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Condensed Consolidated Balance Sheets - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Current Assets    
Cash and Cash Equivalents $ 312.7 $ 392.7
Restricted Cash 47.0 45.6
Other Temporary Investments 221.7 200.8
Accounts Receivable:    
Customers 794.8 613.6
Accrued Unbilled Revenues 259.6 248.7
Pledged Accounts Receivable - AEP Credit 1,003.1 1,018.4
Miscellaneous 66.6 33.1
Allowance for Uncollectible Accounts (50.3) (71.1)
Total Accounts Receivable 2,073.8 1,842.7
Fuel 512.2 629.4
Materials and Supplies 676.2 680.6
Risk Management Assets 214.7 94.7
Accrued Tax Benefits 189.8 185.3
Regulatory Asset for Under-Recovered Fuel Costs 180.3 90.7
Margin Deposits 43.5 62.0
Prepayments and Other Current Assets 133.9 127.0
TOTAL CURRENT ASSETS 4,605.8 4,351.5
Property, Plant and Equipment    
Generation 23,687.3 23,133.9
Transmission 29,213.7 27,886.7
Distribution 24,704.6 23,972.1
Other Property, Plant and Equipment 5,571.4 5,294.6
Construction Work in Progress 3,879.3 4,025.7
Total Property, Plant and Equipment 87,056.3 84,313.0
Accumulated Depreciation and Amortization 21,391.8 20,411.4
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 65,664.5 63,901.6
Other Noncurrent Assets    
Regulatory Assets 5,048.2 3,527.0
Securitized Assets 608.0 657.0
Spent Nuclear Fuel and Decommissioning Trusts 3,612.4 3,306.7
Goodwill 52.5 52.5
Long-term Risk Management Assets 241.3 242.2
Operating Lease Assets 797.6 866.4
Deferred Charges and Other Noncurrent Assets 3,727.9 3,852.3
TOTAL OTHER NONCURRENT ASSETS 14,087.9 12,504.1
TOTAL ASSETS 84,358.2 80,757.2
Current Liabilities    
Accounts Payable 1,641.6 1,709.7
Short-term Debt:    
Securitized Debt for Receivables - AEP Credit [1] 578.2 592.0
Other Short-term Debt 2,549.8 1,887.3
Total Short-term Debt 3,128.0 2,479.3
Long-term Debt Due Within One Year 2,458.5 2,086.1
Risk Management Liabilities 47.8 78.8
Customer Deposits 350.1 335.6
Accrued Taxes 1,243.5 1,476.4
Accrued Interest 274.0 267.6
Obligations Under Operating Leases 242.7 241.3
Regulatory Liability for Over-Recovered Fuel Costs 32.7 52.6
Other Current Liabilities 1,009.7 1,199.3
TOTAL CURRENT LIABILITIES 10,428.6 9,926.7
Noncurrent Liabilities    
Long-term Debt 30,659.3 28,986.4
Affiliated Long Term Debt Noncurrent 0.0 0.0
Long-term Risk Management Liabilities 216.3 232.8
Deferred Income Taxes 8,382.1 8,240.9
Regulatory Liabilities and Deferred Investment Tax Credits 8,767.5 8,378.7
Asset Retirement Obligations 2,576.2 2,469.2
Employee Benefits and Pension Obligations 340.1 336.4
Obligations Under Operating Leases 568.4 638.4
Deferred Credits and Other Noncurrent Liabilities 724.9 728.0
TOTAL NONCURRENT LIABILITIES 52,234.8 50,010.8
TOTAL LIABILITIES 62,663.4 59,937.5
Rate Matters
Commitments and Contingencies
Contingently Reedemable Performance Share Awards 64.9 45.2
Total Mezzanine Equity 64.9 45.2
Equity    
Common Stock 3,382.7 3,359.3
Paid-in Capital 6,800.3 6,588.9
Retained Earnings 11,098.7 10,687.8
Accumulated Other Comprehensive Income (Loss) 97.0 (85.1)
