Consolidated Balance Sheets - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Current Assets
Cash and Cash Equivalents		$ 392.7	$ 246.8
Restricted Cash		45.6	185.8
Other Temporary Investments		200.8	202.7
Accounts Receivable:
Customers		613.6	625.3
Accrued Unbilled Revenues		248.7	222.4
Pledged Accounts Receivable - AEP Credit		1,018.4	873.9
Miscellaneous		33.1	27.2
Allowance for Uncollectible Accounts		(71.1)	(43.7)
Total Accounts Receivable		1,842.7	1,705.1
Fuel		629.4	528.5
Materials and Supplies		680.6	640.7
Risk Management Assets		94.7	172.8
Accrued Tax Benefits		185.3	85.8
Regulatory Asset for Under-Recovered Fuel Costs		90.7	92.9
Margin Deposits		62.0	60.4
Prepayments and Other Current Assets		127.0	156.3
TOTAL CURRENT ASSETS		4,351.5	4,077.8
Property, Plant and Equipment
Generation		23,133.9	22,762.4
Transmission		27,886.7	24,808.6
Distribution		23,972.1	22,443.4
Other Property, Plant and Equipment		5,294.6	4,811.5
Construction Work in Progress		4,025.7	4,319.8
Total Property, Plant and Equipment		84,313.0	79,145.7
Accumulated Depreciation and Amortization		20,411.4	19,007.6
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		63,901.6	60,138.1
Other Noncurrent Assets
Regulatory Assets		3,527.0	3,158.8
Securitized Assets		657.0	858.1
Spent Nuclear Fuel and Decommissioning Trusts		3,306.7	2,975.7
Goodwill		52.5	52.5
Long-term Risk Management Assets		242.2	266.6
Operating Lease Assets		866.4	957.4
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		3,852.3	3,407.3
TOTAL OTHER NONCURRENT ASSETS		12,504.1	11,676.4
TOTAL ASSETS		80,757.2	75,892.3
Current Liabilities
Accounts Payable		1,709.7	2,085.8
Short-term Debt:
Securitized Debt for Receivables - AEP Credit	[1]	592.0	710.0
Other Short-term Debt		1,887.3	2,128.3
Total Short-term Debt		2,479.3	2,838.3
Long-term Debt Due Within One Year		2,086.1	1,598.7
Risk Management Liabilities		78.8	114.3
Customer Deposits		335.6	366.1
Accrued Taxes		1,476.4	1,357.8
Accrued Interest		267.6	243.6
Obligations Under Operating Leases		241.3	234.1
Regulatory Liability for Over-Recovered Fuel Costs		52.6	86.6
Other Current Liabilities		1,199.3	1,373.8
TOTAL CURRENT LIABILITIES		9,926.7	10,299.1
Noncurrent Liabilities
Long-term Debt		28,986.4	25,126.8
Long-term Debt - Affiliated		0.0	0.0
Long-term Risk Management Liabilities		232.8	261.8
Deferred Income Taxes		8,240.9	7,588.2
Regulatory Liabilities and Deferred Investment Tax Credits		8,378.7	8,457.6
Asset Retirement Obligations		2,469.2	2,216.6
Employee Benefits and Pension Obligations		336.4	466.0
Obligations Under Operating Leases		638.4	734.6
Deferred Credits and Other Noncurrent Liabilities		728.0	719.8
TOTAL NONCURRENT LIABILITIES		50,010.8	45,571.4
TOTAL LIABILITIES		59,937.5	55,870.5
Rate Matters
Commitments and Contingencies
Redeemable Noncontrolling Interest		0.0	65.7
Contingently Redeemable Performance Share Awards		45.2	42.9
Total Mezzanine Equity		45.2	108.6
Equity
Common Stock		3,359.3	3,343.4
Paid-in Capital		6,588.9	6,535.6
Retained Earnings		10,687.8	9,900.9
Accumulated Other Comprehensive Income (Loss)		(85.1)	(147.7)
TOTAL COMMON SHAREHOLDERS' EQUITY		20,550.9	19,632.2
Noncontrolling Interests		223.6	281.0
TOTAL EQUITY		20,774.5	19,913.2
TOTAL LIABILITIES AND EQUITY		$ 80,757.2	$ 75,892.3
Common Stock, Par Value Per Share		$ 6.50	$ 6.50
Common Stock, Shares, Issued		516,808,354	514,373,631
Common Stock, Shares Authorized		600,000,000	600,000,000
Treasury Stock, Shares		20,204,160	20,204,160
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ 1.8	$ (21.1)
Amortization of Pension and OPEB Deferred Costs, Tax		(1.9)	(1.5)
Pension and OPEB Funded Status, Tax		16.7	15.3
Subsidiaries [Member]
Current Assets
Restricted Cash		45.6	185.8
Other Temporary Investments		194.6	187.8
Short-term Debt:
Long-term Debt Due Within One Year		198.3	565.1
Noncurrent Liabilities
Long-term Debt		950.1	907.0
AEP Texas Inc. [Member]
Current Assets
Cash and Cash Equivalents		0.1	3.1
Restricted Cash		28.7	154.7
Advances to Affiliates		7.1	207.2
Accounts Receivable:
Customers		112.8	116.0
Affiliated Companies		5.1	10.1
Accrued Unbilled Revenues		65.8	68.8
Miscellaneous		0.0	0.3
Allowance for Uncollectible Accounts		(0.1)	(1.8)
Total Accounts Receivable		183.6	193.4
Fuel		0.0	5.9
Materials and Supplies		70.0	56.7
Accrued Tax Benefits		16.8	66.1
Prepayments and Other Current Assets		4.6	5.8
TOTAL CURRENT ASSETS		310.9	692.9
Property, Plant and Equipment
Generation		0.0	351.7
Transmission		5,279.6	4,466.5
Distribution		4,580.8	4,215.2
Other Property, Plant and Equipment		868.4	805.9
Construction Work in Progress		614.1	763.9
Total Property, Plant and Equipment		11,342.9	10,603.2
Accumulated Depreciation and Amortization		1,529.3	1,758.1
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		9,813.6	8,845.1
Other Noncurrent Assets
Regulatory Assets		266.8	280.6
Securitized Assets		446.8	623.4
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		192.1	147.1
TOTAL OTHER NONCURRENT ASSETS		905.7	1,051.1
TOTAL ASSETS		11,030.2	10,589.1
Current Liabilities
Advances from Affiliates		67.1	0.0
Accounts Payable		231.7	256.8
Affiliated Companies		44.0	35.6
Short-term Debt:
Long-term Debt Due Within One Year		88.7	392.1
Accrued Taxes		78.3	84.9
Accrued Interest		43.9	35.7
Oklaunion Purchase Power Agreement		0.0	22.1
Obligations Under Operating Leases		14.5	12.0
Accumulated Provisions For Rate Refunds		20.1	64.7
Other Current Liabilities		88.5	123.3
TOTAL CURRENT LIABILITIES		676.8	1,027.2
Noncurrent Liabilities
Long-term Debt		4,731.7	4,166.3
Deferred Income Taxes		1,016.7	965.4
Regulatory Liabilities and Deferred Investment Tax Credits		1,270.8	1,316.9
Obligations Under Operating Leases		71.0	71.1
Deferred Credits and Other Noncurrent Liabilities		57.2	81.1
TOTAL NONCURRENT LIABILITIES		7,147.4	6,600.8
TOTAL LIABILITIES		7,824.2	7,628.0
Rate Matters
Commitments and Contingencies
Equity
Paid-in Capital		1,457.9	1,457.9
Retained Earnings		1,757.0	1,516.0
Accumulated Other Comprehensive Income (Loss)		(8.9)	(12.8)
TOTAL EQUITY		3,206.0	2,961.1
TOTAL LIABILITIES AND EQUITY		11,030.2	10,589.1
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		0.3	0.3
Amortization of Pension and OPEB Deferred Costs, Tax		0.0	0.0
Pension and OPEB Funded Status, Tax		0.7	0.3
