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Pay vs Performance Disclosure | 12 Months Ended
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Dec. 31, 2022 USD ($) $ / shares | Dec. 31, 2021 USD ($) $ / shares | Dec. 31, 2020 USD ($) $ / shares
Pay vs Performance Disclosure [Table] |  |  |
Pay vs Performance [Table Text Block] | As required by recent changes to SEC rules, we are providing the following information about the relationship between executive compensation and certain measures of financial performance of our Company. SEC rules prescribe the disclosure included in this section, and the information does not necessarily align with how the Company or the Compensation Committee view the link between the Company's performance and its NEOs' pay. The Compensation Discussion and Analysis provides additional information about our pay-for-performance philosophy and how we align executive compensation with our performance. As described in more detail in our Compensation Discussion and Analysis, the Company's annual incentive awards and a large portion of the long-term incentive awards that comprise a significant portion of an executive's compensation are directly linked to performance. Payouts of these portions of an executive's compensation are placed at risk and require the accomplishment of specific results that are designed to benefit our shareholders and the Company, both in the long and short term. While the Company utilizes several performance measures to align executive compensation with Company performance, all of those Company measures are not presented in the Pay Versus Performance table below. Moreover, the Company generally seeks to incentivize long-term performance and therefore does not specifically align the Company's performance measures with compensation that is actually paid (as computed in accordance with SEC rules) for a particular year.
|  |  |  |  |  |  |  |  | Value of Initial Fixed $100 Investment Based On: |  |  |  |  |
Year | Summary Compensation Table Total for PEO ($)(1) |  | Compensation Actually Paid to PEO ($) |  | Average Summary Compensation Table Total for Non-PEO Named Executive Officers ($)(1) |  | Average Compensation Actually Paid to Non-PEO Named Executive Officers ($) |  | Company Total Shareholder Return ($)(2) |  | Peer Group Total Shareholder Return ($)(2)(3) |  | Net Income ($) |  | CSM: OG&E Earnings Per Share (4) |
(a) | (b) |  | (c) |  | (d) |  | (e) |  | (f) |  | (g) |  | (h) |  | (i) |
2022 | $ | 7,303,589 |  | $ | 10,942,870 |  | $ | 1,326,642 |  | $ | 1,706,080 |  | $ | 102.19 |  | $ | 118.48 |  | $ | 665,700,000 |  | $ | 2.19 |
2021 | $ | 8,031,634 |  | $ | 9,075,580 |  | $ | 1,312,638 |  | $ | 1,430,758 |  | $ | 94.95 |  | $ | 116.89 |  | $ | 737,300,000 |  | $ | 1.80 |
2020 | $ | 5,420,683 |  | $ | 850,957 |  | $ | 1,166,864 |  | $ | 259,131 |  | $ | 75.05 |  | $ | 99.10 |  | $ | (173,700,000 | ) | $ | 1.70 |
(1) During 2022, 2021 and 2020, Sean Trauschke was our Chief Executive Officer. During 2022 and 2021, our remaining Named Executive Officers ("NEOs") consisted of W. Bryan Buckler, William H. Sultemeier, Donnie O. Jones and Cristina F. McQuistion. During 2020, our remaining NEOs consisted of Stephen E. Merrill, E. Keith Mitchell, William H. Sultemeier, Jean C. Leger, Jr. and Donnie O. Jones. (2) Both Company Total Shareholder Return and Peer Group Total Shareholder Return assume $100 invested at December 31, 2019. (3) As permitted by the SEC, the Company's peer group selected for this pay versus performance disclosure is the S&P Composite Utilities 1500 Index, which is the same peer group as presented in the Company's 2022 Form 10-K for purposes of Item 201(e) of Regulation S-K. (4) "OG&E Earnings Per Share" represents the Company's annual incentive compensation plan's "OG&E Earnings Target," which is the reported net income of OG&E for the year ended December 31, 2022, divided by the diluted average common shares outstanding for 2022 of the Company. See the Compensation Discussion and Analysis above for further discussion. |  |
Named Executive Officers, Footnote [Text Block] | (1) During 2022, 2021 and 2020, Sean Trauschke was our Chief Executive Officer. During 2022 and 2021, our remaining Named Executive Officers ("NEOs") consisted of W. Bryan Buckler, William H. Sultemeier, Donnie O. Jones and Cristina F. McQuistion. During 2020, our remaining NEOs consisted of Stephen E. Merrill, E. Keith Mitchell, William H. Sultemeier, Jean C. Leger, Jr. and Donnie O. Jones. |  |
PEO Total Compensation Amount | $ 7,303,589 | $ 8,031,634 | $ 5,420,683
PEO Actually Paid Compensation Amount | $ 10,942,870 | 9,075,580 | 850,957
Adjustment To PEO Compensation, Footnote [Text Block] |
Adjustments to Determine CAP for PEO | 2022 |  | 2021 |  | 2020 |
Summary Compensation Table (SCT) Total | $ | 7,303,589 |  | $ | 8,031,634 |  | $ | 5,420,683 |
Adjustments to arrive at CAP: |  |  |  |  |  |
Deduction for change in the actuarial present values reported under column (h) of the SCT |  | (496,397 | ) |  | (1,521,438 | ) |  | (542,985 | )
Increase for "Service Cost" for Pension Plans |  | 1,054,455 |  |  | 720,288 |  |  | 518,763 |
