XML 212 R141.htm IDEA: XBRL DOCUMENT
v3.25.0.1

COMMITMENTS, GUARANTEES AND CONTINGENCIES -Contractual Commitments (Details) $ in Millions | Dec. 31, 2024 USD ($)
--- | ---
Other Commitments [Line Items] |
Less Than 1 Year | $ 1,194.8
2-3 Years | 1,326.0
4-5 Years | 810.0
After 5 Years | 832.3
Total | 4,163.1
APPALACHIAN POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 547.1
2-3 Years | 408.5
4-5 Years | 215.0
After 5 Years | 148.2
Total | 1,318.8
INDIANA MICHIGAN POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 271.4
2-3 Years | 582.8
4-5 Years | 452.4
After 5 Years | 585.4
Total | 1,892.0
PUBLIC SERVICE COMPANY OF OKLAHOMA |
Other Commitments [Line Items] |
Less Than 1 Year | 90.3
2-3 Years | 140.6
4-5 Years | 62.4
After 5 Years | 19.7
Total | 313.0
SOUTHWESTERN ELECTRIC POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 100.9
2-3 Years | 59.8
4-5 Years | 0.0
After 5 Years | 0.0
Total | 160.7
Fuel Purchase Contracts |
Other Commitments [Line Items] |
Less Than 1 Year | 1,002.0
2-3 Years | 942.0
4-5 Years | 475.7
After 5 Years | 368.3
Total | 2,788.0
Fuel Purchase Contracts | APPALACHIAN POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 506.7
2-3 Years | 328.6
4-5 Years | 167.0
After 5 Years | 96.0
Total | 1,098.3
Fuel Purchase Contracts | INDIANA MICHIGAN POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 151.5
2-3 Years | 346.6
4-5 Years | 220.7
After 5 Years | 263.9
Total | 982.7
Fuel Purchase Contracts | PUBLIC SERVICE COMPANY OF OKLAHOMA |
Other Commitments [Line Items] |
Less Than 1 Year | 27.4
2-3 Years | 17.0
4-5 Years | 0.0
After 5 Years | 0.0
Total | 44.4
Fuel Purchase Contracts | SOUTHWESTERN ELECTRIC POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 89.4
2-3 Years | 46.6
4-5 Years | 0.0
After 5 Years | 0.0
Total | 136.0
Energy and Capacity Purchase Contracts |
Other Commitments [Line Items] |
Less Than 1 Year | 192.8
2-3 Years | 384.0
4-5 Years | 334.3
After 5 Years | 464.0
Total | 1,375.1
Energy and Capacity Purchase Contracts | APPALACHIAN POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 40.4
2-3 Years | 79.9
4-5 Years | 48.0
After 5 Years | 52.2
Total | 220.5
Energy and Capacity Purchase Contracts | INDIANA MICHIGAN POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 119.9
2-3 Years | 236.2
4-5 Years | 231.7
After 5 Years | 321.5
Total | 909.3
Energy and Capacity Purchase Contracts | OHIO POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 33.2
2-3 Years | 64.2
4-5 Years | 66.3
After 5 Years | 69.5
Total | 233.2
Energy and Capacity Purchase Contracts | PUBLIC SERVICE COMPANY OF OKLAHOMA |
Other Commitments [Line Items] |
Less Than 1 Year | 62.9
2-3 Years | 123.6
4-5 Years | 62.4
After 5 Years | 19.7
Total | 268.6
Energy and Capacity Purchase Contracts | SOUTHWESTERN ELECTRIC POWER COMPANY |
Other Commitments [Line Items] |
Less Than 1 Year | 11.5
2-3 Years | 13.2
4-5 Years | 0.0
After 5 Years | 0.0
Total | $ 24.7

X
- Definition Amount of the recorded unconditional purchase obligation maturing in the next four to five years following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | aep_RecordedUnconditionalPurchaseObligationDueWithinFourToFiveYear
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of the recorded unconditional purchase obligation maturing in the next two to three years following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | aep_RecordedUnconditionalPurchaseObligationDueWithinTwoToThreeYear
Namespace Prefix: | aep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
Name: | us-gaap_RecordedUnconditionalPurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of recorded unconditional purchase obligation maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
Name: | us-gaap_RecordedUnconditionalPurchaseObligationDueAfterFifthYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of recorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-6 + Details
Name: | us-gaap_RecordedUnconditionalPurchaseObligationDueWithinOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=aep_AppalachianPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_IndianaMichiganPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_PublicServiceCompanyOfOklahomaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_SouthwesternElectricPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=aep_FuelPurchaseContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=aep_EnergyAndCapacityPurchaseContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=aep_OhioPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |