Condensed Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Current Assets
Cash and Cash Equivalents		$ 245.8	$ 330.1
Restricted Cash		53.4	48.9
Other Temporary Investments		228.6	214.3
Accounts Receivable:
Customers		963.6	1,029.9
Accrued Unbilled Revenues		303.2	179.5
Pledged Accounts Receivable - AEP Credit		1,330.3	1,249.4
Miscellaneous		65.4	48.7
Allowance for Uncollectible Accounts		(65.4)	(60.1)
Total Accounts Receivable		2,597.1	2,447.4
Fuel		704.0	853.7
Materials and Supplies		981.7	1,025.8
Risk Management Assets		236.7	217.5
Accrued Tax Benefits		125.4	156.2
Regulatory Asset for Under-Recovered Fuel Costs		399.7	514.0
Prepayments and Other Current Assets		448.4	274.2
TOTAL CURRENT ASSETS		6,020.8	6,082.1
Property, Plant and Equipment
Generation		24,504.5	24,329.5
Transmission		37,309.8	35,934.1
Distribution		30,486.1	28,989.9
Other Property, Plant and Equipment		6,829.2	6,484.9
Construction Work in Progress		6,797.0	5,508.0
Total Property, Plant and Equipment		105,926.6	101,246.4
Accumulated Depreciation and Amortization		25,852.8	24,553.0
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		80,073.8	76,693.4
Other Noncurrent Assets
Regulatory Assets		5,318.9	5,092.4
Securitized Assets		253.4	336.3
Spent Nuclear Fuel and Decommissioning Trusts		4,425.8	3,860.2
Goodwill		52.5	52.5
Long-term Risk Management Assets		258.3	321.2
Operating Lease Assets		572.9	620.2
Deferred Charges and Other Noncurrent Assets		3,142.7	3,625.7
TOTAL OTHER NONCURRENT ASSETS		14,024.5	13,908.5
TOTAL ASSETS		100,119.1	96,684.0
Current Liabilities
Accounts Payable		2,265.6	2,032.5
Short-term Debt:
Securitized Debt for Receivables - AEP Credit	[1]	900.0	888.0
Other Short-term Debt		759.6	1,942.2
Total Short-term Debt		1,659.6	2,830.2
Long-term Debt Due Within One Year		2,826.7	2,490.5
Risk Management Liabilities		152.0	229.6
Customer Deposits		410.6	423.7
Accrued Taxes		1,236.6	1,800.1
Accrued Interest		584.4	410.2
Obligations Under Operating Leases		96.7	115.7
Other Current Liabilities		1,415.4	1,251.1
TOTAL CURRENT LIABILITIES		10,647.6	11,583.6
Noncurrent Liabilities
Long-term Debt		39,147.7	37,652.7
Deferred Income Tax Liabilities, Net		9,958.8	9,415.7
Long-term Risk Management Liabilities		201.6	241.8
Regulatory Liabilities and Deferred Investment Tax Credits		8,366.2	8,182.4
Asset Retirement Obligations		3,687.7	2,972.5
Employee Benefits and Pension Obligations		216.5	241.7
Obligations Under Operating Leases		490.5	519.4
Deferred Credits and Other Noncurrent Liabilities		677.9	545.8
TOTAL NONCURRENT LIABILITIES		62,746.9	59,772.0
TOTAL LIABILITIES		73,394.5	71,355.6
Rate Matters
Commitments and Contingencies
Contingently Reedemable Performance Share Awards		65.8	42.5
Total Mezzanine Equity		65.8	42.5
Equity
Common Stock		3,468.7	3,427.9
Paid-in Capital		9,534.9	9,073.9
Retained Earnings		13,700.7	12,800.4
Accumulated Other Comprehensive Income (Loss)		(86.9)	(55.5)
TOTAL COMMON SHAREHOLDER'S EQUITY		26,617.4	25,246.7
Noncontrolling Interests		41.4	39.2
TOTAL EQUITY		26,658.8	25,285.9
TOTAL LIABILITIES AND EQUITY		$ 100,119.1	$ 96,684.0
