XML 38 R26.htm IDEA: XBRL DOCUMENT
v3.22.2

Summary of Significant Accounting Policies (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Regulatory Assets and Liabilities [Table Text Block] | The following table presents a summary of OG&E's regulatory assets and liabilities.
| June 30, | December 31,
(In millions) | 2022 | 2021
REGULATORY ASSETS |  |
Current: |  |
Oklahoma Winter Storm Uri costs (A) | $ | 750.5 |  | $ | — |
Fuel clause under recoveries | 271.7 |  | 151.9 |
SPP cost tracker under recovery (A) | 8.1 |  | 9.3 |
Oklahoma Energy Efficiency Rider under recoveries (A) | — |  | 11.7 |
Other (A) | 10.7 |  | 9.7 |
Total current regulatory assets | $ | 1,041.0 |  | $ | 182.6 |
Non-current: |  |
Oklahoma Winter Storm Uri costs | $ | — |  | $ | 747.9 |
Oklahoma deferred storm expenses | 210.5 |  | 172.8 |
Benefit obligations regulatory asset | 101.0 |  | 109.2 |
Arkansas Winter Storm Uri costs | 83.9 |  | 88.9 |
Pension tracker | 45.7 |  | 42.9 |
Sooner Dry Scrubbers | 18.5 |  | 18.9 |
Arkansas deferred pension expenses | 12.1 |  | 12.1 |
Unamortized loss on reacquired debt | 8.5 |  | 8.9 |
COVID-19 impacts | 8.3 |  | 8.2 |
Frontier Plant deferred expenses | 6.0 |  | 6.7 |
Smart Grid | 0.4 |  | 3.9 |
Other | 10.2 |  | 10.4 |
Total non-current regulatory assets | $ | 505.1 |  | $ | 1,230.8 |
REGULATORY LIABILITIES |  |
Current: |  |
Other (B) | $ | 4.6 |  | $ | 2.5 |
Total current regulatory liabilities | $ | 4.6 |  | $ | 2.5 |
Non-current: |  |
Income taxes refundable to customers, net | $ | 918.5 |  | $ | 930.7 |
Accrued removal obligations, net | 283.7 |  | 296.8 |
Other | 3.1 |  | 3.6 |
Total non-current regulatory liabilities | $ | 1,205.3 |  | $ | 1,231.1 |
(A)Included in Other Current Assets in the condensed balance sheets. The Oklahoma Winter Storm Uri regulatory asset was reclassified as current at June 30, 2022, in anticipation of the securitization process being completed in July 2022 and OG&E receiving funds from the ODFA. (B)Included in Other Current Liabilities in the condensed balance sheets.
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following tables present changes in the components of accumulated other comprehensive income (loss) attributable to OGE Energy during the six months ended June 30, 2022 and 2021. All amounts below are presented net of tax.
(In millions) | Pension Plan and Restoration of Retirement Income Plan |  | Postretirement Benefit Plans |  |  |  |  |  | Total
Balance at December 31, 2021 | $ | (26.1) |  |  |  |  | $ | 1.3 |  |  |  |  |  |  |  | $ | (24.8) |
Other comprehensive income (loss) before reclassifications | — |  |  |  |  | — |  |  |  |  |  |  |  | — |
Amounts reclassified from accumulated other comprehensive income | 0.6 |  |  |  |  | — |  |  |  |  |  |  |  | 0.6 |
Settlement cost | 8.1 |  |  |  |  | — |  |  |  |  |  |  |  | 8.1 |
Balance at June 30, 2022 | $ | (17.4) |  |  |  |  | $ | 1.3 |  |  |  |  |  |  |  | $ | (16.1) |
(In millions) | Pension Plan and Restoration of Retirement Income Plan |  |  | Postretirement Benefit Plans |  | Other Comprehensive Gain (Loss) from Unconsolidated Affiliates |  | Total
Balance at December 31, 2020 | $ | (34.1) |  |  |  |  | $ | 3.3 |  |  |  | $ | (1.3) |  |  | $ | (32.1) |
Other comprehensive income before reclassifications | — |  |  |  |  | — |  |  |  | 0.3 |  |  | 0.3 |
Amounts reclassified from accumulated other comprehensive income (loss) | 0.8 |  |  |  |  | (0.6) |  |  |  | — |  |  | 0.2 |
Settlement cost | 3.7 |  |  |  |  | — |  |  |  | — |  |  | 3.7 |
Balance at June 30, 2021 | $ | (29.6) |  |  |  |  | $ | 2.7 |  |  |  | $ | (1.0) |  |  | $ | (27.9) |
Schedule of Amounts Reclassified out of Accumulated Other Comprehensive Income [Table Text Block] | The following table presents significant amounts reclassified out of accumulated other comprehensive income (loss) attributable to OGE Energy by the respective line items in net income during the three and six months ended June 30, 2022 and 2021.
