Condensed Consolidated Balance Sheets - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Current Assets
Cash and Cash Equivalents		$ 348.8	$ 246.8
Restricted Cash		155.9	185.8
Other Temporary Investments		192.3	202.7
Accounts Receivable:
Customers		630.3	625.3
Accrued Unbilled Revenues		201.1	222.4
Pledged Accounts Receivable - AEP Credit		976.3	873.9
Miscellaneous		34.8	27.2
Allowance for Uncollectible Accounts		(51.0)	(43.7)
Total Accounts Receivable		1,791.5	1,705.1
Fuel		616.5	528.5
Materials and Supplies		663.3	640.7
Risk Management Assets		150.1	172.8
Regulatory Asset for Under-Recovered Fuel Costs		58.0	92.9
Margin Deposits		55.3	60.4
Prepayments and Other Current Assets		241.5	242.1
TOTAL CURRENT ASSETS		4,273.2	4,077.8
Property, Plant and Equipment
Generation		23,127.4	22,762.4
Transmission		25,921.8	24,808.6
Distribution		23,153.1	22,443.4
Other Property, Plant and Equipment		5,115.3	4,811.5
Construction Work in Progress		4,386.6	4,319.8
Total Property, Plant and Equipment		81,704.2	79,145.7
Accumulated Depreciation and Amortization		19,777.4	19,007.6
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		61,926.8	60,138.1
Other Noncurrent Assets
Regulatory Assets		3,431.9	3,158.8
Securitized Assets		710.9	858.1
Spent Nuclear Fuel and Decommissioning Trusts		2,957.0	2,975.7
Goodwill		52.5	52.5
Long-term Risk Management Assets		247.1	266.6
Operating Lease Assets		912.9	957.4
Deferred Charges and Other Noncurrent Assets		3,292.5	3,407.3
TOTAL OTHER NONCURRENT ASSETS		11,604.8	11,676.4
TOTAL ASSETS		77,804.8	75,892.3
Current Liabilities
Accounts Payable		1,628.0	2,085.8
Short-term Debt:
Securitized Debt for Receivables - AEP Credit	[1]	634.0	710.0
Other Short-term Debt		2,442.6	2,128.3
Total Short-term Debt		3,076.6	2,838.3
Long-term Debt Due Within One Year		2,137.7	1,598.7
Risk Management Liabilities		102.5	114.3
Customer Deposits		356.5	366.1
Accrued Taxes		1,212.5	1,357.8
Accrued Interest		261.3	243.6
Obligations Under Operating Leases		236.4	234.1
Regulatory Liability for Over-Recovered Fuel Costs		127.6	86.6
Other Current Liabilities		982.9	1,373.8
TOTAL CURRENT LIABILITIES		10,122.0	10,299.1
Noncurrent Liabilities
Long-term Debt		26,637.7	25,126.8
Affiliated Long Term Debt Noncurrent		0.0	0.0
Long-term Risk Management Liabilities		245.2	261.8
Deferred Income Taxes		7,811.2	7,588.2
Regulatory Liabilities and Deferred Investment Tax Credits		8,242.9	8,457.6
Asset Retirement Obligations		2,471.0	2,216.6
Employee Benefits and Pension Obligations		459.9	466.0
Obligations Under Operating Leases		688.5	734.6
Deferred Credits and Other Noncurrent Liabilities		715.4	719.8
TOTAL NONCURRENT LIABILITIES		47,271.8	45,571.4
TOTAL LIABILITIES		57,393.8	55,870.5
Rate Matters
Commitments and Contingencies
Redeemable Noncontrolling Interest		63.7	65.7
Contingently Reedemable Performance Share Awards		69.1	42.9
Total Mezzanine Equity		132.8	108.6
Equity
Common Stock		3,355.4	3,343.4
Paid-in Capital		6,603.0	6,535.6
Retained Earnings		10,221.9	9,900.9