TOTAL COMMON SHAREHOLDER'S EQUITY 21,378.7 20,550.9
Noncontrolling Interests 251.2 223.6
TOTAL EQUITY 21,629.9 20,774.5
TOTAL LIABILITIES AND EQUITY $ 84,358.2 $ 80,757.2
Common Stock, No Par Value $ 6.50 $ 6.50
Common Stock, Shares Authorized 600,000,000 600,000,000
Treasury Stock, Shares 20,204,160 20,204,160
Common Stock, Shares, Issued 520,422,130 516,808,354
Commodity [Member]    
Equity    
Cross Default Provisions Maximum Third Party Obligation Amount $ 50.0 $ 50.0
Subsidiaries [Member]    
Current Assets    
Restricted Cash 47.0 45.6
Other Temporary Investments 204.9 194.6
Short-term Debt:    
Long-term Debt Due Within One Year 210.2 198.3
Noncurrent Liabilities    
Long-term Debt 922.5 950.1
AEP Texas Inc. [Member]    
Current Assets    
Cash and Cash Equivalents 0.1 0.1
Restricted Cash 27.9 28.7
Advances to Affiliates 54.3 7.1
Accounts Receivable:    
Customers 141.7 112.8
Affiliated Companies - Contracts with Customers 6.9 5.1
Accrued Unbilled Revenues 82.9 65.8
Miscellaneous 0.1 0.0
Allowance for Uncollectible Accounts (4.2) (0.1)
Total Accounts Receivable 227.4 183.6
Materials and Supplies 69.5 70.0
Accrued Tax Benefits 4.5 16.8
Prepayments and Other Current Assets 4.3 4.6
TOTAL CURRENT ASSETS 388.0 310.9
Property, Plant and Equipment    
Transmission 5,571.9 5,279.6
Distribution 4,750.8 4,580.8
Other Property, Plant and Equipment 908.9 868.4
Construction Work in Progress 510.0 614.1
Total Property, Plant and Equipment 11,741.6 11,342.9
Accumulated Depreciation and Amortization 1,588.9 1,529.3
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 10,152.7 9,813.6
Other Noncurrent Assets    
Regulatory Assets 292.0 266.8
Securitized Assets 410.4 446.8
Deferred Charges and Other Noncurrent Assets 240.7 192.1
TOTAL OTHER NONCURRENT ASSETS 943.1 905.7
TOTAL ASSETS 11,483.8 11,030.2
Current Liabilities    
Advances from Affiliates 0.0 67.1
Accounts Payable 185.8 231.7
Affiliated Companies 31.1 44.0
Short-term Debt:    
Long-term Debt Due Within One Year 289.9 88.7
Accrued Taxes 113.4 78.3
Accrued Interest 46.2 43.9
Obligations Under Operating Leases 14.2 14.5
Other Current Liabilities 78.5 108.6
TOTAL CURRENT LIABILITIES 759.1 676.8
Noncurrent Liabilities    
Long-term Debt 4,936.1 4,731.7
Deferred Income Taxes 1,045.9 1,016.7
Regulatory Liabilities and Deferred Investment Tax Credits 1,273.6 1,270.8
Obligations Under Operating Leases 67.7 71.0
Deferred Credits and Other Noncurrent Liabilities 68.9 57.2
TOTAL NONCURRENT LIABILITIES 7,392.2 7,147.4
TOTAL LIABILITIES 8,151.3 7,824.2
Rate Matters
Commitments and Contingencies
Equity    
Paid-in Capital 1,457.9 1,457.9
Retained Earnings 1,882.9 1,757.0
Accumulated Other Comprehensive Income (Loss) (8.3) (8.9)
TOTAL EQUITY 3,332.5 3,206.0
TOTAL LIABILITIES AND EQUITY 11,483.8 11,030.2
AEP Texas Inc. [Member] | AEP Texas Transition Funding and Restoration Funding [Member]    
Current Assets    
Restricted Cash 27.9 28.7
Other Noncurrent Assets    
Securitized Assets 410.4 446.8
Short-term Debt:    
Long-term Debt Due Within One Year 89.8 88.7
Accrued Interest 2.4 2.5
Noncurrent Liabilities    
Long-term Debt 362.3 403.9
AEP Transmission Co [Member]    
Current Assets    
Cash and Cash Equivalents 0.0 0.0
Advances to Affiliates 113.6 109.1
Accounts Receivable:    
Customers 29.7 22.9
Affiliated Companies - Contracts with Customers 96.6 81.2
Total Accounts Receivable 126.3 104.1
Materials and Supplies 9.0 8.5
Prepayments and Other Current Assets 14.6 14.1
TOTAL CURRENT ASSETS 263.5 235.8
Property, Plant and Equipment    
Transmission 10,278.7 9,593.5
Other Property, Plant and Equipment 381.5 329.5
Construction Work in Progress 1,393.4 1,422.6
Total Property, Plant and Equipment 12,053.6 11,345.6
Accumulated Depreciation and Amortization 677.1 572.8
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 11,376.5 10,772.8
Other Noncurrent Assets    
Regulatory Assets 14.8 15.1
Deferred Property Taxes 126.8 220.1
Deferred Charges and Other Noncurrent Assets 8.7 2.2
TOTAL OTHER NONCURRENT ASSETS 150.3 237.4
TOTAL ASSETS 11,790.3 11,246.0
Current Liabilities    
Advances from Affiliates 265.3 156.7
Accounts Payable 368.4 380.4
Affiliated Companies 70.7 97.3
Short-term Debt:    
Long-term Debt Due Within One Year 50.0 50.0
Accrued Taxes 313.4 418.1
Accrued Interest 23.9 23.9
Obligations Under Operating Leases 0.9 1.2
Other Current Liabilities 10.5 9.9
TOTAL CURRENT LIABILITIES 1,103.1 1,137.5
Noncurrent Liabilities    
Long-term Debt 3,899.3 3,898.5
Deferred Income Taxes 958.9 906.9
Regulatory Liabilities and Deferred Investment Tax Credits 620.4 581.8
Obligations Under Operating Leases 0.7 0.4
Deferred Credits and Other Noncurrent Liabilities 10.7 8.0
TOTAL NONCURRENT LIABILITIES 5,490.0 5,395.6
TOTAL LIABILITIES 6,593.1 6,533.1
Rate Matters
Commitments and Contingencies
Equity    
Paid-in Captial 2,949.6 2,765.6
Retained Earnings 2,247.6 1,947.3
TOTAL MEMBER'S EQUITY 5,197.2 4,712.9
TOTAL LIABILITIES AND EQUITY 11,790.3 11,246.0
Appalachian Power Co [Member]    
Current Assets    
Cash and Cash Equivalents 3.9 5.8
Restricted Cash 19.1 16.9
Advances to Affiliates 91.7 21.4
Accounts Receivable:    
Customers 149.7 142.8
Affiliated Companies - Contracts with Customers 63.8 64.3
Accrued Unbilled Revenues 48.9 80.1
Miscellaneous 2.2 0.3
Allowance for Uncollectible Accounts (2.3) (3.1)
Total Accounts Receivable 262.3 284.4
Fuel 145.3 193.6
Materials and Supplies 102.5 99.6
Risk Management Assets 37.1 22.4
Regulatory Asset for Under-Recovered Fuel Costs 26.4 5.3
Prepayments and Other Current Assets 59.6 24.7
TOTAL CURRENT ASSETS 747.9 674.1
Property, Plant and Equipment    
Generation 6,653.9 6,633.7
Transmission 4,004.8 3,900.5
Distribution 4,563.2 4,464.3
Other Property, Plant and Equipment 663.7 627.2
Construction Work in Progress 529.7 484.6
Total Property, Plant and Equipment 16,415.3 16,110.3
Accumulated Depreciation and Amortization 4,888.8 4,716.2
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 11,526.5 11,394.1
Other Noncurrent Assets    
Regulatory Assets 830.4 686.3
Securitized Assets 197.6 210.1
Employee Benefits and Pension Assets 154.5 150.1
Operating Lease Assets 74.0 78.8
Deferred Charges and Other Noncurrent Assets 115.8 121.7
TOTAL OTHER NONCURRENT ASSETS 1,372.3 1,247.0
TOTAL ASSETS 13,646.7 13,315.2
Current Liabilities    
Advances from Affiliates 0.0 18.6
Accounts Payable 219.0 212.0
Affiliated Companies 81.4 97.1
Short-term Debt:    
Long-term Debt Due Within One Year 380.4 518.3
Customer Deposits 72.0 77.8
Accrued Taxes 109.3 109.9
Accrued Interest 48.8 49.9
Obligations Under Operating Leases 15.1 14.9
Other Current Liabilities 108.8 119.2
TOTAL CURRENT LIABILITIES 1,034.8 1,217.7
Noncurrent Liabilities    
Long-term Debt 4,569.4 4,315.8
Deferred Income Taxes 1,739.4 1,749.9
Regulatory Liabilities and Deferred Investment Tax Credits 1,251.3 1,224.7
Asset Retirement Obligations 385.8 304.8
Employee Benefits and Pension Obligations 43.7 44.0
Obligations Under Operating Leases 59.5 64.4
Deferred Credits and Other Noncurrent Liabilities 48.0 49.6
TOTAL NONCURRENT LIABILITIES 8,097.1 7,753.2
TOTAL LIABILITIES 9,131.9 8,970.9
Rate Matters
Commitments and Contingencies
Equity    
Common Stock 260.4 260.4
Paid-in Capital 1,828.7 1,828.7
Retained Earnings 2,411.8 2,248.0
Accumulated Other Comprehensive Income (Loss) 13.9 7.2
TOTAL EQUITY 4,514.8 4,344.3
TOTAL LIABILITIES AND EQUITY $ 13,646.7 $ 13,315.2
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
Indiana Michigan Power Co [Member]    
Current Assets    
Cash and Cash Equivalents $ 2.5 $ 3.3
Advances to Affiliates 99.9 13.3
Accounts Receivable:    
Customers 50.7 44.0
Affiliated Companies - Contracts with Customers 43.5 51.3
Accrued Unbilled Revenues 2.5 0.0
Miscellaneous 1.9 2.0
Allowance for Uncollectible Accounts (0.2) (0.3)
Total Accounts Receivable 98.4 97.0
Fuel 63.8 86.0
Materials and Supplies 171.0 175.8
Risk Management Assets 7.7 3.6
Accrued Tax Benefits 6.6 10.3
Regulatory Asset for Under-Recovered Fuel Costs 5.6 5.4
Prepayments and Other Current Assets 20.8 24.1
TOTAL CURRENT ASSETS 476.3 418.8
Property, Plant and Equipment    
Generation 5,324.7 5,264.7
Transmission 1,727.0 1,696.4
Distribution 2,680.8 2,594.6
Other Property, Plant and Equipment 699.4 686.7
Construction Work in Progress 368.4 362.4
Total Property, Plant and Equipment 10,800.3 10,604.8
Accumulated Depreciation and Amortization 3,726.9 3,552.5
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 7,073.4 7,052.3
Other Noncurrent Assets    
Regulatory Assets 433.1 404.8
Spent Nuclear Fuel and Decommissioning Trusts 3,612.4 3,306.7
Operating Lease Assets 175.9 218.1
Deferred Charges and Other Noncurrent Assets 226.5 237.6
TOTAL OTHER NONCURRENT ASSETS 4,447.9 4,167.2
TOTAL ASSETS 11,997.6 11,638.3
Current Liabilities    
Advances from Affiliates 0.0 103.0
Accounts Payable 143.3 153.2
Affiliated Companies 74.2 80.5
Short-term Debt:    
Long-term Debt Due Within One Year 140.2 369.6
Risk Management Liabilities 1.1 0.1
Customer Deposits 39.9 41.7
Accrued Taxes 93.5 102.5
Accrued Interest 37.7 35.6
Obligations Under Operating Leases 86.5 85.6
Regulatory Liability for Over-Recovered Fuel Costs 15.2 20.8
Other Current Liabilities 88.6 111.9
TOTAL CURRENT LIABILITIES 720.2 1,104.5
Noncurrent Liabilities    