Increase for "Prior Service Cost" for Pension Plans |  | — |  |  | 1,356,957 |  |  | — |
Deduction for amounts reported under column (e) in the SCT |  | (4,340,655 | ) |  | (3,981,998 | ) |  | (3,017,543 | )
Fair value of current year equity awards at year-end |  | 5,189,760 |  |  | 5,242,151 |  |  | 1,815,345 |
Change in value of prior years' awards unvested at year-end |  | 1,304,511 |  |  | (10,710 | ) |  | (1,275,900 | )
Change in value of prior years' awards that vested during current year |  | 688,057 |  |  | 126,658 |  |  | (2,406,394 | )
Deduction of value of prior years' awards that were forfeited during year |  | — |  |  | (971,494 | ) |  | — |
Dividends |  | 239,550 |  |  | 83,532 |  |  | 338,988 |
Total adjustments |  | 3,639,281 |  |  | 1,043,946 |  |  | (4,569,726 | )
CAP Total | $ | 10,942,870 |  | $ | 9,075,580 |  | $ | 850,957 |
Non-PEO NEO Average Total Compensation Amount | $ 1,326,642 | 1,312,638 | 1,166,864
Non-PEO NEO Average Compensation Actually Paid Amount | $ 1,706,080 | 1,430,758 | 259,131
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] |
Adjustments to Determine CAP for Non-PEO NEOs | 2022 |  | 2021 |  | 2020 |
Summary Compensation Table (SCT) Total | $ | 1,326,642 |  | $ | 1,312,638 |  | $ | 1,166,864 |
Adjustments to arrive at CAP: |  |  |  |  |  |
Deduction for change in the actuarial present values reported under column (h) of the SCT |  | — |  |  | — |  |  | (64,087 | )
Increase for "Service Cost" for Pension Plans |  | — |  |  | — |  |  | 60,538 |
Deduction for amounts reported under column (e) in the SCT |  | (571,824 | ) |  | (588,020 | ) |  | (517,874 | )
Fair value of current year equity awards at year-end |  | 683,682 |  |  | 747,322 |  |  | 232,943 |
Fair value of current year equity awards that vested during current year |  | — |  |  | 19,585 |  |  | — |
Change in value of prior years' awards unvested at year-end |  | 171,130 |  |  | (875 | ) |  | (180,006 | )
Change in value of prior years' awards that vested during current year |  | 71,374 |  |  | 10,007 |  |  | (404,331 | )
Deduction of value of prior years' awards that were forfeited during current year |  | — |  |  | (76,765 | ) |  | (91,873 | )
Dividends |  | 25,076 |  |  | 6,866 |  |  | 56,957 |
Total adjustments |  | 379,438 |  |  | 118,120 |  |  | (907,733 | )
CAP Total | $ | 1,706,080 |  | $ | 1,430,758 |  | $ | 259,131 |
Compensation Actually Paid vs. Total Shareholder Return [Text Block] | PEO and Other NEOs' CAP and the Company's TSR. As explained in the Compensation Discussion and Analysis above, approximately 43 percent to 60 percent of total direct compensation (assuming performance at target) of the NEOs is performance based. Of that amount, 52 percent to 68 percent (or 22 percent to 41 percent of targe ted total compensation) is based on a three-year cumulative relative TSR. Accordingly, we believe that the compensation actually paid for the PEO and the other NEOs is aligned with our TSR. The primary reason for this is the use of equity incentives. This alignment is based on two factors. First, for our performance units, the number of units that are actually paid out is dependent solely upon our relative cumulative TSR. Second, for both the performance units and the restricted stock units, the dollar value of those units upon payout is directly tied to our stock price, which is a significant component of our TSR. As indicated in the Pay Versus Performance table above, for both the PEO and other NEOs, compensation actually paid in 2021 increased over 2020 and compensation actually paid in 2022 increased over 2021 just as our TSR in 2021 increased over 2020 and our TSR in 2022 increased over 2021. |  |
Compensation Actually Paid vs. Net Income [Text Block] | PEO and Other NEOs' CAP and Net Income. As discussed above, in 2020, the Company recorded a non-cash impairment on its equity method investment in Enable, which resulted in a net loss for the year. In 2021, the Company's net income was impacted by a gain on transaction related to the Enable and Energy Transfer, LP ("Energy Transfer") merger. In 2022, the Company's net income was impacted by the change in fair value of Energy Transfer's equity securities, which were received by the Company as a result of the Enable/Energy Transfer merger. The Company does not use net income to determine compensation levels or long-term incentive plan payouts and, accordingly, there is not a significant direct correlation between net income and compensation actually paid. One component of the Company's annual incentive plan payouts is based on performance relative to an earnings per share target, thus a portion of the annual incentive compensation is tied to earnings. However, the Company has determined to place a significant emphasis on equity incentives as part of its long-term incentive compensation, which are sensitive to changes in stock price over a three-year period and not directly indicative of net income variations from year to year. |  |
