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Related Party Disclosures (Tables) | 6 Months Ended
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Jun. 30, 2021
Related Party Transactions [Abstract] |
Schedule of Related Party Transactions [Table Text Block] | The following table presents summarized related party transactions between OG&E and Enable during the three and six months ended June 30, 2021 and 2020.
| Three Months Ended | Six Months Ended
| June 30, | June 30,
(In millions) | 2021 | 2020 | 2021 | 2020
Operating revenues: |  |  |  |
Electricity to power electric compression assets | $ | 3.3 |  | $ | 3.5 |  | $ | 5.9 |  | $ | 7.2 |
Fuel, purchased power and direct transmission expense: |  |  |  |
Natural gas transportation services | $ | 9.3 |  | $ | 9.4 |  | $ | 14.0 |  | $ | 14.1 |
Natural gas purchases (sales) | $ | (8.4) |  | $ | (1.7) |  | $ | (20.6) |  | $ | (1.0) |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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