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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share |
Schedule of the reconciliation of basic weighted average common shares outstanding to diluted weighted average common shares outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(dollars and shares in millions, except per share data) |  | 2019 |  | 2018 |  | 2017
Net income attributable to Amphenol Corporation shareholders | ​ | $ | 1,155.0 | ​ | $ | 1,205.0 | ​ | $ | 650.5
Basic weighted average common shares outstanding | ​ |  | 297.5 | ​ |  | 301.2 | ​ |  | 305.7
Effect of dilutive stock options | ​ |  | 10.4 | ​ |  | 11.4 | ​ |  | 10.8
Diluted weighted average common shares outstanding | ​ |  | 307.9 | ​ |  | 312.6 | ​ |  | 316.5
Earnings per share attributable to Amphenol Corporation shareholders: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 3.88 | ​ | $ | 4.00 | ​ | $ | 2.13
Diluted | ​ | $ | 3.75 | ​ | $ | 3.85 | ​ | $ | 2.06

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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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