Common Stock, No Par Value		$ 6.50	$ 6.50
Common Stock, Shares Authorized		600,000,000	600,000,000
Common Stock, Shares, Issued		533,652,728	527,369,157
Treasury Stock, Shares		1,184,572	1,184,572
Commodity [Member]
Equity
Cross Default Provisions Maximum Third Party Obligation Amount		$ 50.0
Subsidiaries [Member]
Current Assets
Restricted Cash		53.4	$ 48.9
Other Temporary Investments		216.3	205.0
Short-term Debt:
Long-term Debt Due Within One Year		190.7	207.2
Noncurrent Liabilities
Long-term Debt		545.9	556.3
AEP Texas Inc. [Member]
Current Assets
Cash and Cash Equivalents		0.1	0.1
Restricted Cash		45.1	34.0
Accounts Receivable:
Customers		213.0	176.5
Accrued Unbilled Revenues		116.7	82.3
Miscellaneous		0.3	0.8
Allowance for Uncollectible Accounts		(4.1)	(4.9)
Total Accounts Receivable		346.3	278.5
Materials and Supplies		178.6	190.4
Insurance Settlements Receivable		55.0	0.0
Prepayments and Other Current Assets		17.5	10.0
TOTAL CURRENT ASSETS		704.4	520.1
Property, Plant and Equipment
Transmission		7,180.8	6,812.6
Distribution		6,157.0	5,798.8
Other Property, Plant and Equipment		1,172.2	1,145.9
Construction Work in Progress		1,159.0	904.6
Total Property, Plant and Equipment		15,669.0	14,661.9
Accumulated Depreciation and Amortization		2,018.2	1,887.9
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		13,650.8	12,774.0
Other Noncurrent Assets
Regulatory Assets		354.0	315.3
Securitized Assets		140.4	202.9
Deferred Charges and Other Noncurrent Assets		195.5	178.4
TOTAL OTHER NONCURRENT ASSETS		689.9	696.6
TOTAL ASSETS		15,045.1	13,990.7
Current Liabilities
Accounts Payable		273.5	192.3
Short-term Debt:
Long-term Debt Due Within One Year		113.9	96.0
Accrued Taxes		152.9	99.1
Accrued Interest		97.1	49.2
Obligations Under Operating Leases		16.1	28.7
Estimated Litigation Liability		55.0	0.0
Other Current Liabilities		193.3	152.7
TOTAL CURRENT LIABILITIES		931.1	749.4
Noncurrent Liabilities
Long-term Debt		6,365.5	5,793.8
Deferred Income Tax Liabilities, Net		1,306.6	1,227.8
Regulatory Liabilities and Deferred Investment Tax Credits		1,283.0	1,261.4
Obligations Under Operating Leases		45.9	50.9
Deferred Credits and Other Noncurrent Liabilities		119.4	111.3
TOTAL NONCURRENT LIABILITIES		9,120.4	8,445.2
TOTAL LIABILITIES		10,051.5	9,194.6
Rate Matters
Commitments and Contingencies
Equity
Paid-in Capital		2,080.5	2,079.6
Retained Earnings		2,915.7	2,725.1
Accumulated Other Comprehensive Income (Loss)		(2.6)	(8.6)
TOTAL EQUITY		4,993.6	4,796.1
TOTAL LIABILITIES AND EQUITY		15,045.1	13,990.7
AEP Texas Inc. [Member] | Related Party
Current Assets
Advances to Affiliates		61.8	7.1
Accounts Receivable:
Affiliated Companies - Contracts with Customers		20.4	23.8
Current Liabilities
Advances from Affiliates		0.0	103.7
Accounts Payable		29.3	27.7
AEP Texas Inc. [Member] | AEP Texas Transition Funding and Restoration Funding [Member]
Current Assets
Restricted Cash		45.1	34.0
Other Noncurrent Assets
Securitized Assets		140.4	202.9
Short-term Debt:
Long-term Debt Due Within One Year		63.9	95.9
Accrued Interest		1.4	2.0
Noncurrent Liabilities
Long-term Debt		102.1	125.9
AEP Transmission Co [Member]
Current Assets
Cash and Cash Equivalents		0.0	0.0
Accounts Receivable:
Customers		61.2	82.2
Total Accounts Receivable		202.3	207.7
Prepayments and Other Current Assets		12.5	4.0
TOTAL CURRENT ASSETS		396.6	278.8
Property, Plant and Equipment
Transmission		14,209.3	13,723.9
Other Property, Plant and Equipment		511.1	501.4
Construction Work in Progress		2,188.6	1,563.7
Total Property, Plant and Equipment		16,909.0	15,789.0
Accumulated Depreciation and Amortization		1,509.4	1,291.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		15,399.6	14,497.7
Other Noncurrent Assets
Regulatory Assets		0.9	3.1
Deferred Property Taxes		90.1	286.4
Deferred Charges and Other Noncurrent Assets		7.1	6.5
TOTAL OTHER NONCURRENT ASSETS		98.1	296.0
TOTAL ASSETS		15,894.3	15,072.5
Current Liabilities
Accounts Payable		322.5	274.7
Short-term Debt:
Long-term Debt Due Within One Year		185.0	95.0
Accrued Taxes		418.9	568.6
Accrued Interest		68.4	39.6
Obligations Under Operating Leases		1.2	1.3
Other Current Liabilities		21.9	24.7
TOTAL CURRENT LIABILITIES		1,155.5	1,286.1
Noncurrent Liabilities
Long-term Debt		5,677.3	5,319.4
Deferred Income Tax Liabilities, Net		1,236.9	1,147.7
Regulatory Liabilities and Deferred Investment Tax Credits		857.1	783.7
Obligations Under Operating Leases		1.1	1.4
Deferred Credits and Other Noncurrent Liabilities		151.8	200.9
TOTAL NONCURRENT LIABILITIES		7,924.2	7,453.1
TOTAL LIABILITIES		9,079.7	8,739.2
Rate Matters
Commitments and Contingencies
Equity
Paid-in Captial		3,073.5	3,043.4
Retained Earnings		3,741.1	3,289.9
TOTAL MEMBER'S EQUITY		6,814.6	6,333.3
TOTAL LIABILITIES AND EQUITY		15,894.3	15,072.5
AEP Transmission Co [Member] | Related Party
Current Assets
Advances to Affiliates		181.8	67.1
Accounts Receivable:
Affiliated Companies - Contracts with Customers		141.1	125.5
Current Liabilities
Advances from Affiliates		42.8	174.3
Accounts Payable		94.8	107.9
Appalachian Power Co [Member]
Current Assets
Cash and Cash Equivalents		6.5	5.0
Restricted Cash		8.3	14.9
Accounts Receivable:
Customers		183.0	170.3
Accrued Unbilled Revenues		53.3	70.8
Miscellaneous		0.2	0.6
Allowance for Uncollectible Accounts		(2.0)	(2.0)
Total Accounts Receivable		337.2	338.5
Fuel		270.3	315.0
Materials and Supplies		130.9	148.4
Risk Management Assets		47.1	22.4
Regulatory Asset for Under-Recovered Fuel Costs		153.7	155.4
Prepayments and Other Current Assets		64.8	40.5
TOTAL CURRENT ASSETS		1,037.7	1,059.0
Property, Plant and Equipment
Generation		7,245.9	7,041.3
Transmission		4,912.9	4,711.8
Distribution		5,412.0	5,176.6
Other Property, Plant and Equipment		1,046.4	981.3
Construction Work in Progress		752.5	709.2
Total Property, Plant and Equipment		19,369.7	18,620.2
Accumulated Depreciation and Amortization		5,964.9	5,688.7
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		13,404.8	12,931.5
Other Noncurrent Assets
Regulatory Assets		1,312.4	1,155.1
Securitized Assets		113.0	133.4
Employee Benefits and Pension Assets		184.8	171.7
Operating Lease Assets		70.2	73.7
Deferred Charges and Other Noncurrent Assets		166.5	187.5
TOTAL OTHER NONCURRENT ASSETS		1,846.9	1,721.4
TOTAL ASSETS		16,289.4	15,711.9
Current Liabilities
Accounts Payable		363.3	280.4
Short-term Debt:
Long-term Debt Due Within One Year		748.6	538.8
Risk Management Liabilities		7.6	15.9
Customer Deposits		85.5	80.0
Accrued Taxes		129.5	117.6
Accrued Interest		95.6	58.9
Obligations Under Operating Leases		13.9	14.6
Other Current Liabilities		165.3	118.8
TOTAL CURRENT LIABILITIES		1,735.0	1,685.9
Noncurrent Liabilities
Long-term Debt		4,910.6	5,049.5
Deferred Income Tax Liabilities, Net		2,020.8	2,011.9
Regulatory Liabilities and Deferred Investment Tax Credits		1,100.4	1,081.9
Asset Retirement Obligations		774.3	442.5
Employee Benefits and Pension Obligations		31.6	32.8
Obligations Under Operating Leases		56.9	59.8
Deferred Credits and Other Noncurrent Liabilities		49.9	70.9
TOTAL NONCURRENT LIABILITIES		8,944.5	8,749.3
TOTAL LIABILITIES		10,679.5	10,435.2
Rate Matters
Commitments and Contingencies
Equity
Common Stock		260.4	260.4
Paid-in Capital		1,939.5	1,834.5
Retained Earnings		3,415.1	3,185.5
Accumulated Other Comprehensive Income (Loss)		(5.1)	(3.7)
TOTAL EQUITY		5,609.9	5,276.7
TOTAL LIABILITIES AND EQUITY		$ 16,289.4	$ 15,711.9
Common Stock, No Par Value		$ 0	$ 0
Common Stock, Shares Authorized		30,000,000	30,000,000
Common Stock, Shares, Outstanding		13,499,500	13,499,500
Appalachian Power Co [Member] | Related Party
Current Assets
Advances to Affiliates		$ 18.9	$ 18.9
Accounts Receivable:
Affiliated Companies - Contracts with Customers		102.7	98.8
Current Liabilities
Advances from Affiliates		0.9	339.6
Accounts Payable		124.8	121.3
Indiana Michigan Power Co [Member]
Current Assets
Cash and Cash Equivalents		4.1	2.1
Accounts Receivable:
Customers		43.5	66.9
Accrued Unbilled Revenues		29.1	0.2
Miscellaneous		4.7	8.2
Total Accounts Receivable		149.9	140.3
Fuel		71.9	88.1
Materials and Supplies		210.6	208.2
Risk Management Assets		21.7	27.8
Accrued Tax Benefits		48.2	0.0
Regulatory Asset for Under-Recovered Fuel Costs		12.0	14.8
Prepayments and Other Current Assets		55.2	46.7
TOTAL CURRENT ASSETS		573.6	528.0
Property, Plant and Equipment
Generation		5,675.8	5,646.8
Transmission		1,951.3	1,906.4
Distribution		3,467.2	3,254.0
Other Property, Plant and Equipment		919.4	898.5
Construction Work in Progress		360.2	301.7
Total Property, Plant and Equipment		12,373.9	12,007.4
Accumulated Depreciation and Amortization		4,600.9	4,378.4
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,773.0	7,629.0
Other Noncurrent Assets
Regulatory Assets		572.6	406.3
Spent Nuclear Fuel and Decommissioning Trusts		4,425.8	3,860.2
Operating Lease Assets		50.2	53.8
Deferred Charges and Other Noncurrent Assets		272.7	330.7
TOTAL OTHER NONCURRENT ASSETS		5,321.3	4,651.0
TOTAL ASSETS		13,667.9	12,808.0
Current Liabilities
Accounts Payable		178.9	225.8
Short-term Debt:
Long-term Debt Due Within One Year		284.1	83.7
Customer Deposits		53.5	72.2
Accrued Taxes		96.8	104.7
Accrued Interest		38.0	41.3
Obligations Under Operating Leases		13.1	16.8
Regulatory Liability for Over-Recovered Fuel Costs		6.7	23.2
Other Current Liabilities		114.2	91.9
TOTAL CURRENT LIABILITIES		950.3	830.2
Noncurrent Liabilities
Long-term Debt		3,233.4	3,415.7
Deferred Income Tax Liabilities, Net		1,213.5	1,169.9
Regulatory Liabilities and Deferred Investment Tax Credits		2,544.4	2,052.3
Asset Retirement Obligations		2,243.2	2,104.3
Obligations Under Operating Leases		37.9	37.7
Deferred Credits and Other Noncurrent Liabilities		54.8	57.7
TOTAL NONCURRENT LIABILITIES		9,327.2	8,837.6
TOTAL LIABILITIES		10,277.5	9,667.8
Rate Matters
Commitments and Contingencies
Equity
Common Stock		56.6	56.6
Paid-in Capital		1,000.8	997.6
Retained Earnings		2,333.4	2,086.6
Accumulated Other Comprehensive Income (Loss)		(0.4)	(0.6)
TOTAL EQUITY		3,390.4	3,140.2
TOTAL LIABILITIES AND EQUITY		$ 13,667.9	$ 12,808.0
Common Stock, No Par Value		$ 0	$ 0
Common Stock, Shares Authorized		2,500,000	2,500,000
Common Stock, Shares, Outstanding		1,400,000	1,400,000
Indiana Michigan Power Co [Member] | Related Party
Accounts Receivable:
Affiliated Companies - Contracts with Customers		$ 72.6	$ 65.0
Current Liabilities
Advances from Affiliates		77.0	63.3
Accounts Payable		88.0	107.3
Indiana Michigan Power Co [Member] | DCC Fuel [Member]
Short-term Debt:
Long-term Debt Due Within One Year		93.2	81.4
Ohio Power Co [Member]
Current Assets
Cash and Cash Equivalents		9.6	6.4
Accounts Receivable:
Customers		83.0	39.2
Miscellaneous		8.7	2.3
Total Accounts Receivable		214.3	170.7
Materials and Supplies		150.1	183.9
Prepayments and Other Current Assets		26.2	16.8
TOTAL CURRENT ASSETS		497.6	377.8
Property, Plant and Equipment
Transmission		3,529.9	3,395.1
Distribution		7,143.3	6,839.4
Other Property, Plant and Equipment		1,192.6	1,125.0
Construction Work in Progress		768.7	654.0
Total Property, Plant and Equipment		12,634.5	12,013.5
Accumulated Depreciation and Amortization		2,855.5	2,713.6
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		9,779.0	9,299.9
Other Noncurrent Assets
Regulatory Assets		394.9	455.0
Operating Lease Assets		62.5	69.9
Deferred Charges and Other Noncurrent Assets		336.1	641.1
TOTAL OTHER NONCURRENT ASSETS		793.5	1,166.0
TOTAL ASSETS		11,070.1	10,843.7
Current Liabilities
Accounts Payable		312.0	320.7
Short-term Debt:
Risk Management Liabilities		6.3	6.8
Customer Deposits		68.1	62.0
Accrued Taxes		439.9	763.3
Accrued Interest		61.0	38.5
Obligations Under Operating Leases		12.6	13.5
Other Current Liabilities		145.8	144.8
TOTAL CURRENT LIABILITIES		1,201.5	1,614.3
Noncurrent Liabilities
Long-term Debt		3,715.0	3,366.8
Deferred Income Tax Liabilities, Net		1,179.5	1,152.7
Long-term Risk Management Liabilities		45.3	43.9
Regulatory Liabilities and Deferred Investment Tax Credits		997.0	1,003.6
Obligations Under Operating Leases		50.3	56.7
Deferred Credits and Other Noncurrent Liabilities		107.7	34.4
TOTAL NONCURRENT LIABILITIES		6,094.8	5,658.1
TOTAL LIABILITIES		7,296.3	7,272.4
Rate Matters
Commitments and Contingencies
Equity
Common Stock		321.2	321.2
Paid-in Capital		1,013.6	1,012.8
Retained Earnings		2,439.0	2,237.3
TOTAL EQUITY		3,773.8	3,571.3
TOTAL LIABILITIES AND EQUITY		$ 11,070.1	$ 10,843.7
Common Stock, No Par Value		$ 0	$ 0
Common Stock, Shares Authorized		40,000,000	40,000,000
Common Stock, Shares, Outstanding		27,952,473	27,952,473
Ohio Power Co [Member] | Related Party
Current Assets
Advances to Affiliates		$ 97.4	$ 0.0
Accounts Receivable:
Affiliated Companies - Contracts with Customers		122.6	129.2
Current Liabilities
Advances from Affiliates		0.0	110.5
Accounts Payable		155.8	154.2
Public Service Co Of Oklahoma [Member]
Current Assets
Cash and Cash Equivalents		4.8	2.5
Accounts Receivable:
Customers		59.5	107.6
Miscellaneous		0.4	0.8
Total Accounts Receivable		106.1	139.4
Fuel		23.2	33.7
Materials and Supplies		105.2	106.9
Risk Management Assets		28.4	19.0
Accrued Tax Benefits		17.5	31.0
Regulatory Asset for Under-Recovered Fuel Costs		27.4	118.3
Prepayments and Other Current Assets		30.3	18.7
TOTAL CURRENT ASSETS		342.9	469.5
Property, Plant and Equipment
Generation		2,760.2	2,695.5
Transmission		1,272.2	1,228.3
Distribution		3,609.2	3,450.8
Other Property, Plant and Equipment		525.7	505.9
Construction Work in Progress		404.7	313.7
Total Property, Plant and Equipment		8,572.0	8,194.2
Accumulated Depreciation and Amortization		2,189.2	2,081.9
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		6,382.8	6,112.3
Other Noncurrent Assets
Regulatory Assets		524.9	522.7
Employee Benefits and Pension Assets		71.9	68.4
Operating Lease Assets		107.6	112.8
Deferred Charges and Other Noncurrent Assets		61.5	49.2
TOTAL OTHER NONCURRENT ASSETS		765.9	753.1
TOTAL ASSETS		7,491.6	7,334.9
Current Liabilities
Accounts Payable		181.1	159.3
Short-term Debt:
Long-term Debt Due Within One Year		250.6	0.6
Risk Management Liabilities		22.3	28.9
Customer Deposits		63.9	81.4
Accrued Taxes		71.2	30.7
Accrued Interest		22.7	30.7
Obligations Under Operating Leases		10.8	10.1
Other Current Liabilities		61.2	106.2
TOTAL CURRENT LIABILITIES		840.0	559.0
Noncurrent Liabilities
Long-term Debt		2,134.8	2,384.0
Deferred Income Tax Liabilities, Net		888.6	831.2
Regulatory Liabilities and Deferred Investment Tax Credits		699.1	765.6
Asset Retirement Obligations		120.0	83.9
Obligations Under Operating Leases		102.1	106.8
Deferred Credits and Other Noncurrent Liabilities		27.8	33.8
TOTAL NONCURRENT LIABILITIES		3,972.4	4,205.3
TOTAL LIABILITIES		4,812.4	4,764.3
Rate Matters
Commitments and Contingencies
Equity
Common Stock		157.2	157.2
Paid-in Capital		1,039.5	1,039.3
Retained Earnings		1,491.3	1,374.3
Accumulated Other Comprehensive Income (Loss)		(8.8)	(0.2)
TOTAL EQUITY		2,679.2	2,570.6
TOTAL LIABILITIES AND EQUITY		$ 7,491.6	$ 7,334.9
Common Stock, Shares Authorized		11,000,000	11,000,000
Common Stock, Shares, Outstanding		9,013,000	9,013,000
Common Stock, Par or Stated Value Per Share		$ 15	$ 15
Common Stock, Shares, Issued		10,482,000	10,482,000
Public Service Co Of Oklahoma [Member] | Related Party
Accounts Receivable:
Affiliated Companies - Contracts with Customers		$ 46.2	$ 31.0
Current Liabilities
Advances from Affiliates		98.5	54.4
Accounts Payable		57.7	56.7
Southwestern Electric Power Co [Member]
Current Assets
Cash and Cash Equivalents		4.4	2.4
Accounts Receivable:
Customers		27.5	39.0
Miscellaneous		13.9	8.3
Total Accounts Receivable		96.9	94.5
Fuel		84.1	113.8
Materials and Supplies		87.0	88.4
Risk Management Assets		24.1	11.6
Accrued Tax Benefits		21.4	28.4
Regulatory Asset for Under-Recovered Fuel Costs		106.6	170.8
Prepayments and Other Current Assets		32.2	29.2
TOTAL CURRENT ASSETS		459.5	541.3
Property, Plant and Equipment
Generation		4,845.1	4,790.7
Transmission		2,754.8	2,660.6
Distribution		2,986.1	2,824.1
Other Property, Plant and Equipment		930.6	814.4
Construction Work in Progress		636.4	555.8
Total Property, Plant and Equipment		12,153.0	11,645.6
Accumulated Depreciation and Amortization		3,244.8	3,087.2
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		8,908.2	8,558.4
Other Noncurrent Assets
Regulatory Assets		1,120.3	1,131.8
Deferred Charges and Other Noncurrent Assets		340.4	326.1
TOTAL OTHER NONCURRENT ASSETS		1,460.7	1,457.9
TOTAL ASSETS		10,828.4	10,557.6
Current Liabilities
Accounts Payable		226.2	198.9
Short-term Debt:
Other Short-term Debt		4.6	4.3
Customer Deposits		75.3	72.5
Accrued Taxes		116.8	58.7
Accrued Interest		38.8	39.9
Obligations Under Operating Leases		8.8	9.0
Provision for Refund		62.5	0.7
Other Current Liabilities		127.5	168.3
TOTAL CURRENT LIABILITIES		947.2	686.9
Noncurrent Liabilities
Long-term Debt		3,648.7	3,646.9
Deferred Income Tax Liabilities, Net		1,260.4	1,179.3
Regulatory Liabilities and Deferred Investment Tax Credits		577.5	756.1
Asset Retirement Obligations		257.0	258.6
Employee Benefits and Pension Obligations		43.1	43.1
Obligations Under Operating Leases		119.5	122.5
Deferred Credits and Other Noncurrent Liabilities		178.9	93.8
TOTAL NONCURRENT LIABILITIES		6,085.1	6,100.3
TOTAL LIABILITIES		7,032.3	6,787.2
Rate Matters
Commitments and Contingencies
Equity
Common Stock		0.1	0.1
Paid-in Capital		1,491.1	1,492.2
Retained Earnings		2,308.4	2,281.3
Accumulated Other Comprehensive Income (Loss)		(3.8)	(3.4)
TOTAL COMMON SHAREHOLDER'S EQUITY		3,795.8	3,770.2
Noncontrolling Interests		0.3	0.2
TOTAL EQUITY		3,796.1	3,770.4
TOTAL LIABILITIES AND EQUITY		$ 10,828.4	$ 10,557.6
Common Stock, No Par Value		$ 18	$ 18
Common Stock, Shares Authorized		3,680	3,680
Common Stock, Shares, Outstanding		3,680	3,680
Southwestern Electric Power Co [Member] | Related Party
Current Assets
Advances to Affiliates		$ 2.8	$ 2.2
Accounts Receivable:
Affiliated Companies - Contracts with Customers		55.5	47.2
Current Liabilities
Advances from Affiliates		237.4	88.7
Accounts Payable		49.3	45.9
Southwestern Electric Power Co [Member] | Sabine Mining Co [Member]
Accounts Receivable:
Materials and Supplies		2.7	3.9
Property, Plant and Equipment
Other Property, Plant and Equipment		166.8	182.7
Accumulated Depreciation and Amortization		$ 166.8	$ 182.7

[1] Amount of securitized debt for receivables as accounted for under the “Transfers and Servicing” accounting guidance.