Accumulated Other Comprehensive Income (Loss)		(172.9)	(147.7)
TOTAL COMMON SHAREHOLDER'S EQUITY		20,007.4	19,632.2
Noncontrolling Interests		270.8	281.0
TOTAL EQUITY		20,278.2	19,913.2
TOTAL LIABILITIES AND EQUITY		$ 77,804.8	$ 75,892.3
Common Stock, Shares Authorized		600,000,000	600,000,000
Common Stock, Par or Stated Value Per Share		$ 6.50	$ 6.50
Treasury Stock, Shares		20,204,160	20,204,160
Common Stock, Shares, Issued		516,214,732	514,373,631
Commodity [Member]
Equity
Cross Default Provisions Maximum Third Party Obligation Amount		$ 50.0	$ 50.0
Subsidiaries [Member]
Current Assets
Restricted Cash		155.9	185.8
Other Temporary Investments		176.1	187.8
Short-term Debt:
Long-term Debt Due Within One Year		277.4	565.1
Noncurrent Liabilities
Long-term Debt		994.5	907.0
AEP Texas Inc. [Member]
Current Assets
Cash and Cash Equivalents		0.1	3.1
Restricted Cash		136.6	154.7
Advances to Affiliates		7.2	207.2
Accounts Receivable:
Customers		142.7	116.0
Affiliated Companies		50.3	10.1
Accrued Unbilled Revenues		56.3	68.8
Miscellaneous		0.1	0.3
Allowance for Uncollectible Accounts		(1.9)	(1.8)
Total Accounts Receivable		247.5	193.4
Fuel		6.8	5.9
Materials and Supplies		67.2	56.7
Accrued Tax Benefits		6.5	66.1
Prepayments and Other Current Assets		3.4	5.8
TOTAL CURRENT ASSETS		475.3	692.9
Property, Plant and Equipment
Generation		351.6	351.7
Transmission		4,794.4	4,466.5
Distribution		4,392.8	4,215.2
Other Property, Plant and Equipment		853.8	805.9
Construction Work in Progress		776.1	763.9
Total Property, Plant and Equipment		11,168.7	10,603.2
Accumulated Depreciation and Amortization		1,832.7	1,758.1
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		9,336.0	8,845.1
Other Noncurrent Assets
Regulatory Assets		278.7	280.6
Securitized Assets		488.6	623.4
Deferred Charges and Other Noncurrent Assets		198.4	147.1
TOTAL OTHER NONCURRENT ASSETS		965.7	1,051.1
TOTAL ASSETS		10,777.0	10,589.1
Current Liabilities
Advances from Affiliates		320.4	0.0
Accounts Payable		261.2	256.8
Affiliated Companies		30.0	35.6
Short-term Debt:
Other Short-term Debt		2.0	0.0
Long-term Debt Due Within One Year		239.1	392.1
Risk Management Liabilities		0.1	0.0
Accrued Taxes		104.6	84.9
Accrued Interest		40.9	35.7
Oklaunion Purchase Power Agreement - Current		7.7	22.1
Obligations Under Operating Leases		13.6	12.0
Provision for Refund		47.3	64.7
Other Current Liabilities		94.9	123.3
TOTAL CURRENT LIABILITIES		1,161.8	1,027.2
Noncurrent Liabilities
Long-term Debt		4,123.5	4,166.3
Deferred Income Taxes		969.9	965.4
Regulatory Liabilities and Deferred Investment Tax Credits		1,301.5	1,316.9
Obligations Under Operating Leases		74.0	71.1
Deferred Credits and Other Noncurrent Liabilities		70.1	81.1
TOTAL NONCURRENT LIABILITIES		6,539.0	6,600.8
TOTAL LIABILITIES		7,700.8	7,628.0
Rate Matters
Commitments and Contingencies
Equity
Paid-in Capital		1,457.9	1,457.9
Retained Earnings		1,630.5	1,516.0
Accumulated Other Comprehensive Income (Loss)		(12.2)	(12.8)
TOTAL EQUITY		3,076.2	2,961.1
TOTAL LIABILITIES AND EQUITY		10,777.0	10,589.1
AEP Texas Inc. [Member] | AEP Texas Transition Funding and Restoration Funding [Member]
Current Assets
Restricted Cash		136.6	154.7
Other Noncurrent Assets
Securitized Assets		488.6	621.2
Short-term Debt:
Long-term Debt Due Within One Year		179.1	281.4
Accrued Interest		5.0	7.5
Noncurrent Liabilities
Long-term Debt		451.4	495.4
AEP Transmission Co [Member]
Current Assets
Cash and Cash Equivalents		0.0	0.0
Advances to Affiliates		121.3	85.4
Accounts Receivable:
Customers		35.1	19.0
Affiliated Companies		124.7	66.1
Total Accounts Receivable		159.8	85.1
Materials and Supplies		13.4	13.8
Accrued Tax Benefits		0.1	9.3
Prepayments and Other Current Assets		3.3	3.8
TOTAL CURRENT ASSETS		297.9	197.4
Property, Plant and Equipment
Transmission		8,642.0	8,137.9
Other Property, Plant and Equipment		289.5	269.6
Construction Work in Progress		1,613.9	1,485.7
Total Property, Plant and Equipment		10,545.4	9,893.2
Accumulated Depreciation and Amortization		488.3	402.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		10,057.1	9,490.9
Other Noncurrent Assets
Regulatory Assets		7.6	4.2
Deferred Property Taxes		109.2	193.5
Deferred Charges and Other Noncurrent Assets		3.9	4.8
TOTAL OTHER NONCURRENT ASSETS		120.7	202.5
TOTAL ASSETS		10,475.7	9,890.8
Current Liabilities
Advances from Affiliates		4.0	137.0
Accounts Payable		308.0	493.4
Affiliated Companies		61.5	71.2
Short-term Debt:
Accrued Taxes		291.7	355.6
Accrued Interest		23.9	19.2
Obligations Under Operating Leases		1.9	2.1
Other Current Liabilities		14.8	14.6
TOTAL CURRENT LIABILITIES		705.8	1,093.1
Noncurrent Liabilities
Long-term Debt		3,947.4	3,427.3
Deferred Income Taxes		847.3	817.8
Regulatory Liabilities and Deferred Investment Tax Credits		562.6	540.9
Obligations Under Operating Leases		1.2	1.9
Deferred Credits and Other Noncurrent Liabilities		30.4	0.3
TOTAL NONCURRENT LIABILITIES		5,388.9	4,788.2
TOTAL LIABILITIES		6,094.7	5,881.3
Rate Matters
Commitments and Contingencies
Equity
Paid-in Captial		2,665.6	2,480.6
Retained Earnings		1,715.4	1,528.9
TOTAL MEMBER'S EQUITY		4,381.0	4,009.5
TOTAL LIABILITIES AND EQUITY		10,475.7	9,890.8
Appalachian Power Co [Member]
Current Assets
Cash and Cash Equivalents		2.5	3.3
Restricted Cash		19.3	23.5
Advances to Affiliates		82.3	22.1
Accounts Receivable:
Customers		128.6	129.0
Affiliated Companies		117.6	64.3
Accrued Unbilled Revenues		47.5	59.7
Miscellaneous		0.2	0.5
Allowance for Uncollectible Accounts		(4.1)	(2.6)
Total Accounts Receivable		289.8	250.9
Fuel		157.8	149.7
Materials and Supplies		99.3	105.2
Risk Management Assets		37.7	39.4
Regulatory Asset for Under-Recovered Fuel Costs		11.6	42.5
Prepayments and Other Current Assets		38.0	64.0
TOTAL CURRENT ASSETS		738.3	700.6
Property, Plant and Equipment
Generation		6,607.4	6,563.7
Transmission		3,720.8	3,584.1
Distribution		4,311.5	4,201.7
Other Property, Plant and Equipment		602.6	571.3
Construction Work in Progress		561.0	593.4
Total Property, Plant and Equipment		15,803.3	15,514.2
Accumulated Depreciation and Amortization		4,572.8	4,432.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		11,230.5	11,081.9
Other Noncurrent Assets
Regulatory Assets		656.6	457.2
Securitized Assets		222.3	234.7
Long-term Risk Management Assets		0.4	0.1
Operating Lease Assets		80.5	78.5
Deferred Charges and Other Noncurrent Assets		213.6	215.3
TOTAL OTHER NONCURRENT ASSETS		1,173.4	985.8
TOTAL ASSETS		13,142.2	12,768.3
Current Liabilities
Advances from Affiliates		0.0	236.7
Accounts Payable		213.5	307.8
Affiliated Companies		71.6	92.5
Short-term Debt:
Long-term Debt Due Within One Year		583.3	215.6
Risk Management Liabilities		7.6	1.9
Customer Deposits		82.4	85.8
Accrued Taxes		101.3	99.6
Obligations Under Operating Leases		14.5	15.2
Other Current Liabilities		144.2	170.9
TOTAL CURRENT LIABILITIES		1,218.4	1,226.0
Noncurrent Liabilities
Long-term Debt		4,262.0	4,148.2
Long-term Risk Management Liabilities		0.2	0.0
Deferred Income Taxes		1,693.0	1,680.8
Regulatory Liabilities and Deferred Investment Tax Credits		1,232.3	1,268.7
Asset Retirement Obligations		302.1	102.1
Employee Benefits and Pension Obligations		46.5	50.9
Obligations Under Operating Leases		66.5	64.0
Deferred Credits and Other Noncurrent Liabilities		59.1	55.2
TOTAL NONCURRENT LIABILITIES		7,661.7	7,369.9
TOTAL LIABILITIES		8,880.1	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		2,174.9	2,078.3
Accumulated Other Comprehensive Income (Loss)		(1.9)	5.0
TOTAL EQUITY		4,262.1	4,172.4
TOTAL LIABILITIES AND EQUITY		$ 13,142.2	$ 12,768.3
Common Stock, Shares Authorized		30,000,000	30,000,000
Common Stock, Shares, Outstanding		13,499,500	13,499,500
Common Stock, No Par Value		$ 0	$ 0
Indiana Michigan Power Co [Member]
Current Assets
Cash and Cash Equivalents		$ 2.0	$ 2.0
Advances to Affiliates		13.3	13.2
Accounts Receivable:
Customers		44.3	53.6
Affiliated Companies		79.5	53.7
Accrued Unbilled Revenues		4.9	2.5
Miscellaneous		0.4	0.3
Allowance for Uncollectible Accounts		(0.5)	(0.6)
Total Accounts Receivable		128.6	109.5
Fuel		78.0	56.2
Materials and Supplies		176.1	171.3
Risk Management Assets		6.4	9.8
Regulatory Asset for Under-Recovered Fuel Costs		2.6	3.0
Accrued Reimbursement of Spent Nuclear Fuel Costs		13.9	24.0
Prepayments and Other Current Assets		14.1	14.0
TOTAL CURRENT ASSETS		435.0	403.0
Property, Plant and Equipment
Generation		5,242.0	5,099.7
Transmission		1,657.6	1,641.8
Distribution		2,511.5	2,437.6
Other Property, Plant and Equipment		672.0	632.6
Construction Work in Progress		325.4	382.3
Total Property, Plant and Equipment		10,408.5	10,194.0
Accumulated Depreciation and Amortization		3,416.2	3,294.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		6,992.3	6,899.7
Other Noncurrent Assets
Regulatory Assets		437.4	482.1
Spent Nuclear Fuel and Decommissioning Trusts		2,957.0	2,975.7
Long-term Risk Management Assets		0.3	0.1
Operating Lease Assets		253.1	294.9
Deferred Charges and Other Noncurrent Assets		173.5	181.9
TOTAL OTHER NONCURRENT ASSETS		3,821.3	3,934.7
TOTAL ASSETS		11,248.6	11,237.4
Current Liabilities
Advances from Affiliates		194.1	114.4
Accounts Payable		151.9	169.4
Affiliated Companies		63.6	68.4
Short-term Debt:
Long-term Debt Due Within One Year		360.8	139.7
Risk Management Liabilities		0.3	0.5
Customer Deposits		39.3	39.4
Accrued Taxes		115.1	112.4
Accrued Interest		35.9	36.2
Obligations Under Operating Leases		85.6	87.3
Regulatory Liability for Over-Recovered Fuel Costs		32.4	6.1
Other Current Liabilities		76.5	109.6
TOTAL CURRENT LIABILITIES		1,155.5	883.4
Noncurrent Liabilities
Long-term Debt		2,644.0	2,910.5
Long-term Risk Management Liabilities		0.2	0.0
Deferred Income Taxes		958.3	979.7
Regulatory Liabilities and Deferred Investment Tax Credits		1,811.8	1,891.4
Asset Retirement Obligations		1,783.6	1,748.6
Obligations Under Operating Leases		171.3	211.6
Deferred Credits and Other Noncurrent Liabilities		64.7	67.8
TOTAL NONCURRENT LIABILITIES		7,433.9	7,809.6
TOTAL LIABILITIES		8,589.4	8,693.0
Rate Matters
Commitments and Contingencies
Equity
Common Stock		56.6	56.6
Paid-in Capital		980.9	980.9
Retained Earnings		1,632.5	1,518.5
Accumulated Other Comprehensive Income (Loss)		(10.8)	(11.6)
TOTAL EQUITY		2,659.2	2,544.4
TOTAL LIABILITIES AND EQUITY		$ 11,248.6	$ 11,237.4
Common Stock, Shares Authorized		2,500,000	2,500,000
Common Stock, Shares, Outstanding		1,400,000	1,400,000
Common Stock, No Par Value		$ 0	$ 0
Indiana Michigan Power Co [Member] | DCC Fuel [Member]
Short-term Debt:
Long-term Debt Due Within One Year		$ 67.0	$ 86.1
Ohio Power Co [Member]
Current Assets
Cash and Cash Equivalents		3.3	3.7
Accounts Receivable:
Customers		41.5	53.0
Affiliated Companies		82.0	59.3
Accrued Unbilled Revenues		23.0	20.3
Miscellaneous		3.7	0.5
Allowance for Uncollectible Accounts		(1.2)	(0.7)
Total Accounts Receivable		149.0	132.4
Materials and Supplies		62.2	52.3
Renewable Energy Credits		28.0	30.9
Accrued Tax Benefits		13.3	11.5
Prepayments and Other Current Assets		6.0	7.7
TOTAL CURRENT ASSETS		261.8	238.5
Property, Plant and Equipment
Transmission		2,725.7	2,686.3
Distribution		5,475.4	5,323.5
Other Property, Plant and Equipment		834.3	765.8
Construction Work in Progress		446.0	394.4
Total Property, Plant and Equipment		9,481.4	9,170.0
Accumulated Depreciation and Amortization		2,315.7	2,263.0
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,165.7	6,907.0
Other Noncurrent Assets
Regulatory Assets		418.9	351.8
Deferred Charges and Other Noncurrent Assets		424.2	546.3
TOTAL OTHER NONCURRENT ASSETS		843.1	898.1
TOTAL ASSETS		8,270.6	8,043.6
Current Liabilities
Advances from Affiliates		143.1	131.0
Accounts Payable		180.5	233.7
Affiliated Companies		90.1	103.6
Short-term Debt:
Long-term Debt Due Within One Year		0.1	0.1
Risk Management Liabilities		8.6	7.3
Customer Deposits		65.4	70.6
Accrued Taxes		438.9	587.9
Obligations Under Operating Leases		12.3	12.5
Other Current Liabilities		131.4	151.2
TOTAL CURRENT LIABILITIES		1,070.4	1,297.9
Noncurrent Liabilities
Long-term Debt		2,429.4	2,081.9
Long-term Risk Management Liabilities		108.9	96.3
Deferred Income Taxes		887.8	849.4
Regulatory Liabilities and Deferred Investment Tax Credits		1,026.7	1,090.9
Obligations Under Operating Leases		76.8	76.0
Deferred Credits and Other Noncurrent Liabilities		49.6	42.7
TOTAL NONCURRENT LIABILITIES		4,579.2	4,237.2
TOTAL LIABILITIES		5,649.6	5,535.1
Rate Matters
Commitments and Contingencies
Equity
Common Stock		321.2	321.2
Paid-in Capital		838.8	838.8
Retained Earnings		1,461.0	1,348.5
TOTAL EQUITY		2,621.0	2,508.5
TOTAL LIABILITIES AND EQUITY		$ 8,270.6	$ 8,043.6
Common Stock, Shares Authorized		40,000,000	40,000,000
Common Stock, Shares, Outstanding		27,952,473	27,952,473
Common Stock, No Par Value		$ 0	$ 0
Public Service Co Of Oklahoma [Member]
Current Assets
Cash and Cash Equivalents		$ 1.4	$ 1.5
Advances to Affiliates		0.0	38.8
Accounts Receivable:
Customers		30.6	28.9
Affiliated Companies		41.0	20.6
Miscellaneous		2.5	0.6
Allowance for Uncollectible Accounts		0.0	(0.3)
Total Accounts Receivable		74.1	49.8
Fuel		26.2	12.2
Materials and Supplies		50.9	46.8
Risk Management Assets		23.8	15.8
Accrued Tax Benefits		1.0	11.3
Prepayments and Other Current Assets		10.0	12.0
TOTAL CURRENT ASSETS		187.4	188.2
Property, Plant and Equipment
Generation		1,573.0	1,574.6
Transmission		976.9	948.5
Distribution		2,769.9	2,684.8
Other Property, Plant and Equipment		370.2	342.1
Construction Work in Progress		135.3	133.4
Total Property, Plant and Equipment		5,825.3	5,683.4
Accumulated Depreciation and Amortization		1,650.2	1,580.1
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		4,175.1	4,103.3
Other Noncurrent Assets
Regulatory Assets		385.1	375.2
Employee Benefits and Pension Assets		44.5	43.9
Operating Lease Assets		40.4	36.8
Deferred Charges and Other Noncurrent Assets		26.3	4.1
TOTAL OTHER NONCURRENT ASSETS		496.3	460.0
TOTAL ASSETS		4,858.8	4,751.5
Current Liabilities
Advances from Affiliates		106.9	0.0
Accounts Payable		119.6	134.3
Affiliated Companies		55.4	59.3
Short-term Debt:
Long-term Debt Due Within One Year		250.5	13.2
Risk Management Liabilities		0.1	0.0
Customer Deposits		58.4	58.9
Accrued Taxes		51.1	22.9
Obligations Under Operating Leases		6.2	5.8
Regulatory Liability for Over-Recovered Fuel Costs		46.8	63.9
Other Current Liabilities		72.9	87.5
TOTAL CURRENT LIABILITIES		767.9	445.8
Noncurrent Liabilities
Long-term Debt		1,123.2	1,373.0
Deferred Income Taxes		634.8	628.3
Regulatory Liabilities and Deferred Investment Tax Credits		822.5	837.2
Asset Retirement Obligations		46.1	44.5
Obligations Under Operating Leases		34.3	31.0
Deferred Credits and Other Noncurrent Liabilities		20.8	18.4
TOTAL NONCURRENT LIABILITIES		2,681.7	2,932.4
TOTAL LIABILITIES		3,449.6	3,378.2
Rate Matters
Commitments and Contingencies
Equity
Common Stock		157.2	157.2
Paid-in Capital		364.0	364.0
Retained Earnings		887.4	851.0
Accumulated Other Comprehensive Income (Loss)		0.6	1.1
TOTAL EQUITY		1,409.2	1,373.3
TOTAL LIABILITIES AND EQUITY		$ 4,858.8	$ 4,751.5
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
Southwestern Electric Power Co [Member]
Current Assets
Cash and Cash Equivalents		$ 1.8	$ 1.6
Advances to Affiliates		2.1	2.1
Accounts Receivable:
Customers		24.0	29.0
Affiliated Companies		41.7	34.5
Miscellaneous		15.5	13.5
Allowance for Uncollectible Accounts		(0.1)	(1.7)
Total Accounts Receivable		81.1	75.3
Fuel		197.6	140.1
Materials and Supplies		97.9	94.0
Risk Management Assets		6.9	6.4
Regulatory Asset for Under-Recovered Fuel Costs		0.0	4.9
Prepayments and Other Current Assets		25.5	29.7
TOTAL CURRENT ASSETS		412.9	354.1
Property, Plant and Equipment
Generation		4,691.5	4,691.4
Transmission		2,102.5	2,056.5
Distribution		2,334.8	2,270.7
Other Property, Plant and Equipment		787.4	733.4
Construction Work in Progress		209.2	216.9
Total Property, Plant and Equipment		10,125.4	9,968.9
Accumulated Depreciation and Amortization		3,022.2	2,873.7
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,103.2	7,095.2
Other Noncurrent Assets
Regulatory Assets		254.8	222.4
Deferred Charges and Other Noncurrent Assets		268.7	160.5
TOTAL OTHER NONCURRENT ASSETS		523.5	382.9
TOTAL ASSETS		8,039.6	7,832.2
Current Liabilities
Advances from Affiliates		130.4	59.9
Accounts Payable		106.3	138.0
Affiliated Companies		56.3	53.6
Short-term Debt:
Other Short-term Debt		37.0	18.3
Long-term Debt Due Within One Year		6.2	121.2
Risk Management Liabilities		1.6	1.9
Customer Deposits		64.8	65.0
Accrued Taxes		90.0	41.8
Accrued Interest		33.6	34.6
Obligations Under Operating Leases		7.9	6.5
Regulatory Liability for Over-Recovered Fuel Costs		39.8	13.6
Other Current Liabilities		95.2	120.3
TOTAL CURRENT LIABILITIES		669.1	674.7
Noncurrent Liabilities
Long-term Debt		2,632.2	2,534.4
Long-term Risk Management Liabilities		2.1	3.1
Deferred Income Taxes		945.7	940.9
Regulatory Liabilities and Deferred Investment Tax Credits		884.7	892.3
Asset Retirement Obligations		220.9	196.7
Obligations Under Operating Leases		44.5	34.7
Deferred Credits and Other Noncurrent Liabilities		124.3	114.3
TOTAL NONCURRENT LIABILITIES		4,854.4	4,716.4
TOTAL LIABILITIES		5,523.5	5,391.1
Rate Matters
Commitments and Contingencies
Equity
Common Stock		135.7	135.7
Paid-in Capital		676.6	676.6
Retained Earnings		1,705.0	1,629.5
Accumulated Other Comprehensive Income (Loss)		(1.3)	(1.3)
TOTAL COMMON SHAREHOLDER'S EQUITY		2,516.0	2,440.5
Noncontrolling Interests		0.1	0.6
TOTAL EQUITY		2,516.1	2,441.1
TOTAL LIABILITIES AND EQUITY		$ 8,039.6	$ 7,832.2
Common Stock, Shares Authorized		7,600,000	7,600,000
Common Stock, Shares, Outstanding		7,536,640	7,536,640
Common Stock, Par or Stated Value Per Share		$ 18	$ 18
Southwestern Electric Power Co [Member] | Sabine Mining Co [Member]
Accounts Receivable:
Fuel		$ 54.2	$ 47.0
Materials and Supplies		24.0	23.1
Property, Plant and Equipment
Other Property, Plant and Equipment		218.6	212.3
Accumulated Depreciation and Amortization		$ 115.2	$ 107.5

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