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v3.23.3

Acquisitions and Dispositions (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) MW | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Accounts Receivable and Accrued Unbilled Revenues |  |  |  | $ 976,800,000 |  | $ 1,145,100,000
Net Property, Plant and Equipment |  |  |  | 75,821,100,000 |  | 73,339,100,000
Accounts Payable, Current |  |  |  | 2,258,600,000 |  | 2,670,800,000
Asset Retirement Obligation | [1],[2],[3],[4],[5],[6] |  |  | 2,959,500,000 |  | 2,944,900,000
Proceeds from Sale of Property, Plant, and Equipment |  |  |  | 1,335,600,000 | $ 215,700,000 |
North Central Wind Energy Facilities |  |  |  |  |  |
Payments to Acquire Property, Plant, and Equipment |  |  |  | 2,000,000,000 |  |
Transmission Operations [Member] |  |  |  |  |  |
Enterprise Value |  |  |  | 2,850,000,000 |  |
Transmission Operations [Member] | Proceeds for KY Operations |  |  |  |  |  |
Enterprise Value |  |  |  | 2,646,000,000 |  |
Generation And Marketing [Member] | Proceeds of Mineral Rights Sale |  |  |  |  |  |
Proceeds from Sale of Property, Plant, and Equipment |  |  | $ 120,000,000 |  |  |
Gain (Loss) on Disposition of Other Assets |  |  | 116,000,000 |  |  |
Generation And Marketing [Member] | BP Wind Energy |  |  |  |  |  |
Impairment of Equity Method Investment |  | $ 2,000,000 | $ 186,000,000 |  |  |
Generation And Marketing [Member] | Competitive Contracted Renewables |  |  |  |  |  |
Proceeds from Sale of Productive Assets |  |  |  | 1,200,000,000 |  |
Gain (Loss) on Disposition of Business |  |  |  | 112,000,000 |  |
gain (loss) on Disposition of Business net of Tax |  |  |  | 88,000,000 |  |
Vertically Integrated Utilities [Member] |  |  |  |  |  |
Enterprise Value |  |  |  | 2,850,000,000 |  |
Pretax Reduction in Investment Basis |  |  |  | 335,000,000 |  |
Vertically Integrated Utilities [Member] | Proceeds for KY Operations |  |  |  |  |  |
Enterprise Value |  |  |  | $ 2,646,000,000 |  |
Vertically Integrated Utilities [Member] | Sundance [Member] |  |  |  |  |  |
Wind Generation MWs | MW |  |  |  | 199 |  |
Vertically Integrated Utilities [Member] | Maverick [Member] |  |  |  |  |  |
Wind Generation MWs | MW |  |  |  | 287 |  |
Vertically Integrated Utilities [Member] | Traverse [Member] |  |  |  |  |  |
Wind Generation MWs | MW |  |  |  | 998 |  |
Vertically Integrated Utilities [Member] | Traverse [Member] | North Central Wind Energy Facilities |  |  |  |  |  |
Payments to Acquire Property, Plant, and Equipment |  |  |  | $ 1,200,000,000 |  |
Vertically Integrated Utilities [Member] | North Central Wind Energy Facilities |  |  |  |  |  |
Wind Generation MWs | MW |  |  |  | 1,484 |  |
Public Service Co Of Oklahoma [Member] |  |  |  |  |  |
Percentage of an Asset Acquired |  |  |  | 45.50% |  |
Payments to Acquire Property, Plant, and Equipment |  |  |  | $ 146,000,000 |  |
Accounts Receivable and Accrued Unbilled Revenues |  |  |  | 78,800,000 |  | 70,100,000
Net Property, Plant and Equipment |  |  |  | 6,025,100,000 |  | 5,626,500,000
Accounts Payable, Current |  |  |  | $ 233,300,000 |  | 202,900,000
Southwestern Electric Power Co [Member] |  |  |  |  |  |
Percentage of an Asset Acquired |  |  |  | 54.50% |  |
Payments to Acquire Property, Plant, and Equipment |  |  |  | $ 0 | $ 658,000,000.0 |
Accounts Receivable and Accrued Unbilled Revenues |  |  |  | 32,900,000 |  | 38,800,000
Net Property, Plant and Equipment |  |  |  | 8,562,500,000 |  | 8,262,200,000
Accounts Payable, Current |  |  |  | 232,100,000 |  | 213,100,000
Asset Retirement Obligation | [1],[3],[4],[5] |  |  | 261,800,000 |  | 282,200,000
AEP Transmission Co [Member] |  |  |  |  |  |
Accounts Receivable and Accrued Unbilled Revenues |  |  |  | 80,400,000 |  | 46,900,000
Net Property, Plant and Equipment |  |  |  | 14,318,900,000 |  | 13,339,900,000
Accounts Payable, Current |  |  |  | $ 336,100,000 |  | $ 427,800,000
[1] | In 2023, SWEPCo settled $35 million of costs related to closure/reclamation work performed due to the recent retirements of the Pirkey Plant and Dolet Hills Power Station. See “Coal-Fired Generation Plants” section of Note 4 for additional information.
[2] | In August 2023, AEP completed the sale of its competitive contracted renewables portfolio to a nonaffiliated party and settled ARO liabilities of $31 million. See “Disposition of the Competitive Contracted Renewables Portfolio” section of Note 6 for additional information
[3] | Includes ARO related to Sabine and DHLC.
[4] | Includes ARO related to asbestos removal.
[5] | Includes ARO related to ash disposal facilities.
[6] | Includes ARO related to nuclear decommissioning costs for the Cook Plant of $2.05 billion and $2 billion as of September 30, 2023 and December 31, 2022, respectively.

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