Details about Accumulated Other Comprehensive Income (Loss) Components | Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Affected Line Item in OGE Energy's Statements of Income
| Three Months Ended | Six Months Ended |
| June 30, | June 30, |
(In millions) | 2022 | 2021 | 2022 | 2021 |
Amortization of Pension Plan and Restoration of Retirement Income Plan items: |  |  |  |  |
Actuarial losses | $ | (0.4) |  | $ | (0.4) |  | $ | (0.8) |  | $ | (1.2) |  | (A)
Prior service cost | — |  | — |  | (0.1) |  | — |  | (A)
Settlement cost | (0.9) |  | (1.2) |  | (10.5) |  | (5.3) |  | (A)
| (1.3) |  | (1.6) |  | (11.4) |  | (6.5) |  | Income Before Taxes
| (0.4) |  | (0.8) |  | (2.7) |  | (2.0) |  | Income Tax Expense
| $ | (0.9) |  | $ | (0.8) |  | $ | (8.7) |  | $ | (4.5) |  | Net Income
Amortization of postretirement benefit plans items: |  |  |  |  |
Prior service credit | $ | — |  | $ | 0.5 |  | $ | — |  | $ | 0.9 |  | (A)
Actuarial losses | — |  | (0.1) |  | — |  | (0.1) |  | (A)
| — |  | 0.4 |  | — |  | 0.8 |  | Income Before Taxes
| — |  | 0.1 |  | — |  | 0.2 |  | Income Tax Expense
| $ | — |  | $ | 0.3 |  | $ | — |  | $ | 0.6 |  | Net Income
Total reclassifications for the period, net of tax | $ | (0.9) |  | $ | (0.5) |  | $ | (8.7) |  | $ | (3.9) |  | Net Income
(A)These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (see Note 11 for additional information).
Reconciliation of Equity in Earnings of Unconsolidated Affiliates [Table Text Block] | The following table presents a reconciliation of OGE Energy's equity in earnings of unconsolidated affiliates for the three and six months ended June 30, 2021.
(In millions) | Three Months Ended | Six Months Ended
Enable net income | $ | 79.0 |  | $ | 234.0 |
OGE Energy's percent ownership at period end | 25.5 | % | 25.5 | %
OGE Energy's portion of Enable net income | $ | 20.0 |  | $ | 59.5 |
Amortization of basis difference and dilution recognition (A) | 13.5 |  | 27.2 |
Equity in earnings of unconsolidated affiliates | $ | 33.5 |  | $ | 86.7 |
(A)Includes loss on dilution, net of proportional basis difference recognition.
Unrealized Gain (Loss) on Investments | Through the end of July 2022, OGE Energy has sold 73.3 million Energy Transfer limited partner units, resulting in pre-tax net proceeds of $812.6 million and a remaining ownership percentage of less than one percent based on the latest publicly available information filed by Energy Transfer.
(In millions) | Three Months Ended June 30, 2022 | Six Months Ended June 30, 2022
Gain (loss) on equity securities | $ | (39.6) |  | $ | 242.7 |
Net gain recognized on equity securities sold | 6.7 |  | 175.7 |
Unrealized gain (loss) on equity securities held | $ | (46.3) |  | $ | 67.0 |

X
- Definition [Table Text Block] for Reconciliation of Equity in Earnings of Unconsolidated Affiliates [Table] + References No definition available. + Details
Name: | oge_ReconciliationofEquityinEarningsofUnconsolidatedAffiliatesTableTextBlock
Namespace Prefix: | oge_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition A table of assets and liabilities that are created when regulatory agencies permit public utilities to defer certain costs and recognition of certain revenues that are included in rate-setting to the balance sheet. + References No definition available. + Details
Name: | oge_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | oge_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of unrealized gains and losses on investments. + References No definition available. + Details
Name: | us-gaap_UnrealizedGainLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration