the nine and three months ended September 30, 2019 and 2018 (in millions, except per share amounts):
| Nine Months Ended September 30, |  | Three Months Ended September 30,
2019 |  | 2018 |  | 2019 |  | 2018
Basic: |  |  |  |  |  |  |
Net income attributable to Intercontinental Exchange, Inc. | $ | 1,485 |  |  | $ | 1,377 |  |  | $ | 529 |  |  | $ | 458 |
Weighted average common shares outstanding | 563 |  |  | 577 |  |  | 559 |  |  | 572 |
Basic earnings per common share | $ | 2.64 |  |  | $ | 2.39 |  |  | $ | 0.95 |  |  | $ | 0.80 |
Diluted: |  |  |  |  |  |  |
Weighted average common shares outstanding | 563 |  |  | 577 |  |  | 559 |  |  | 572 |
Effect of dilutive securities - stock options and restricted shares | 3 |  |  | 4 |  |  | 4 |  |  | 4 |
Diluted weighted average common shares outstanding | 566 |  |  | 581 |  |  | 563 |  |  | 576 |
Diluted earnings per common share | $ | 2.62 |  |  | $ | 2.37 |  |  | $ | 0.94 |  |  | $ | 0.79 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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