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FINANCING ACTIVITIES (Tables)
 12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Reconciliation of Common Stock Share Activity
The following table is a reconciliation of common stock share activity:
Shares of AEP Common StockIssuedHeld in Treasury
Balance, December 31, 2021524,416,175 20,204,160 
Issued683,146 — 
Treasury Stock Reissued— (8,970,920)(a)
Balance, December 31, 2022525,099,321 11,233,240 
Issued2,269,836 — 
Treasury Stock Reissued— (10,048,668)(a)
Balance, December 31, 2023527,369,157 1,184,572 
Issued6,725,373 — 
Treasury Stock Reacquired— 2,243 
Balance, December 31, 2024534,094,530 1,186,815 
(a)Reissued Treasury Stock used to fulfill share commitments related to AEP’s Equity Units.
Schedule of Long-term Debt
The following table details long-term debt outstanding:
Weighted-AverageInterest Rate Ranges as ofOutstanding as of
Interest Rate as ofDecember 31,December 31,
CompanyMaturityDecember 31, 20242024202320242023
AEP(in millions)
Senior Unsecured Notes 2025-20544.32%1.00%-8.13%1.00%-8.13%$36,410.9 $33,779.4 
Pollution Control Bonds (a)2025-2036 (b)3.26%0.63%-4.70%0.63%-4.90%1,771.3 1,771.6 
Notes Payable – Nonaffiliated (c)2025-20346.49%0.93%-6.89%0.93%-6.59%609.9 193.3 
Securitization Bonds2025-2039 (d)4.08%2.06%-4.88%2.06%-3.77%578.0 368.9 
Spent Nuclear Fuel Obligation (e)316.3 300.4 
Junior Subordinated Notes2025-20545.67%3.88%-7.05%2.03%-5.70%2,579.1 2,388.1 
Other Long-term Debt2025-20595.60%3.00%-13.72%3.00%-13.72%377.3 1,341.5 
Total Long-term Debt Outstanding$42,642.8 $40,143.2 
AEP Texas
Senior Unsecured Notes2025-20524.39%2.10%-6.76%2.10%-6.76%$5,873.8 $5,027.2 
Pollution Control Bonds (a)2029-2030 (b)3.88%2.60%-4.55%2.60%-4.55%440.3 440.3 
Securitization Bonds2025-2029 (d)2.27%2.06%-2.29%2.06%-2.84%126.8 221.8 
Other Long-term Debt20594.50%4.50%4.50%-6.71%0.7 200.5 
Total Long-term Debt Outstanding
$6,441.6 $5,889.8 
AEPTCo
Senior Unsecured Notes2025-20534.12%2.75%-5.52%2.75%-5.52%$5,768.1 $5,414.4 
Total Long-term Debt Outstanding
$5,768.1 $5,414.4 
APCo
Senior Unsecured Notes2025-20504.75%2.70%-7.00%2.70%-7.00%$4,984.1 $4,584.9 
Pollution Control Bonds (a)2025-2036 (b)2.95%0.63%-4.22%0.63%-4.90%429.9 430.0 
Securitization Bonds2028 (d)3.77%3.77%3.77%119.8 147.0 
Other Long-term Debt2025-20265.84%5.75%-13.72%6.46%-13.72%126.5 426.4 
Total Long-term Debt Outstanding
$5,660.3 $5,588.3 
I&M
Senior Unsecured Notes2028-20534.52%3.25%-6.05%3.25%-6.05%$2,845.2 $2,843.6 
Pollution Control Bonds (a)2025 (b)2.49%0.75%-3.05%0.75%-3.05%189.9 189.4 
Notes Payable – Nonaffiliated (c)2025-20285.78%0.93%-6.41%0.93%-6.59%142.7 163.3 
Spent Nuclear Fuel Obligation (e)316.3 300.4 
Other Long-term Debt20256.00%6.00%6.00%0.2 2.7 
Total Long-term Debt Outstanding
$3,494.3 $3,499.4 
OPCo
Senior Unsecured Notes2030-20514.16%1.63%-6.60%1.63%-6.60%$3,715.7 $3,366.8 
Total Long-term Debt Outstanding
$3,715.7 $3,366.8 
PSO
Senior Unsecured Notes2025-20514.29%2.20%-6.63%2.20%-6.63%$2,854.2 $2,257.8 
Other Long-term Debt20273.00%3.00%3.00%-6.71%1.4 126.8 
Total Long-term Debt Outstanding
$2,855.6 $2,384.6 
SWEPCo
Senior Unsecured Notes2026-20513.73%1.65%-6.20%1.65%-6.20%$3,649.4 $3,646.9 
Securitization Bonds2039 (d)4.88%4.88%—%331.4 — 
Total Long-term Debt Outstanding
$3,980.8 $3,646.9 

(a)For certain series of Pollution Control Bonds, interest rates are subject to periodic adjustment.  Certain series may be purchased on demand at periodic interest adjustment dates.  Letters of credit from banks and insurance policies support certain series. Consequently, these bonds have been classified for maturity purposes as Long-term Debt Due Within One Year - Nonaffiliated on the balance sheets.
(b)Certain Pollution Control Bonds are subject to redemption earlier than the maturity date.
(c)Notes payable represent outstanding promissory notes issued under term loan agreements and credit agreements with a number of banks and other financial institutions. At expiration, all notes then issued and outstanding are due and payable. Interest rates are both fixed and variable. Variable rates generally relate to specified short-term interest rates.
(d)Dates represent the scheduled final payment dates for the securitization bonds. The legal maturity date is one to two years later. These bonds have been classified for maturity and repayment purposes based on the scheduled final payment date.
(e)Spent Nuclear Fuel Obligation consists of a liability along with accrued interest for disposal of SNF. See “Spent Nuclear Fuel Disposal” section of Note 6 for additional information.
The following details long-term debt outstanding as of December 31, 2024 and 2023:

Long-term Debt
 Weighted-AverageInterest Rate Ranges as ofOutstanding as of
Interest Rate as ofDecember 31,December 31,
Type of DebtMaturityDecember 31, 20242024202320242023
    (in millions)
Senior Unsecured Notes2025-20504.29%
1.00%-5.95%
1.00%-5.95%
$5,290.0 $5,265.0 
Pollution Control Bonds2026-2029 (a)3.12%
2.40%-3.75%
1.90%-2.60%
536.8 537.8 
Junior Subordinated Notes2025-20275.67%
3.88%-7.05%
2.03%-5.70%
2,579.0 2,388.1 
Total Long-term Debt Outstanding   8,405.8 8,190.9 
Long-term Debt Due Within One Year1,281.5 1,104.0 
Long-term Debt$7,124.3 $7,086.9 

(a)Certain Pollution Control Bonds are subject to redemption earlier than the maturity date.

Long-term debt outstanding as of December 31, 2024 is payable as follows:
20252026202720282029After 2029Total
 (in millions)
Principal Amount (a)$1,281.5 $50.0 $1,758.3 $930.4 $1,694.5 $2,750.0 $8,464.7 
Unamortized Discount, Net and Debt Issuance Costs      (58.9)
Total Long-term Debt Outstanding      $8,405.8 

(a)Amounts reflect the impact of fair value hedge accounting. See “Accounting for Fair Value Hedging Strategies” section of Note 10 included in the 2024 Annual Report for additional information.
Schedule of Maturities of Long-term Debt
As of December 31, 2024, outstanding long-term debt was payable as follows:
AEPAEP TexasAEPTCoAPCoI&MOPCoPSOSWEPCo
(in millions)
2025$3,335.0 $324.5 $90.0 $798.6 $269.2 $— $125.6 $22.7 
20261,864.4 75.0 425.0 30.9 43.6 — 50.6 916.6 
20272,283.6 25.6 — 355.6 13.7 — 0.3 17.4 
20282,592.0 526.2 60.0 117.8 356.5 — — 593.3 
20292,694.0 627.4 55.0 — — — 100.0 19.2 
After 202930,212.8 4,912.8 5,201.0 4,400.0 2,841.3 3,750.0 2,600.0 2,442.4 
Principal Amount42,981.8 6,491.5 5,831.0 5,702.9 3,524.3 3,750.0 2,876.5 4,011.6 
Unamortized Discount, Net and Debt Issuance Costs
(339.0)(49.9)(62.9)(42.6)(30.0)(34.3)(20.9)(30.8)
Total Long-term Debt Outstanding
$42,642.8 $6,441.6 $5,768.1 $5,660.3 $3,494.3 $3,715.7 $2,855.6 $3,980.8 
Schedule of Dividend Repayment Restrictions As of December 31, 2024, the amount of any such restrictions were as follows:
AEPAEP TexasAEPTCoAPCoI&MOPCoPSOSWEPCo
(in millions)
Restricted Retained Earnings
$3,247.9 (a)$1,109.2 $— $539.2 $707.0 $— $267.7 $366.5 