AEP Texas Inc. [Member] | AEP Texas Transition and Restoration Funding [Member]
Current Assets
Restricted Cash		28.7	154.7
Other Noncurrent Assets
Securitized Assets		446.8	621.2
Short-term Debt:
Long-term Debt Due Within One Year		88.7	281.4
Accrued Interest		2.5	7.5
Noncurrent Liabilities
Long-term Debt		403.9	495.4
AEP Transmission Co [Member]
Current Assets
Cash and Cash Equivalents		0.0	0.0
Advances to Affiliates		109.1	85.4
Accounts Receivable:
Customers		22.9	19.0
Affiliated Companies		81.2	66.1
Total Accounts Receivable		104.1	85.1
Materials and Supplies		8.5	13.8
Accrued Tax Benefits		9.9	9.3
Prepayments and Other Current Assets		4.2	3.8
TOTAL CURRENT ASSETS		235.8	197.4
Property, Plant and Equipment
Transmission		9,593.5	8,137.9
Other Property, Plant and Equipment		329.5	269.6
Construction Work in Progress		1,422.6	1,485.7
Total Property, Plant and Equipment		11,345.6	9,893.2
Accumulated Depreciation and Amortization		572.8	402.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		10,772.8	9,490.9
Other Noncurrent Assets
Regulatory Assets		15.1	4.2
Deferred Property Taxes		220.1	193.5
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		2.2	4.8
TOTAL OTHER NONCURRENT ASSETS		237.4	202.5
TOTAL ASSETS		11,246.0	9,890.8
Current Liabilities
Advances from Affiliates		156.7	137.0
Accounts Payable		380.4	493.4
Affiliated Companies		97.3	71.2
Short-term Debt:
Long-term Debt Due Within One Year		50.0	0.0
Accrued Taxes		418.1	355.6
Accrued Interest		23.9	19.2
Obligations Under Operating Leases		1.2	2.1
Other Current Liabilities		9.9	14.6
TOTAL CURRENT LIABILITIES		1,137.5	1,093.1
Noncurrent Liabilities
Long-term Debt		3,898.5	3,427.3
Deferred Income Taxes		906.9	817.8
Regulatory Liabilities and Deferred Investment Tax Credits		581.8	540.9
Obligations Under Operating Leases		0.4	1.9
Deferred Credits and Other Noncurrent Liabilities		8.0	0.3
TOTAL NONCURRENT LIABILITIES		5,395.6	4,788.2
TOTAL LIABILITIES		6,533.1	5,881.3
Rate Matters
Commitments and Contingencies
Equity
Members' Capital		2,765.6	2,480.6
Retained Earnings		1,947.3	1,528.9
TOTAL MEMBER'S EQUITY		4,712.9	4,009.5
TOTAL LIABILITIES AND EQUITY		11,246.0	9,890.8
Appalachian Power Co [Member]
Current Assets
Cash and Cash Equivalents		5.8	3.3
Restricted Cash		16.9	23.5
Advances to Affiliates		21.4	22.1
Accounts Receivable:
Customers		142.8	129.0
Affiliated Companies		64.3	64.3
Accrued Unbilled Revenues		80.1	59.7
Miscellaneous		0.3	0.5
Allowance for Uncollectible Accounts		(3.1)	(2.6)
Total Accounts Receivable		284.4	250.9
Fuel		193.6	149.7
Materials and Supplies		99.6	105.2
Risk Management Assets		22.4	39.4
Regulatory Asset for Under-Recovered Fuel Costs		5.3	42.5
Prepayments and Other Current Assets		24.7	64.0
TOTAL CURRENT ASSETS		674.1	700.6
Property, Plant and Equipment
Generation		6,633.7	6,563.7
Transmission		3,900.5	3,584.1
Distribution		4,464.3	4,201.7
Other Property, Plant and Equipment		627.2	571.3
Construction Work in Progress		484.6	593.4
Total Property, Plant and Equipment		16,110.3	15,514.2
Accumulated Depreciation and Amortization		4,716.2	4,432.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		11,394.1	11,081.9
