Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Current Assets
Cash and Cash Equivalents		$ 330.1	$ 509.4
Restricted Cash		48.9	47.1
Other Temporary Investments		214.3	187.6
Accounts Receivable:
Customers		1,029.9	1,145.1
Accrued Unbilled Revenues		179.5	322.9
Pledged Accounts Receivable - AEP Credit		1,249.4	1,207.4
Miscellaneous		48.7	49.7
Allowance for Uncollectible Accounts		(60.1)	(57.1)
Total Accounts Receivable		2,447.4	2,668.0
Fuel		853.7	435.1
Materials and Supplies		1,025.8	915.1
Risk Management Assets		217.5	348.8
Accrued Tax Benefits		156.2	99.4
Regulatory Asset for Under-Recovered Fuel Costs		514.0	1,310.0
Prepayments and Other Current Assets		274.2	255.0
TOTAL CURRENT ASSETS		6,082.1	6,775.5
Property, Plant and Equipment
Generation		24,329.5	25,834.2
Transmission		35,934.1	33,266.9
Distribution		28,989.9	27,138.8
Other Property, Plant and Equipment		6,484.9	5,971.8
Construction Work in Progress		5,508.0	4,809.7
Total Property, Plant and Equipment		101,246.4	97,021.4
Accumulated Depreciation and Amortization		24,553.0	23,682.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		76,693.4	73,339.1
Other Noncurrent Assets
Regulatory Assets		5,092.4	4,762.0
Securitized Assets		336.3	446.0
Spent Nuclear Fuel and Decommissioning Trusts		3,860.2	3,341.2
Goodwill		52.5	52.5
Derivative Asset, Noncurrent		321.2	284.1
Operating Lease Assets		620.2	645.5
Deferred Charges and Other Noncurrent Assets		3,625.7	3,757.4
TOTAL OTHER NONCURRENT ASSETS		13,908.5	13,288.7
TOTAL ASSETS		96,684.0	93,403.3
Current Liabilities
Accounts Payable		2,032.5	2,670.8
Short-term Debt:
Securitized Debt for Receivables - AEP Credit	[1]	888.0	750.0
Other Short-term Debt		1,942.2	3,362.2
Total Short-term Debt		2,830.2	4,112.2
Long-term Debt Due Within One Year		2,490.5	2,486.4
Risk Management Liabilities		229.6	145.2
Customer Deposits		423.7	408.8
Accrued Taxes		1,800.1	1,714.6
Accrued Interest		410.2	336.5
Obligations Under Operating Leases		115.7	113.6
Regulatory Liability for Over-Recovered Fuel Costs		26.5	1.4
Other Current Liabilities		1,251.1	1,278.2
TOTAL CURRENT LIABILITIES		11,583.6	13,266.3
Noncurrent Liabilities
Long-term Debt		37,652.7	34,314.6
Deferred Income Tax Liabilities, Net		9,415.7	8,896.9
Long-term Risk Management Liabilities		241.8	345.2
Regulatory Liabilities and Deferred Investment Tax Credits		8,182.4	8,115.6
Asset Retirement Obligations		2,972.5	2,879.3
Employee Benefits and Pension Obligations		241.7	257.3
Obligations Under Operating Leases		519.4	552.5
Deferred Credits and Other Noncurrent Liabilities		545.8	607.3
TOTAL NONCURRENT LIABILITIES		59,772.0	55,968.7
TOTAL LIABILITIES		71,355.6	69,235.0
Rate Matters
Commitments and Contingencies
Contingently Redeemable Performance Share Awards		42.5	45.9
Total Mezzanine Equity		42.5	45.9
Equity
Common Stock		3,427.9	3,413.1
Paid-in Capital		9,073.9	8,051.0
Retained Earnings		12,800.4	12,345.6
Accumulated Other Comprehensive Income (Loss)		(55.5)	83.7
TOTAL COMMON SHAREHOLDERS' EQUITY		25,246.7	23,893.4
Noncontrolling Interests		39.2	229.0
TOTAL EQUITY		25,285.9	24,122.4
TOTAL LIABILITIES AND EQUITY		$ 96,684.0	$ 93,403.3
Common Stock, Par Value Per Share		$ 6.50	$ 6.50
Common Stock, Shares, Issued		527,369,157	525,099,321
Common Stock, Shares Authorized		600,000,000	600,000,000
Treasury Stock, Common, Shares		1,184,572	11,233,240
Corporate and Other [Member]
Other Noncurrent Assets
Goodwill		$ 37.1	$ 37.1
Subsidiaries [Member]
Current Assets
Restricted Cash		48.9	47.1
Other Temporary Investments		205.0	182.9
Short-term Debt:
Long-term Debt Due Within One Year		207.2	218.2
Noncurrent Liabilities
Long-term Debt		556.3	755.3
AEP Texas Inc. [Member]
Current Assets
Cash and Cash Equivalents		0.1	0.1
Restricted Cash		34.0	32.7
Accounts Receivable:
Customers		176.5	150.9
Accrued Unbilled Revenues		82.3	91.4
Miscellaneous		0.8	0.2
Allowance for Uncollectible Accounts		(4.9)	(4.2)
Total Accounts Receivable		278.5	250.2
Materials and Supplies		190.4	138.8
Prepayments and Other Current Assets		10.0	18.2
TOTAL CURRENT ASSETS		520.1	446.9
Property, Plant and Equipment
Transmission		6,812.6	6,301.5
Distribution		5,798.8	5,312.8
Other Property, Plant and Equipment		1,145.9	1,022.8
Construction Work in Progress		904.6	805.2
Total Property, Plant and Equipment		14,661.9	13,442.3
Accumulated Depreciation and Amortization		1,887.9	1,760.7
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		12,774.0	11,681.6
Other Noncurrent Assets
Regulatory Assets		315.3	298.3
Securitized Assets		202.9	286.4
Deferred Charges and Other Noncurrent Assets		178.4	179.0
TOTAL OTHER NONCURRENT ASSETS		696.6	763.7
TOTAL ASSETS		13,990.7	12,892.2
Current Liabilities
Accounts Payable		192.3	331.0
Short-term Debt:
Long-term Debt Due Within One Year		96.0	278.5
Accrued Taxes		99.1	95.5
Accrued Interest		49.2	48.3
Obligations Under Operating Leases		28.7	28.6
Other Current Liabilities		152.7	130.7
TOTAL CURRENT LIABILITIES		749.4	1,043.8
Noncurrent Liabilities
Long-term Debt		5,793.8	5,379.3
Deferred Income Tax Liabilities, Net		1,227.8	1,144.2
Regulatory Liabilities and Deferred Investment Tax Credits		1,261.4	1,259.6
Obligations Under Operating Leases		50.9	67.8
Deferred Credits and Other Noncurrent Liabilities		111.3	93.2
TOTAL NONCURRENT LIABILITIES		8,445.2	7,944.1
TOTAL LIABILITIES		9,194.6	8,987.9
Rate Matters
Commitments and Contingencies
Equity
Paid-in Capital		2,079.6	1,558.2
Retained Earnings		2,725.1	2,354.7
Accumulated Other Comprehensive Income (Loss)		(8.6)	(8.6)
TOTAL EQUITY		4,796.1	3,904.3
TOTAL LIABILITIES AND EQUITY		13,990.7	12,892.2
AEP Texas Inc. [Member] | Related Party
Current Assets
Advances to Affiliates		7.1	6.9
Accounts Receivable:
Affiliated Companies		23.8	11.9
Current Liabilities
Advances From Affiliates		103.7	96.5
Accounts Payable		27.7	34.7
AEP Texas Inc. [Member] | AEP Texas Transition and Restoration Funding [Member]
Current Assets
Restricted Cash		34.0	32.7
Other Noncurrent Assets
Securitized Assets		202.9	286.4
Short-term Debt:
Long-term Debt Due Within One Year		95.9	93.5
Accrued Interest		2.0	2.2
Noncurrent Liabilities
Long-term Debt		125.9	221.0
AEP Transmission Co [Member]
Current Assets
Cash and Cash Equivalents		0.0	0.0
Accounts Receivable:
Customers		82.2	46.9
Total Accounts Receivable		207.7	166.4
Materials and Supplies		0.0	10.7
Prepayments and Other Current Assets		4.0	7.2
TOTAL CURRENT ASSETS		278.8	188.7
Property, Plant and Equipment
Transmission		13,723.9	12,335.4
Other Property, Plant and Equipment		501.4	476.8
Construction Work in Progress		1,563.7	1,554.7
Total Property, Plant and Equipment		15,789.0	14,366.9
Accumulated Depreciation and Amortization		1,291.3	1,027.0
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		14,497.7	13,339.9
Other Noncurrent Assets
Regulatory Assets		3.1	7.2
Deferred Property Taxes		286.4	266.6
Deferred Charges and Other Noncurrent Assets		6.5	11.8
TOTAL OTHER NONCURRENT ASSETS		296.0	285.6
TOTAL ASSETS		15,072.5	13,814.2
Current Liabilities
Accounts Payable		274.7	427.8
Short-term Debt:
Long-term Debt Due Within One Year		95.0	60.0
Accrued Taxes		568.6	529.8
Accrued Interest		39.6	28.8
Obligations Under Operating Leases		1.3	1.3
Other Current Liabilities		24.7	8.3
TOTAL CURRENT LIABILITIES		1,286.1	1,368.0
Noncurrent Liabilities
Long-term Debt		5,319.4	4,722.8
Deferred Income Tax Liabilities, Net		1,147.7	1,056.5
Regulatory Liabilities and Deferred Investment Tax Credits		783.7	723.3
Obligations Under Operating Leases		1.4	1.5
Deferred Credits and Other Noncurrent Liabilities		200.9	69.1
TOTAL NONCURRENT LIABILITIES		7,453.1	6,573.2
TOTAL LIABILITIES		8,739.2	7,941.2
Rate Matters
Commitments and Contingencies
Equity
Members' Capital		3,043.4	3,022.3
Retained Earnings		3,289.9	2,850.7
TOTAL MEMBER'S EQUITY		6,333.3	5,873.0
TOTAL LIABILITIES AND EQUITY		15,072.5	13,814.2
AEP Transmission Co [Member] | Related Party
Current Assets
Advances to Affiliates		67.1	4.4
Accounts Receivable:
Affiliated Companies		125.5	119.5
Current Liabilities
Advances From Affiliates		174.3	229.3
Accounts Payable		107.9	82.7
Appalachian Power Co [Member]
Current Assets
Cash and Cash Equivalents		5.0	7.5
Restricted Cash		14.9	14.4
Accounts Receivable:
Customers		170.3	168.9
Accrued Unbilled Revenues		70.8	91.3
Miscellaneous		0.6	0.3
Allowance for Uncollectible Accounts		(2.0)	(1.7)
Total Accounts Receivable		338.5	352.8
Fuel		315.0	158.9
Materials and Supplies		148.4	130.6
Risk Management Assets		22.4	69.1
Regulatory Asset for Under-Recovered Fuel Costs		155.4	473.1
Prepayments and Other Current Assets		40.5	33.4
TOTAL CURRENT ASSETS		1,059.0	1,259.6
Property, Plant and Equipment
Generation		7,041.3	6,776.8
Transmission		4,711.8	4,482.8
Distribution		5,176.6	4,933.0
Other Property, Plant and Equipment		981.3	883.3
Construction Work in Progress		709.2	705.3
Total Property, Plant and Equipment		18,620.2	17,781.2
Accumulated Depreciation and Amortization		5,688.7	5,402.0
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		12,931.5	12,379.2
Other Noncurrent Assets
Regulatory Assets		1,155.1	1,058.6
Securitized Assets		133.4	159.6
Employee Benefits and Pension Assets		171.7	152.9
Operating Lease Assets		73.7	73.6
Deferred Charges and Other Noncurrent Assets		187.5	138.7
TOTAL OTHER NONCURRENT ASSETS		1,721.4	1,583.4
TOTAL ASSETS		15,711.9	15,222.2
Current Liabilities
Accounts Payable		280.4	451.2
Short-term Debt:
Long-term Debt Due Within One Year		538.8	251.8
Customer Deposits		80.0	75.1
Accrued Taxes		117.6	101.0
Obligations Under Operating Leases		14.6	15.0
Other Current Liabilities		193.6	171.2
TOTAL CURRENT LIABILITIES		1,685.9	1,390.2
Noncurrent Liabilities
Long-term Debt		5,049.5	5,158.7
Deferred Income Tax Liabilities, Net		2,011.9	1,992.2
Regulatory Liabilities and Deferred Investment Tax Credits		1,081.9	1,143.6
Asset Retirement Obligations		442.5	419.2
Employee Benefits and Pension Obligations		32.8	34.2
Obligations Under Operating Leases		59.8	59.1
Deferred Credits and Other Noncurrent Liabilities		70.9	49.6
TOTAL NONCURRENT LIABILITIES		8,749.3	8,856.6
TOTAL LIABILITIES		10,435.2	10,246.8
Rate Matters
Commitments and Contingencies
Equity
Common Stock		260.4	260.4
Paid-in Capital		1,834.5	1,828.7
Retained Earnings		3,185.5	2,891.1
Accumulated Other Comprehensive Income (Loss)		(3.7)	(4.8)
TOTAL EQUITY		5,276.7	4,975.4
TOTAL LIABILITIES AND EQUITY		$ 15,711.9	$ 15,222.2
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	$ 19.8
Accounts Receivable:
Affiliated Companies		98.8	94.0
Current Liabilities
Advances From Affiliates		339.6	182.2
Accounts Payable		121.3	142.7
Indiana Michigan Power Co [Member]
Current Assets
Cash and Cash Equivalents		2.1	4.2
Accounts Receivable:
Customers		66.9	96.6
Accrued Unbilled Revenues		0.2	0.6
Miscellaneous		8.2	4.7
Allowance for Uncollectible Accounts		0.0	(0.1)
Total Accounts Receivable		140.3	205.8
Fuel		88.1	46.5
Materials and Supplies		208.2	188.1
Risk Management Assets		27.8	15.2
Regulatory Asset for Under-Recovered Fuel Costs		14.8	47.1
Prepayments and Other Current Assets		46.7	41.9
TOTAL CURRENT ASSETS		528.0	571.8
Property, Plant and Equipment
Generation		5,646.8	5,585.1
Transmission		1,906.4	1,842.2
Distribution		3,254.0	3,024.7
Other Property, Plant and Equipment		898.5	839.3
Construction Work in Progress		301.7	253.0
Total Property, Plant and Equipment		12,007.4	11,544.3
Accumulated Depreciation and Amortization		4,378.4	4,132.8
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		7,629.0	7,411.5
Other Noncurrent Assets
Regulatory Assets		406.3	459.6
Spent Nuclear Fuel and Decommissioning Trusts		3,860.2	3,341.2
Operating Lease Assets		53.8	64.3
Deferred Charges and Other Noncurrent Assets		330.7	270.5
TOTAL OTHER NONCURRENT ASSETS		4,651.0	4,135.6
TOTAL ASSETS		12,808.0	12,118.9
Current Liabilities
Accounts Payable		225.8	173.4
Short-term Debt:
Long-term Debt Due Within One Year		83.7	341.8
Customer Deposits		72.2	48.6
Accrued Taxes		104.7	103.2
Accrued Interest		41.3	36.9
Obligations Under Operating Leases		16.8	16.0
Regulatory Liability for Over-Recovered Fuel Costs		23.2	0.0
Other Current Liabilities		91.9	105.8
TOTAL CURRENT LIABILITIES		830.2	1,197.1
Noncurrent Liabilities
Long-term Debt		3,415.7	2,919.0
Deferred Income Tax Liabilities, Net		1,169.9	1,157.0
Regulatory Liabilities and Deferred Investment Tax Credits		2,052.3	1,702.2
Asset Retirement Obligations		2,104.3	2,027.6
Obligations Under Operating Leases		37.7	48.9
Deferred Credits and Other Noncurrent Liabilities		57.7	58.8
TOTAL NONCURRENT LIABILITIES		8,837.6	7,913.5
TOTAL LIABILITIES		9,667.8	9,110.6
Rate Matters
Commitments and Contingencies
Equity
Common Stock		56.6	56.6
Paid-in Capital		997.6	988.8
Retained Earnings		2,086.6	1,963.2
Accumulated Other Comprehensive Income (Loss)		(0.6)	(0.3)
TOTAL EQUITY		3,140.2	3,008.3
TOTAL LIABILITIES AND EQUITY		$ 12,808.0	$ 12,118.9
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
Current Assets
Advances to Affiliates		$ 0.0	$ 23.0
Accounts Receivable:
Affiliated Companies		65.0	104.0
Current Liabilities
Advances From Affiliates		63.3	249.9
Accounts Payable		107.3	121.5
Indiana Michigan Power Co [Member] | DCC Fuel [Member]
Short-term Debt:
Long-term Debt Due Within One Year		81.4	89.6
Ohio Power Co [Member]
Current Assets
Cash and Cash Equivalents		6.4	9.6
Accounts Receivable:
Customers		39.2	119.9
Accrued Unbilled Revenues		0.0	17.8
Miscellaneous		2.3	0.1
Allowance for Uncollectible Accounts		0.0	(0.1)
Total Accounts Receivable		170.7	238.6
Materials and Supplies		175.0	109.5
Renewable Energy Credits		8.9	35.0
Regulatory Asset for Under-Recovered Fuel Costs		0.0	3.8
Prepayments and Other Current Assets		16.8	21.7
TOTAL CURRENT ASSETS		377.8	414.4
Property, Plant and Equipment
Transmission		3,395.1	3,198.6
Distribution		6,839.4	6,450.3
Other Property, Plant and Equipment		1,125.0	1,051.4
Construction Work in Progress		654.0	474.3
Total Property, Plant and Equipment		12,013.5	11,174.6
Accumulated Depreciation and Amortization		2,713.6	2,565.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		9,299.9	8,609.3
Other Noncurrent Assets
Regulatory Assets		455.0	327.3
Operating Lease Assets		69.9	73.8
Deferred Charges and Other Noncurrent Assets		641.1	578.3
TOTAL OTHER NONCURRENT ASSETS		1,166.0	979.4
TOTAL ASSETS		10,843.7	10,003.1
Current Liabilities
Accounts Payable		320.7	337.3
Short-term Debt:
Long-term Debt Due Within One Year		0.0	0.1
Risk Management Liabilities		6.8	1.8
Customer Deposits		62.0	96.5
Accrued Taxes		763.3	733.1
Obligations Under Operating Leases		13.5	13.5
Other Current Liabilities		183.3	154.2
TOTAL CURRENT LIABILITIES		1,614.3	1,635.5
Noncurrent Liabilities
Long-term Debt		3,366.8	2,970.2
Deferred Income Tax Liabilities, Net		1,152.7	1,101.1
Long-term Risk Management Liabilities		43.9	37.9
Regulatory Liabilities and Deferred Investment Tax Credits		1,003.6	1,044.0
Obligations Under Operating Leases		56.7	60.3
Deferred Credits and Other Noncurrent Liabilities		34.4	66.0
TOTAL NONCURRENT LIABILITIES		5,658.1	5,279.5
TOTAL LIABILITIES		7,272.4	6,915.0
Rate Matters
Commitments and Contingencies
Equity
Common Stock		321.2	321.2
Paid-in Capital		1,012.8	837.8
Retained Earnings		2,237.3	1,929.1
TOTAL EQUITY		3,571.3	3,088.1
TOTAL LIABILITIES AND EQUITY		$ 10,843.7	$ 10,003.1
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
Accounts Receivable:
Affiliated Companies		$ 129.2	$ 100.9
Current Liabilities
Advances From Affiliates		110.5	172.9
Accounts Payable		154.2	126.1
Public Service Co Of Oklahoma [Member]
Current Assets
Cash and Cash Equivalents		2.5	4.0
Accounts Receivable:
Customers		107.6	70.1
Miscellaneous		0.8	0.8
Total Accounts Receivable		139.4	123.1
Fuel		33.7	11.6
Materials and Supplies		106.9	111.1
Risk Management Assets		19.0	25.3
Accrued Tax Benefits		31.0	16.1
Regulatory Asset for Under-Recovered Fuel Costs		118.3	178.7
Prepayments and Other Current Assets		18.7	21.6
TOTAL CURRENT ASSETS		469.5	491.5
Property, Plant and Equipment
Generation		2,695.5	2,394.8
Transmission		1,228.3	1,164.4
Distribution		3,450.8	3,216.4
Other Property, Plant and Equipment		505.9	469.3
Construction Work in Progress		313.7	219.3
Total Property, Plant and Equipment		8,194.2	7,464.2
Accumulated Depreciation and Amortization		2,081.9	1,837.7
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		6,112.3	5,626.5
Other Noncurrent Assets
Regulatory Assets		522.7	653.7
Employee Benefits and Pension Assets		68.4	67.3
Operating Lease Assets		112.8	106.1
Deferred Charges and Other Noncurrent Assets		49.2	20.8
TOTAL OTHER NONCURRENT ASSETS		753.1	847.9
TOTAL ASSETS		7,334.9	6,965.9
Current Liabilities
Accounts Payable		159.3	202.9
Short-term Debt:
Long-term Debt Due Within One Year		0.6	0.5
Risk Management Liabilities		28.9	1.6
Customer Deposits		81.4	59.0
Accrued Taxes		30.7	28.7
Accrued Interest		30.7	18.2
Obligations Under Operating Leases		10.1	8.9
Other Current Liabilities		106.2	82.0
TOTAL CURRENT LIABILITIES		559.0	842.7
Noncurrent Liabilities
Long-term Debt		2,384.0	1,912.3
Deferred Income Tax Liabilities, Net		831.2	788.6
Regulatory Liabilities and Deferred Investment Tax Credits		765.6	809.1
Asset Retirement Obligations		83.9	73.5
Obligations Under Operating Leases		106.8	99.3
Deferred Credits and Other Noncurrent Liabilities		33.8	21.3
TOTAL NONCURRENT LIABILITIES		4,205.3	3,704.1
TOTAL LIABILITIES		4,764.3	4,546.8
Rate Matters
Commitments and Contingencies
Equity
Common Stock		157.2	157.2
Paid-in Capital		1,039.3	1,042.6
Retained Earnings		1,374.3	1,218.0
Accumulated Other Comprehensive Income (Loss)		(0.2)	1.3
TOTAL EQUITY		2,570.6	2,419.1
TOTAL LIABILITIES AND EQUITY		$ 7,334.9	$ 6,965.9
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
Public Service Co Of Oklahoma [Member] | Related Party
Accounts Receivable:
Affiliated Companies		$ 31.0	$ 52.2
Current Liabilities
Advances From Affiliates		54.4	364.2
Accounts Payable		56.7	76.7
Southwestern Electric Power Co [Member]
Current Assets
Cash and Cash Equivalents		2.4	88.4
Accounts Receivable:
Customers		39.0	38.8
Miscellaneous		8.3	10.4
Total Accounts Receivable		94.5	114.6
Fuel		113.8	81.3
Materials and Supplies		88.4	92.1
Risk Management Assets		11.6	16.4
Accrued Tax Benefits		28.4	16.5
Regulatory Asset for Under-Recovered Fuel Costs		170.8	353.0
Prepayments and Other Current Assets		29.2	47.8
TOTAL CURRENT ASSETS		541.3	812.2
Property, Plant and Equipment
Generation		4,790.7	5,476.2
Transmission		2,660.6	2,479.8
Distribution		2,824.1	2,659.6
Other Property, Plant and Equipment		814.4	804.4
Construction Work in Progress		555.8	369.5
Total Property, Plant and Equipment		11,645.6	11,789.5
Accumulated Depreciation and Amortization		3,087.2	3,527.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET		8,558.4	8,262.2
Other Noncurrent Assets
Regulatory Assets		1,131.8	1,042.4
Deferred Charges and Other Noncurrent Assets		326.1	262.0
TOTAL OTHER NONCURRENT ASSETS		1,457.9	1,304.4
TOTAL ASSETS		10,557.6	10,378.8
Current Liabilities
Accounts Payable		198.9	213.1
Short-term Debt:
Other Short-term Debt		4.3	0.0
Long-term Debt Due Within One Year		0.0	6.2
Risk Management Liabilities		14.4	1.4
Customer Deposits		72.5	65.4
Accrued Taxes		58.7	52.8
Accrued Interest		39.9	36.0
Obligations Under Operating Leases		9.0	8.4
Regulatory Liability for Over-Recovered Fuel Costs		3.3	1.4
Other Current Liabilities		154.6	172.0
TOTAL CURRENT LIABILITIES		686.9	947.7
Noncurrent Liabilities
Long-term Debt		3,646.9	3,385.4
Deferred Income Tax Liabilities, Net		1,179.3	1,089.7
Regulatory Liabilities and Deferred Investment Tax Credits		756.1	825.7
Asset Retirement Obligations		258.6	237.2
Employee Benefits and Pension Obligations		43.1	29.7
Obligations Under Operating Leases		122.5	120.2
Deferred Credits and Other Noncurrent Liabilities		93.8	68.4
TOTAL NONCURRENT LIABILITIES		6,100.3	5,756.3
TOTAL LIABILITIES		6,787.2	6,704.0
Rate Matters
Commitments and Contingencies
Equity
Common Stock		0.1	0.1
Paid-in Capital		1,492.2	1,442.2
Retained Earnings		2,281.3	2,236.0
Accumulated Other Comprehensive Income (Loss)		(3.4)	(4.2)
TOTAL COMMON SHAREHOLDERS' EQUITY		3,770.2	3,674.1
Noncontrolling Interests		0.2	0.7
TOTAL EQUITY		3,770.4	3,674.8
TOTAL LIABILITIES AND EQUITY		$ 10,557.6	$ 10,378.8
Common Stock, Par Value Per Share		$ 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		$ 2.2	$ 2.1
Accounts Receivable:
Affiliated Companies		47.2	65.4
Current Liabilities
Advances From Affiliates		88.7	310.7
Accounts Payable		45.9	81.7
Southwestern Electric Power Co [Member] | Sabine Mining Co [Member]
Current Assets
Cash and Cash Equivalents		0.0	84.2
Accounts Receivable:
Fuel		0.0	14.2
Materials and Supplies		3.9	4.2
Property, Plant and Equipment
Other Property, Plant and Equipment		182.7	219.8
Accumulated Depreciation and Amortization		182.7	$ 212.5
Southwestern Electric Power Co [Member] | Sabine Mining Co [Member] | Related Party
Current Liabilities
Accounts Payable		$ 34.0

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