(a)    Includes the restrictions of consolidated and non-consolidated subsidiaries.
Schedule of Short-term Debt AEP’s outstanding short-term debt was as follows:
December 31,
20242023
CompanyType of DebtOutstanding
Amount		Interest
Rate (a)		Outstanding
Amount		Interest
Rate (a)
(in millions)(in millions)
AEPSecuritized Debt for Receivables (b)$900.0 4.73 %$888.0 5.65 %
AEPCommercial Paper1,618.3 4.70 %1,937.9 5.69 %
SWEPCoNotes Payable5.5 6.69 %4.3 7.71 %
Total Short-term Debt$2,523.8 $2,830.2 

(a)    Weighted-average rate of all borrowings outstanding as of December 31, 2024 and 2023, respectively.
(b)    Amount of securitized debt for receivables as accounted for under the “Transfers and Servicing” accounting guidance.
Parent’s outstanding short-term debt was as follows:
 December 31, 2024December 31, 2023
Type of DebtOutstanding
Amount		Weighted-Average
Interest Rate		Outstanding
Amount		Weighted-Average
Interest Rate
 (in millions) (in millions) 
Commercial Paper$1,618.3 4.70 %$1,937.9 5.69 %
Total Short-term Debt$1,618.3 $1,937.9  
Schedule of Utility Money Pool Participants' Money Pool Activity and Authorized Borrowing Limits The Utility Money Pool participants’ money pool activity and corresponding authorized borrowing limits are described in the following tables:
Year Ended December 31, 2024:
MaximumAverageNet Loans to
BorrowingsMaximumBorrowingsAverage(Borrowings from)Authorized
from the Loans to the from the Loans to the the Utility MoneyShort-term
UtilityUtilityUtilityUtilityPool as ofBorrowing
CompanyMoney PoolMoney PoolMoney PoolMoney PoolDecember 31, 2024Limit
(in millions)
AEP Texas$374.6 $274.3 $233.8 $165.1 $(284.9)$600.0 
AEPTCo313.3 332.0 71.8 138.4 (72.9)820.0 (a)
APCo399.5 132.3 102.6 29.7 (77.3)750.0 
I&M135.8 8.4 58.8 3.9 (126.8)500.0 
OPCo310.0 183.4 180.5 94.2 114.9 600.0 
PSO308.9 314.5 171.4 287.7 232.0 750.0 
SWEPCo362.2 59.3 249.5 57.3 (275.0)750.0 

Year Ended December 31, 2023:
MaximumAverageNet Loans to
BorrowingsMaximumBorrowingsAverage(Borrowings from)Authorized
from theLoans to thefrom the Loans to the the Utility MoneyShort-term
UtilityUtilityUtilityUtilityPool as ofBorrowing
CompanyMoney PoolMoney PoolMoney PoolMoney PoolDecember 31, 2023Limit
(in millions)
AEP Texas$477.5 $42.0 $216.8 $12.9 $(103.7)$600.0 
AEPTCo471.3 309.4 135.6 70.5 (62.8)820.0 (a)
APCo388.6 19.8 283.5 19.0 (320.7)750.0 
I&M475.3 112.2 84.0 44.2 (63.3)500.0 
OPCo485.7 64.7 183.0 40.2 (110.5)500.0 
PSO375.0 121.5 92.5 49.6 (54.4)750.0 
SWEPCo401.6 25.8 150.7 16.5 (88.7)750.0 