Other Noncurrent Assets
Regulatory Assets		686.3	457.2
Securitized Assets		210.1	234.7
Employee Benefits and Pension Assets		150.1	92.0
Operating Lease Assets		78.8	78.5
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		121.7	123.4
TOTAL OTHER NONCURRENT ASSETS		1,247.0	985.8
TOTAL ASSETS		13,315.2	12,768.3
Current Liabilities
Advances from Affiliates		18.6	236.7
Accounts Payable		212.0	307.8
Affiliated Companies		97.1	92.5
Short-term Debt:
Long-term Debt Due Within One Year		518.3	215.6
Risk Management Liabilities		4.6	1.9
Customer Deposits		77.8	85.8
Accrued Taxes		109.9	99.6
Obligations Under Operating Leases		14.9	15.2
Other Current Liabilities		164.5	170.9
TOTAL CURRENT LIABILITIES		1,217.7	1,226.0
Noncurrent Liabilities
Long-term Debt		4,315.8	4,148.2
Deferred Income Taxes		1,749.9	1,680.8
Regulatory Liabilities and Deferred Investment Tax Credits		1,224.7	1,268.7
Asset Retirement Obligations		304.8	102.1
Employee Benefits and Pension Obligations		44.0	50.9
Obligations Under Operating Leases		64.4	64.0
Deferred Credits and Other Noncurrent Liabilities		49.6	55.2
TOTAL NONCURRENT LIABILITIES		7,753.2	7,369.9
TOTAL LIABILITIES		8,970.9	8,595.9
Rate Matters
Commitments and Contingencies
Equity
Common Stock		260.4	260.4
Paid-in Capital		1,828.7	1,828.7
Retained Earnings		2,248.0	2,078.3
Accumulated Other Comprehensive Income (Loss)		7.2	5.0
TOTAL EQUITY		4,344.3	4,172.4
TOTAL LIABILITIES AND EQUITY		$ 13,315.2	$ 12,768.3
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
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ (0.5)	$ (0.2)
Amortization of Pension and OPEB Deferred Costs, Tax		(1.0)	(0.7)
Pension and OPEB Funded Status, Tax		2.0	3.6
Indiana Michigan Power Co [Member]
Current Assets
Cash and Cash Equivalents		3.3	2.0
Advances to Affiliates		13.3	13.2
Accounts Receivable:
Customers		44.0	53.6
Affiliated Companies		51.3	53.7
Accrued Unbilled Revenues		0.0	2.5
Miscellaneous		2.0	0.3
Allowance for Uncollectible Accounts		(0.3)	(0.6)
Total Accounts Receivable		97.0	109.5
Fuel		86.0	56.2
Materials and Supplies		175.8	171.3
Risk Management Assets		3.6	9.8
Accrued Tax Benefits		10.3	0.0
Regulatory Asset for Under-Recovered Fuel Costs		5.4	3.0
Accrued Reimbursement of Spent Nuclear Fuel Costs		14.2	24.0
Prepayments and Other Current Assets		9.9	14.0
TOTAL CURRENT ASSETS		418.8	403.0
Property, Plant and Equipment
Generation		5,264.7	5,099.7
Transmission		1,696.4	1,641.8
Distribution		2,594.6	2,437.6
Other Property, Plant and Equipment		686.7	632.6
Construction Work in Progress		362.4	382.3
Total Property, Plant and Equipment		10,604.8	10,194.0
Accumulated Depreciation and Amortization		3,552.5	3,294.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,052.3	6,899.7
Other Noncurrent Assets
Regulatory Assets		404.8	482.1
Spent Nuclear Fuel and Decommissioning Trusts		3,306.7	2,975.7
Operating Lease Assets		218.1	294.9
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		237.6	182.0
TOTAL OTHER NONCURRENT ASSETS		4,167.2	3,934.7
TOTAL ASSETS		11,638.3	11,237.4
Current Liabilities
Advances from Affiliates		103.0	114.4
Accounts Payable		153.2	169.4
Affiliated Companies		80.5	68.4
Short-term Debt:
Long-term Debt Due Within One Year		369.6	139.7
Customer Deposits		41.7	39.4
Accrued Taxes		102.5	112.4
Accrued Interest		35.6	36.2
Obligations Under Operating Leases		85.6	87.3
Regulatory Liability for Over-Recovered Fuel Costs		20.8	6.1
Other Current Liabilities		112.0	110.1
TOTAL CURRENT LIABILITIES		1,104.5	883.4
Noncurrent Liabilities
Long-term Debt		2,660.3	2,910.5
Deferred Income Taxes		1,064.4	979.7
Regulatory Liabilities and Deferred Investment Tax Credits		2,041.9	1,891.4
Asset Retirement Obligations		1,812.9	1,748.6
Obligations Under Operating Leases		135.9	211.6
Deferred Credits and Other Noncurrent Liabilities		69.2	67.8
TOTAL NONCURRENT LIABILITIES		7,784.6	7,809.6
TOTAL LIABILITIES		8,889.1	8,693.0
Rate Matters
Commitments and Contingencies
Equity
Common Stock		56.6	56.6
Paid-in Capital		980.9	980.9
Retained Earnings		1,718.7	1,518.5
Accumulated Other Comprehensive Income (Loss)		(7.0)	(11.6)
TOTAL EQUITY		2,749.2	2,544.4
TOTAL LIABILITIES AND EQUITY		$ 11,638.3	$ 11,237.4
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
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ 0.4	$ 0.4
Amortization of Pension and OPEB Deferred Costs, Tax		0.0	0.0
Pension and OPEB Funded Status, Tax		0.8	0.2
Indiana Michigan Power Co [Member] | DCC Fuel [Member]
Short-term Debt:
Long-term Debt Due Within One Year		75.7	86.1
Ohio Power Co [Member]
Current Assets
Cash and Cash Equivalents		7.4	3.7
Accounts Receivable:
Customers		50.0	53.0
Affiliated Companies		65.1	59.3
Accrued Unbilled Revenues		14.8	20.3
Miscellaneous		3.9	0.5
Allowance for Uncollectible Accounts		(0.6)	(0.7)
Total Accounts Receivable		133.2	132.4
Materials and Supplies		66.9	52.3
Renewable Energy Credits		29.5	30.9
Prepayments and Other Current Assets		19.3	19.2
TOTAL CURRENT ASSETS		256.3	238.5
Property, Plant and Equipment
Transmission		2,831.9	2,686.3
Distribution		5,708.3	5,323.5
Other Property, Plant and Equipment		899.6	765.8
Construction Work in Progress		362.3	394.4
Total Property, Plant and Equipment		9,802.1	9,170.0
Accumulated Depreciation and Amortization		2,350.0	2,263.0
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,452.1	6,907.0
Other Noncurrent Assets
Regulatory Assets		385.8	351.8
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		616.2	546.3
TOTAL OTHER NONCURRENT ASSETS		1,002.0	898.1
TOTAL ASSETS		8,710.4	8,043.6
Current Liabilities
Advances from Affiliates		259.2	131.0
Accounts Payable		181.0	233.7
Affiliated Companies		118.4	103.6
Short-term Debt:
Long-term Debt Due Within One Year		500.1	0.1
Risk Management Liabilities		8.7	7.3
Customer Deposits		55.1	70.6
Accrued Taxes		631.0	587.9
Obligations Under Operating Leases		13.1	12.5
Regulatory Liability for Over-Recovered Fuel Costs		3.9	2.8
Other Current Liabilities		139.6	151.2
TOTAL CURRENT LIABILITIES		1,906.2	1,297.9
Noncurrent Liabilities
Long-term Debt		1,930.1	2,081.9
Long-term Risk Management Liabilities		101.6	96.3
Deferred Income Taxes		955.1	849.4
Regulatory Liabilities and Deferred Investment Tax Credits		1,005.2	1,090.9
Obligations Under Operating Leases		79.5	76.0
Deferred Credits and Other Noncurrent Liabilities		40.0	42.7
TOTAL NONCURRENT LIABILITIES		4,111.5	4,237.2
TOTAL LIABILITIES		6,017.7	5,535.1
Rate Matters
Commitments and Contingencies
Equity
Common Stock		321.2	321.2
Paid-in Capital		838.8	838.8
Retained Earnings		1,532.7	1,348.5
TOTAL EQUITY		2,692.7	2,508.5
TOTAL LIABILITIES AND EQUITY		$ 8,710.4	$ 8,043.6
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
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ 0.0	$ (0.3)
Public Service Co Of Oklahoma [Member]
Current Assets
Cash and Cash Equivalents		2.6	1.5
Advances to Affiliates		0.0	38.8
Accounts Receivable:
Customers		30.8	28.9
Affiliated Companies		15.6	20.6
Miscellaneous		2.0	0.6
Allowance for Uncollectible Accounts		0.0	(0.3)
Total Accounts Receivable		48.4	49.8
Fuel		17.9	12.2
Materials and Supplies		54.0	46.8
Risk Management Assets		10.3	15.8
Accrued Tax Benefits		10.9	11.3
Regulatory Asset for Under-Recovered Fuel Costs		30.1	0.0
Prepayments and Other Current Assets		7.1	12.0
TOTAL CURRENT ASSETS		181.3	188.2
Property, Plant and Equipment
Generation		1,480.7	1,574.6
Transmission		1,069.9	948.5
Distribution		2,853.0	2,684.8
Other Property, Plant and Equipment		393.3	342.1
Construction Work in Progress		128.7	133.4
Total Property, Plant and Equipment		5,925.6	5,683.4
Accumulated Depreciation and Amortization		1,605.6	1,580.1
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		4,320.0	4,103.3
Other Noncurrent Assets
Regulatory Assets		375.0	375.2
Employee Benefits and Pension Assets		65.8	43.9
Operating Lease Assets		42.6	36.8
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		6.0	4.1
TOTAL OTHER NONCURRENT ASSETS		489.4	460.0
TOTAL ASSETS		4,990.7	4,751.5
Current Liabilities
Advances from Affiliates		155.4	0.0
Accounts Payable		107.0	134.3
Affiliated Companies		43.4	59.3
Short-term Debt:
Long-term Debt Due Within One Year		0.5	13.2
Customer Deposits		54.8	58.9
Accrued Taxes		26.8	22.9
Obligations Under Operating Leases		6.5	5.8
Regulatory Liability for Over-Recovered Fuel Costs		0.0	63.9
Other Current Liabilities		84.2	87.5
TOTAL CURRENT LIABILITIES		478.6	445.8
Noncurrent Liabilities
Long-term Debt		1,373.3	1,373.0
Deferred Income Taxes		688.5	628.3
Regulatory Liabilities and Deferred Investment Tax Credits		802.2	837.2
Asset Retirement Obligations		45.7	44.5
Obligations Under Operating Leases		36.2	31.0
Deferred Credits and Other Noncurrent Liabilities		20.6	18.4
TOTAL NONCURRENT LIABILITIES		2,966.5	2,932.4
TOTAL LIABILITIES		3,445.1	3,378.2
Rate Matters
Commitments and Contingencies
Equity
Common Stock		157.2	157.2
Paid-in Capital		414.0	364.0
Retained Earnings		974.3	851.0
Accumulated Other Comprehensive Income (Loss)		0.1	1.1
TOTAL EQUITY		1,545.6	1,373.3
TOTAL LIABILITIES AND EQUITY		$ 4,990.7	$ 4,751.5
Common Stock, Par Value Per Share		$ 15	$ 15
Common Stock, Shares, Issued		10,482,000	10,482,000
Common Stock, Shares Authorized		11,000,000	11,000,000
Common Stock, Shares Outstanding		9,013,000	9,013,000
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ (0.3)	$ (0.3)
Southwestern Electric Power Co [Member]
Current Assets
Cash and Cash Equivalents		13.2	1.6
Advances to Affiliates		2.1	2.1
Accounts Receivable:
Customers		27.1	29.0
Affiliated Companies		25.1	34.5
Miscellaneous		12.7	13.5
Allowance for Uncollectible Accounts		0.0	(1.7)
Total Accounts Receivable		64.9	75.3
Fuel		191.1	140.1
Materials and Supplies		95.8	94.0
Risk Management Assets		3.2	6.4
Accrued Tax Benefits		29.9	7.6
Regulatory Asset for Under-Recovered Fuel Costs		2.6	4.9
Prepayments and Other Current Assets		25.2	22.1
TOTAL CURRENT ASSETS		428.0	354.1
Property, Plant and Equipment
Generation		4,681.4	4,691.4
Transmission		2,165.7	2,056.5
Distribution		2,382.5	2,270.7
Other Property, Plant and Equipment		788.8	733.4
Construction Work in Progress		228.3	216.9
Total Property, Plant and Equipment		10,246.7	9,968.9
Accumulated Depreciation and Amortization		3,158.5	2,873.7
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,088.2	7,095.2
Other Noncurrent Assets
Regulatory Assets		403.1	222.4
Deferred Charges and Other Noncurrent Assets - Prepaid Benefit Costs		234.8	160.5
TOTAL OTHER NONCURRENT ASSETS		637.9	382.9
TOTAL ASSETS		8,154.1	7,832.2
Current Liabilities
Advances from Affiliates		124.6	59.9
Accounts Payable		135.9	138.0
Affiliated Companies		43.0	53.6
Short-term Debt:
Other Short-term Debt		35.0	18.3
Long-term Debt Due Within One Year		106.2	121.2
Risk Management Liabilities		0.7	1.9
Customer Deposits		61.3	65.0
Accrued Taxes		41.0	41.8
Accrued Interest		34.6	34.6
Obligations Under Operating Leases		7.9	6.5
Regulatory Liability for Over-Recovered Fuel Costs		37.6	13.6
Other Current Liabilities		173.4	133.9
TOTAL CURRENT LIABILITIES		763.6	674.7
Noncurrent Liabilities
Long-term Debt		2,530.2	2,534.4
Long-term Risk Management Liabilities		1.0	3.1
Deferred Income Taxes		1,017.6	940.9
Regulatory Liabilities and Deferred Investment Tax Credits		863.4	892.3
Asset Retirement Obligations		193.7	196.7
Employee Benefits and Pension Obligations		18.6	28.1
Obligations Under Operating Leases		44.1	34.7
Deferred Credits and Other Noncurrent Liabilities		94.2	86.2
TOTAL NONCURRENT LIABILITIES		4,762.8	4,716.4
TOTAL LIABILITIES		5,526.4	5,391.1
Rate Matters
Commitments and Contingencies
Equity
Common Stock		0.1	135.7
Paid-in Capital		812.2	676.6
Retained Earnings		1,811.9	1,629.5
Accumulated Other Comprehensive Income (Loss)		1.9	(1.3)
TOTAL COMMON SHAREHOLDERS' EQUITY		2,626.1	2,440.5
Noncontrolling Interests		1.6	0.6
TOTAL EQUITY		2,627.7	2,441.1
TOTAL LIABILITIES AND EQUITY		$ 8,154.1	$ 7,832.2
Common Stock, Par Value Per Share		$ 18	$ 18
Common Stock, Shares Authorized		3,680	3,680
Common Stock, Shares Outstanding		3,680	3,680
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		$ 0.4	$ 0.4
Amortization of Pension and OPEB Deferred Costs, Tax		(0.4)	(0.3)
Pension and OPEB Funded Status, Tax		0.9	1.0
Southwestern Electric Power Co [Member] | Sabine Mining Co [Member]
Current Assets
Cash and Cash Equivalents		10.1	0.0
Accounts Receivable:
Fuel		35.2	47.0
Materials and Supplies		23.3	23.1
Property, Plant and Equipment
Other Property, Plant and Equipment		223.7	212.3
Accumulated Depreciation and Amortization		$ 126.5	$ 107.5

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