Compensation Actually Paid vs. Company Selected Measure [Text Block] | PEO and Other NEOs' CAP and OG&E Earnings Target. The PEO and other NEOs' compensation actually paid amounts are impacted by our company-selected measure, OG&E Earnings Target, which is part of the NEOs' annual incentive compensation and is based on actual performance relative to an earnings per share target established by the Compensation Committee at the beginning of the year. The OG&E Earnings Target is the most significantly weighted metric for NEO annual incentive compensation. In 2022, the NEOs' annual incentive compensation reflected a weighting of 40 percent for the OG&E Earnings Target, and in 2021 and 2020, the OG&E Earnings Target weighting was 50 percent for our Chief Executive Officer and Chief Financial Officer and was 40 percent for our remaining NEOs. For 2022, 32 percent to 48 percent of performance-based compensation (or approximately 20 percent of targeted total direct compensation) is based on the Annual Incentive Plan results. The OG&E Earnings Target is based on the earnings of OG&E and measured as earnings per diluted share of the Company. In 2020, Company performance relative to the OG&E Earnings Target did not result in a payout, and in 2021 and 2022, Company performance relative to the OG&E Earnings Target resulted in an approximately 114 percent and 150 percent payout, respectively, of the OG&E Earnings Target contribution to the overall Annual Incentive Plan payout. Earnings at OG&E are impacted by weather, and although weather can create significant variability in the Company's performance relative to the OG&E Earnings Target, the Compensation Committee does not normalize the actual results for weather. As indicated in the above Pay Versus Performance table, both the OG&E earnings per share and the compensation actually paid to the PEO and the other NEOs increased each year. This demonstrates that there is correlation between the Company's performance relative to the OG&E Earnings Target and compensation actually paid. However, because the OG&E Earnings Target represents only a portion of the targeted annual incentive compensation (which itself is a smaller part of targeted incentive compensation than targeted long term incentive compensation) and because the OG&E Earnings Target is not an equity award (and thus the value is not impacted by changes in stock price), the correlation is not as direct as with TSR and relative TSR. |  |
Total Shareholder Return Vs Peer Group [Text Block] | The Company's TSR and Peer Group TSR. As presented in the Pay Versus Performance table above, the Company's TSR over the cumulative period of 2020 to 2022 is less than the Peer Group TSR. We believe this difference is primarily driven by the Company's previous midstream industry exposure through its investment in Enable Midstream Partners, LP ("Enable"). In early 2020, we believe the Company experienced a disproportionate impact compared to the utilities within the S&P Composite Utilities 1500 Index as a result of Enable's exposure to OPEC volatility, oil and gas supply/demand concerns related to COVID-19 and the subsequent 50 percent decrease in distributions by Enable. Further, in early 2020, the Company recorded a non-cash impairment on its equity method investment in Enable in light of the rapid deterioration of the midstream oil and gas industry, which significantly impacted the Company’s financial results for 2020. However, the Company's 2021 and 2022 single year TSR outperformed the Peer Group TSR, as seen in the Pay Versus Performance table above when comparing the year over year change in both 2021 and 2022. |  |
Tabular List [Table Text Block] | The three items listed below represent the most important financial metrics the Company used to determine CAP for 2022, as further described in our Compensation Discussion and Analysis above: • Relative TSR Performance Goal (performance units component of long-term incentive); • OG&E Earnings Target (earnings per share component of annual incentive); and • O&M Target (operation and maintenance expense component of annual incentive). |  |
Total Shareholder Return Amount | $ 102.19 | 94.95 | 75.05
Peer Group Total Shareholder Return Amount | 118.48 | 116.89 | 99.10
Net Income (Loss) | $ 665,700,000 | $ 737,300,000 | $ (173,700,000)
Company Selected Measure Amount | $ / shares | 2.19 | 1.80 | 1.70
PEO Name | Sean Trauschke | Sean Trauschke | Sean Trauschke
Measure [Axis]: 1 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Compensation Actually Paid vs. Other Measure [Text Block] | PEO and Other NEOs' CAP and the Company's 3-year Cumulative rTSR. As discussed in the Compensation Discussion and Analysis above, the Company utilizes long-term incentive awards as part of NEO compensation. In 2020 and 2021, long-term incentive awards for our NEOs consisted of 75 percent performance units and 25 percent time-based restricted stock units. In 2022, the portion of time-based restricted stock units was increased to 35 percent of the long-term incentive awards. For performance units, payout is dependent upon rTSR, which is a 3-year cumulative relative TSR that the Company achieved compared to the peer group, which is the approximately 40 utility holding companies and gas and electric utilities in the EEI Index, as discussed above in the Compensation Discussion and Analysis. As a percentile ranking, the Company's rTSR