XML 45 R33.htm IDEA: XBRL DOCUMENT
v3.21.1

Common Equity (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Equity [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following table presents the calculation of basic and diluted earnings (loss) per share for OGE Energy.
|  | Three Months Ended March 31,
(In millions except per share data) |  |  | 2021 | 2020
Net income (loss) |  |  | $ | 52.7 |  | $ | (491.8) |
Average common shares outstanding: |  |  |  |
Basic average common shares outstanding |  |  | 200.1 |  | 200.2 |
Effect of dilutive securities: |  |  |  |
Contingently issuable shares (performance and restricted stock units) |  |  | — |  | — |
Diluted average common shares outstanding |  |  | 200.1 |  | 200.2 |
Basic earnings (loss) per average common share |  |  | $ | 0.26 |  | $ | (2.46) |
Diluted earnings (loss) per average common share |  |  | $ | 0.26 |  | $ | (2.46) |
Anti-dilutive shares excluded from earnings per share calculation |  |  | — |  | 0.3 |

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration