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Related Party Disclosures (Tables) | 12 Months Ended
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Dec. 31, 2020
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 years ended December 31, 2020, 2019 and 2018.
| Year Ended December 31,
(In millions) | 2020 | 2019 | 2018
Operating revenues: |  |  |
Electricity to power electric compression assets | $ | 15.1 |  | $ | 15.9 |  | $ | 16.3 |
Cost of sales: |  |  |
Natural gas transportation services | $ | 32.8 |  | $ | 41.2 |  | $ | 37.9 |
Natural gas purchases (sales) | $ | 2.7 |  | $ | (6.0) |  | $ | (3.2) |

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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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