for 2022, 2021 and 2020 was 35 th, 19 th and 41 st, respectively. This level of performance resulted in an approximately 56 percent and 72 percent payout of performance-based units in 2022 and 2020, respectively, with no payout in 2021. The PEO and other NEOs' compensation actually paid amounts compared to 3-year cumulative rTSR indicates there is a strong relationship between rTSR and CAP, particularly moving from 2021 to 2022. For 2021, the increase in compensation actually paid to our PEO and other NEOs is largely impacted by the increase in the Company's stock price from December 31, 2020 ($31.86) to December 31, 2021 ($38.38) and the related increased fair value measurement for performance-based units granted under the Company's Stock Incentive Plan. However, the time periods are not directly correlated, as the Company's rTSR in 2021 reflects the cumulative rTSR for 2019-2021, which the Company believes was significantly impacted by the midstream industry exposure as discussed above. Similar to what is discussed above relating to Company TSR, 52 percent to 68 percent of performance-based compensation (or 22 percent to 41 percent of targeted total direct compensation) is based on a three-year cumulative relative TSR. Accordingly, we believe that the compensation actually paid for the PEO and the other NEOs is aligned with our relative TSR. The number of performance units actually paid out under our Stock Incentive Plan is dependent solely upon our relative three-year cumulative TSR, and the dollar value of those units upon payout, as well as the dollar value of the restricted stock units upon payout, is directly tied to our stock price, which is a significant component of our relative TSR. |  |
Measure Name | Relative TSR Performance Goal (performance units component of long-term incentive) |  |
Measure [Axis]: 2 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | OG&E Earnings Target (earnings per share component of annual incentive) |  |
Measure [Axis]: 3 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | O&M Target (operation and maintenance expense component of annual incentive) |  |
PEO [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ 3,639,281 | $ 1,043,946 | $ (4,569,726)
PEO [Member] | Deduction for change in the actuarial present values reported under column (h) of the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (496,397) | (1,521,438) | (542,985)
PEO [Member] | Increase for Service Cost for Pension Plans [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 1,054,455 | 720,288 | 518,763
PEO [Member] | Increase for Prior Service Cost for Pension Plans [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 1,356,957 | 0
PEO [Member] | Deduction for amounts reported under column (e) in the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (4,340,655) | (3,981,998) | (3,017,543)
PEO [Member] | Fair value of current year equity awards at year-end [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 5,189,760 | 5,242,151 | 1,815,345
PEO [Member] | Change in value of prior years awards unvested at year-end [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 1,304,511 | (10,710) | (1,275,900)
PEO [Member] | Change in value of prior years awards that vested during current year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 688,057 | 126,658 | (2,406,394)
PEO [Member] | Deduction of value of prior years awards that were forfeited during year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | (971,494) | 0
PEO [Member] | Dividends [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 239,550 | 83,532 | 338,988
Non-PEO NEO [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 379,438 | 118,120 | (907,733)
Non-PEO NEO [Member] | Deduction for change in the actuarial present values reported under column (h) of the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 0 | (64,087)
Non-PEO NEO [Member] | Increase for Service Cost for Pension Plans [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 0 | 60,538
Non-PEO NEO [Member] | Deduction for amounts reported under column (e) in the SCT [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (571,824) | (588,020) | (517,874)
Non-PEO NEO [Member] | Fair value of current year equity awards at year-end [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 683,682 | 747,322 | 232,943
Non-PEO NEO [Member] | Fair value of current year equity awards that vested during current year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | 19,585 | 0
Non-PEO NEO [Member] | Change in value of prior years awards unvested at year-end [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 171,130 | (875) | (180,006)
Non-PEO NEO [Member] | Change in value of prior years awards that vested during current year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 71,374 | 10,007 | (404,331)
Non-PEO NEO [Member] | Deduction of value of prior years' awards that were forfeited during current year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 0 | (76,765) | (91,873)
Non-PEO NEO [Member] | Dividends [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ 25,076 | $ 6,866 | $ 56,957

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