(a)    Amount represents the combined authorized short-term borrowing limit the State Transcos have from FERC or state regulatory commissions.
Schedule of Nonutility Money Pool Activity The Nonutility Money Pool participants’ money pool activity is described in the following tables:
Year Ended December 31, 2024:
Maximum LoansAverage LoansLoans to the Nonutility
to the Nonutilityto the NonutilityMoney Pool as of
CompanyMoney PoolMoney PoolDecember 31, 2024
(in millions)
AEP Texas$7.2 $7.1 $7.2 
SWEPCo2.9 2.6 2.3 
Year Ended December 31, 2023:
Maximum LoansAverage LoansLoans to the Nonutility
to the Nonutilityto the NonutilityMoney Pool as of
CompanyMoney PoolMoney PoolDecember 31, 2023
(in millions)
AEP Texas$7.1 $6.9 $7.1 
SWEPCo2.8 2.4 2.2 
Schedule of Direct Borrowing Activity AEPTCo’s direct financing activities with AEP and corresponding authorized borrowing limits are described in the following tables:
Year Ended December 31, 2024:
BorrowingsAuthorized
MaximumMaximumAverageAveragefrom AEPLoans toShort-term
BorrowingsLoansBorrowingsLoansas of AEP as ofBorrowing
Companyfrom AEPto AEPfrom AEPto AEPDecember 31, 2024December 31, 2024Limit (a)
(in millions)
AEPTCo Parent$49.4 $148.5 $14.9 $57.0 $— $20.4 $— 
SWTCo1.9 — 1.8 — 1.8 — 50.0 

Year Ended December 31, 2023:
BorrowingsAuthorized
MaximumMaximumAverageAveragefrom AEPLoans toShort-term
BorrowingsLoansBorrowingsLoansas ofAEP as ofBorrowing
Companyfrom AEPto AEPfrom AEPto AEPDecember 31, 2023December 31, 2023 Limit (a)
(in millions)
AEPTCo Parent$42.7 $158.1 $18.0 $64.2 $42.7 $— $— 
SWTCo1.6 — 1.6 — 1.7 — 50.0 

