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Earnings Per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Reconciliation of the Numerators and Denominators of the Basic and Diluted Earnings Per Common Share | The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per common share computations in 2019, 2018 and 2017 (in millions, except per share amounts):
| Year Ended December 31,
2019 |  | 2018 |  | 2017
Basic: |  |  |  |  |
| Year Ended December 31,
2019 |  | 2018 |  | 2017
Net income attributable to Intercontinental Exchange, Inc. | $ | 1,933 |  |  | $ | 1,988 |  |  | $ | 2,526 |
Weighted average common shares outstanding | 561 |  |  | 575 |  |  | 589 |
Basic earnings per common share | $ | 3.44 |  |  | $ | 3.46 |  |  | $ | 4.29 |
Diluted: |  |  |  |  |
Weighted average common shares outstanding | 561 |  |  | 575 |  |  | 589 |
Effect of dilutive securities - stock options and restricted stock | 4 |  |  | 4 |  |  | 5 |
Diluted weighted average common shares outstanding | 565 |  |  | 579 |  |  | 594 |
Diluted earnings per common share | $ | 3.42 |  |  | $ | 3.43 |  |  | $ | 4.25 |

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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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