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EARNINGS PER SHARE EARNINGS PER SHARE (Notes) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | EARNINGS PER SHARE The following tables set forth the computation of basic and diluted EPS for the periods indicated:
| Three Months Ended September 30, 2019
| Income |  | Shares |  | Per Share Amount
| (Thousands, except per share amounts)
Basic EPS |  |  |  |  |
Net income available for common stock | $ | 308,880 |  |  | 413,816 |  |  | $ | 0.75 |
Diluted EPS |  |  |  |  |  |  |
Effect of dilutive securities | — |  |  | 1,762 |  |  |  |
Net income available for common stock and common stock equivalents | $ | 308,880 |  |  | 415,578 |  |  | $ | 0.74 |
| Three Months Ended September 30, 2018
| Income |  | Shares |  | Per Share Amount
| (Thousands, except per share amounts)
Basic EPS |  |  |  |  |
Net income attributable to ONEOK available for common stock | $ | 312,984 |  |  | 412,117 |  |  | $ | 0.76 |
Diluted EPS |  |  |  |  |  |
Effect of dilutive securities | — |  |  | 2,730 |  |  |  |
Net income attributable to ONEOK available for common stock and common stock equivalents | $ | 312,984 |  |  | 414,847 |  |  | $ | 0.75 |
| Nine Months Ended September 30, 2019
| Income |  | Shares |  | Per Share Amount
| (Thousands, except per share amounts)
Basic EPS |  |  |  |  |
Net income available for common stock | $ | 957,501 |  |  | 413,443 |  |  | $ | 2.32 |
Diluted EPS |  |  |  |  |  |  |
Effect of dilutive securities | — |  |  | 1,834 |  |  |  |
Net income available for common stock and common stock equivalents | $ | 957,501 |  |  | 415,277 |  |  | $ | 2.31 |
| Nine Months Ended September 30, 2018
| Income |  | Shares |  | Per Share Amount
| (Thousands, except per share amounts)
Basic EPS |  |  |  |  |
Net income attributable to ONEOK available for common stock | $ | 857,990 |  |  | 411,400 |  |  | $ | 2.09 |
Diluted EPS |  |  |  |  |  |
Effect of dilutive securities | — |  |  | 2,635 |  |  |  |
Net income attributable to ONEOK available for common stock and common stock equivalents | $ | 857,990 |  |  | 414,035 |  |  | $ | 2.07 |

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- References No definition available. + Details
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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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