(a)    Amount represents the authorized short-term borrowing limit from FERC or state regulatory agencies not otherwise included in the utility money pool above. AEPTCo Parent has no short-term borrowing limit.
Schedule of Maximum and Minimum Interest Rates for Funds Either Borrowed from or Loaned to Utility Money Pool
The maximum and minimum interest rates for funds either borrowed from or loaned to the Utility Money Pool are summarized in the following table:
Years Ended December 31,
202420232022
Maximum Interest Rate5.79 %5.81 %5.28 %
Minimum Interest Rate4.74 %4.66 %0.10 %
Schedule of Average Interest Rates for Funds Borrowed from and Loaned to Utility Money Pool
The average interest rates for funds borrowed from and loaned to the Utility Money Pool are summarized in the following table:
Average Interest Rate for Funds Borrowed
from the Utility Money Pool for the
Years Ended December 31,		Average Interest Rate for Funds Loaned
to the Utility Money Pool for the
Years Ended December 31,
Company202420232022202420232022
AEP Texas5.48 %5.46 %1.08 %5.45 %5.71 %1.99 %
AEPTCo5.51 %5.41 %1.81 %5.50 %5.56 %2.47 %
APCo5.51 %5.54 %2.34 %5.41 %5.54 %2.39 %
I&M5.40 %5.14 %2.57 %5.44 %5.57 %2.20 %
OPCo5.70 %5.43 %3.51 %5.20 %5.60 %1.22 %
PSO5.50 %5.51 %2.65 %4.79 %5.35 %0.75 %
SWEPCo5.41 %5.34 %2.80 %4.78 %5.72 %0.55 %
Schedule of Maximum, Minimum and Average Interest Rates for Funds Borrowed from and Loaned to the Nonutility Money Pool
Maximum, minimum and average interest rates for funds loaned to the Nonutility Money Pool are summarized in the following table:
 Maximum Interest Rate Minimum Interest Rate Average Interest Rate
Year Ended for Funds Loaned to for Funds Loaned to for Funds Loaned to
December 31,Company the Nonutility Money Pool the Nonutility Money Pool the Nonutility Money Pool
2024AEP Texas 5.79 %4.74 %5.46 %
2024SWEPCo 5.79 %4.74 %5.45 %
2023AEP Texas5.81 %4.66 %5.54 %
2023SWEPCo5.81 %4.66 %5.56 %
2022AEP Texas5.28 %0.46 %2.23 %
2022SWEPCo5.28 %0.46 %2.23 %
Schedule of Maximum Minimum and Average Interest Rates for Funds Borrowed from and Loaned to AEP
AEPTCo Parent’s and SWTCo’s maximum, minimum and average interest rates for funds either borrowed from or loaned to AEP are summarized in the following table:
  Maximum Minimum Maximum Minimum Average Average
  Interest Rate Interest Rate Interest Rate Interest Rate Interest Rate Interest Rate
  for Funds for Funds for Funds for Funds for Funds for Funds
Year Ended Borrowed from Borrowed from Loaned to Loaned to Borrowed from Loaned to
December 31, AEP AEPAEP AEP AEP AEP
2024 5.79 %4.66 %5.79 %4.66 %5.53 %5.56 %
2023 5.81 %4.53 %5.81 %4.53 %5.56 %5.51 %
20225.28 %0.46 %5.28 %0.46 %2.08 %2.07 %
Schedule of Interest Expense Incurred For Funds Borrowed from Utility Money Pool The Registrant Subsidiaries incurred interest expense for all short-term borrowing activities as follows:
Years Ended December 31,
Company202420232022
(in millions)
AEP Texas$6.7 $10.8 $0.9 
AEPTCo4.3 7.6 3.5 
APCo6.1 16.8 5.6 
I&M4.3 3.2 2.9 
OPCo3.7 9.7 2.3 
PSO8.9 2.3 5.5 
SWEPCo13.6 7.9 4.9 
Schedule of Interest Income Earned for Funds Loaned to Utility Money Pool The Registrant Subsidiaries earned interest income for all short-term lending activities as follows:
Years Ended December 31,
Company202420232022
(in millions)
AEP Texas$4.4 $0.1 $2.6 
AEPTCo10.5 7.0 1.6 
APCo1.6 1.1 2.8 
I&M— 2.4 0.5 
OPCo3.2 0.1 0.4 
PSO1.0 1.5 0.3 
SWEPCo0.2 0.2 0.2 
Schedule of Comparative Accounts Receivable Information
Accounts receivable information for AEP Credit was as follows:
Years Ended December 31,
202420232022
(dollars in millions)
Effective Interest Rates on Securitization of Accounts Receivable5.39 %5.33 %1.84 %
Net Uncollectible Accounts Receivable Written Off$29.4 $30.7 $29.5 
Schedule of Customer Accounts Receivable Managed Portfolio
December 31,
20242023
(in millions)
Accounts Receivable Retained Interest and Pledged as Collateral Less Uncollectible Accounts$1,117.0 $1,207.4 
Short-term – Securitized Debt of Receivables
900.0 888.0 
Delinquent Securitized Accounts Receivable56.2 52.2 
Bad Debt Reserves Related to Securitization44.5 42.0 
Unbilled Receivables Related to Securitization335.5 409.8 
Schedule of Accounts Receivable and Accrued Unbilled Revenues
The amount of accounts receivable and accrued unbilled revenues under the sale of receivables agreement were:
December 31,
Company20242023
(in millions)
APCo$192.7 $184.6 
I&M160.5 156.4 
OPCo470.7 541.7 
PSO111.4 134.6 
SWEPCo153.5 168.3 
Schedule of Fees Paid to AEP Credit for Customer Accounts Receivable Sold
The fees paid to AEP Credit for customer accounts receivable sold were:
Years Ended December 31,
Company202420232022
(in millions)
APCo$15.5 $16.9 $9.4 
I&M15.4 16.3 9.7 
OPCo29.7 29.5 29.8 
PSO14.2 15.3 7.4 
SWEPCo17.6 18.5 9.4 
Schedule of Proceeds on Sale of Receivables to AEP Credit
The proceeds on the sale of receivables to AEP Credit were:
Years Ended December 31,
Company202420232022
(in millions)
APCo$1,953.7 $1,819.8 $1,552.9 
I&M2,105.3 2,054.8 2,045.6 
OPCo3,197.8 3,339.3 3,101.3 
PSO1,781.3 1,944.5 1,809.5 
SWEPCo1,838.1 1,866.4 1,858.4