Long-term Debt 3,114.8 2,660.3
Deferred Income Taxes 1,093.4 1,064.4
Regulatory Liabilities and Deferred Investment Tax Credits 2,251.4 2,041.9
Asset Retirement Obligations 1,849.3 1,812.9
Obligations Under Operating Leases 91.9 135.9
Deferred Credits and Other Noncurrent Liabilities 98.6 69.2
TOTAL NONCURRENT LIABILITIES 8,499.4 7,784.6
TOTAL LIABILITIES 9,219.6 8,889.1
Rate Matters
Commitments and Contingencies
Equity    
Common Stock 56.6 56.6
Paid-in Capital 980.9 980.9
Retained Earnings 1,746.7 1,718.7
Accumulated Other Comprehensive Income (Loss) (6.2) (7.0)
TOTAL EQUITY 2,778.0 2,749.2
TOTAL LIABILITIES AND EQUITY $ 11,997.6 $ 11,638.3
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] | DCC Fuel [Member]    
Short-term Debt:    
Long-term Debt Due Within One Year $ 60.9 $ 75.7
Ohio Power Co [Member]    
Current Assets    
Cash and Cash Equivalents 5.8 7.4
Accounts Receivable:    
Customers 86.1 50.0
Affiliated Companies - Contracts with Customers 74.7 65.1
Accrued Unbilled Revenues 16.4 14.8
Miscellaneous 7.1 3.9
Allowance for Uncollectible Accounts (0.7) (0.6)
Total Accounts Receivable 183.6 133.2
Materials and Supplies 68.8 66.9
Renewable Energy Credits 31.7 29.5
Prepayments and Other Current Assets 23.7 19.3
TOTAL CURRENT ASSETS 313.6 256.3
Property, Plant and Equipment    
Transmission 2,901.5 2,831.9
Distribution 5,889.8 5,708.3
Other Property, Plant and Equipment 959.8 899.6
Construction Work in Progress 341.1 362.3
Total Property, Plant and Equipment 10,092.2 9,802.1
Accumulated Depreciation and Amortization 2,416.0 2,350.0
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 7,676.2 7,452.1
Other Noncurrent Assets    
Regulatory Assets 399.7 385.8
Operating Lease Assets 86.6 92.0
Deferred Charges and Other Noncurrent Assets 383.9 524.2
TOTAL OTHER NONCURRENT ASSETS 870.2 1,002.0
TOTAL ASSETS 8,860.0 8,710.4
Current Liabilities    
Advances from Affiliates 56.3 259.2
Accounts Payable 186.9 181.0
Affiliated Companies 95.6 118.4
Short-term Debt:    
Long-term Debt Due Within One Year 500.1 500.1
Risk Management Liabilities 7.3 8.7
Customer Deposits 76.7 55.1
Accrued Taxes 413.9 631.0
Obligations Under Operating Leases 13.1 13.1
Other Current Liabilities 131.0 139.6
TOTAL CURRENT LIABILITIES 1,480.9 1,906.2
Noncurrent Liabilities    
Long-term Debt 2,376.7 1,930.1
Long-term Risk Management Liabilities 98.2 101.6
Deferred Income Taxes 994.5 955.1
Regulatory Liabilities and Deferred Investment Tax Credits 999.3 1,005.2
Obligations Under Operating Leases 74.1 79.5
Deferred Credits and Other Noncurrent Liabilities 45.2 40.0
TOTAL NONCURRENT LIABILITIES 4,588.0 4,111.5
TOTAL LIABILITIES 6,068.9 6,017.7
Rate Matters
Commitments and Contingencies
Equity    
Common Stock 321.2 321.2
Paid-in Capital 838.8 838.8
Retained Earnings 1,631.1 1,532.7
TOTAL EQUITY 2,791.1 2,692.7
TOTAL LIABILITIES AND EQUITY $ 8,860.0 $ 8,710.4
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
Public Service Co Of Oklahoma [Member]    
Current Assets    
Cash and Cash Equivalents $ 2.6 $ 2.6
Accounts Receivable:    
Customers 38.6 30.8
Affiliated Companies - Contracts with Customers 31.9 15.6
Miscellaneous 0.0 2.0
Total Accounts Receivable 70.5 48.4
Fuel 10.6 17.9
Materials and Supplies 52.8 54.0
Risk Management Assets 23.0 10.3
Accrued Tax Benefits 0.2 10.9
Regulatory Asset for Under-Recovered Fuel Costs 84.8 30.1
Prepayments and Other Current Assets 11.5 7.1
TOTAL CURRENT ASSETS 256.0 181.3
Property, Plant and Equipment    
Generation 1,609.3 1,480.7
Transmission 1,088.1 1,069.9
Distribution 2,927.2 2,853.0
Other Property, Plant and Equipment 420.2 393.3
Construction Work in Progress 106.9 128.7
Total Property, Plant and Equipment 6,151.7 5,925.6
Accumulated Depreciation and Amortization 1,653.2 1,605.6
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 4,498.5 4,320.0
Other Noncurrent Assets    
Regulatory Assets 1,054.0 375.0
Employee Benefits and Pension Assets 66.1 65.8
Operating Lease Assets 54.1 42.6
Deferred Charges and Other Noncurrent Assets 29.7 6.0
TOTAL OTHER NONCURRENT ASSETS 1,203.9 489.4
TOTAL ASSETS 5,958.4 4,990.7
Current Liabilities    
Advances from Affiliates 135.1 155.4
Accounts Payable 117.1 107.0
Affiliated Companies 41.6 43.4
Short-term Debt:    
Long-term Debt Due Within One Year 0.5 0.5
Customer Deposits 54.1 54.8
Accrued Taxes 75.3 26.8
Obligations Under Operating Leases 6.7 6.5
Other Current Liabilities 61.8 84.2
TOTAL CURRENT LIABILITIES 492.2 478.6
Noncurrent Liabilities    
Long-term Debt 1,623.3 1,373.3
Deferred Income Taxes 668.4 688.5
Regulatory Liabilities and Deferred Investment Tax Credits 852.6 802.2
Asset Retirement Obligations 49.7 45.7
Obligations Under Operating Leases 47.5 36.2
Deferred Credits and Other Noncurrent Liabilities 20.8 20.6
TOTAL NONCURRENT LIABILITIES 3,262.3 2,966.5
TOTAL LIABILITIES 3,754.5 3,445.1
Rate Matters
Commitments and Contingencies
Equity    
Common Stock 157.2 157.2
Paid-in Capital 1,039.0 414.0
Retained Earnings 1,007.7 974.3
Accumulated Other Comprehensive Income (Loss) 0.0 0.1
TOTAL EQUITY 2,203.9 1,545.6
TOTAL LIABILITIES AND EQUITY $ 5,958.4 $ 4,990.7
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 $ 28.0 $ 13.2
Advances to Affiliates 29.7 2.1
Accounts Receivable:    
Customers 102.2 27.1
Affiliated Companies - Contracts with Customers 30.1 25.1
Miscellaneous 14.6 12.7
Total Accounts Receivable 146.9 64.9
Fuel 179.1 191.1
Materials and Supplies 88.1 95.8
Risk Management Assets 14.0 3.2
Accrued Tax Benefits 14.5 29.9
Regulatory Asset for Under-Recovered Fuel Costs 0.0 2.6
Prepayments and Other Current Assets 16.4 25.2
TOTAL CURRENT ASSETS 516.7 428.0
Property, Plant and Equipment    
Generation 4,839.4 4,681.4
Transmission 2,260.0 2,165.7
Distribution 2,475.7 2,382.5
Other Property, Plant and Equipment 809.0 788.8
Construction Work in Progress 159.8 228.3
Total Property, Plant and Equipment 10,543.9 10,246.7
Accumulated Depreciation and Amortization 3,375.4 3,158.5
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET 7,168.5 7,088.2
Other Noncurrent Assets    
Regulatory Assets 1,006.2 403.1
Long-term Risk Management Assets 0.6 0.0
Deferred Charges and Other Noncurrent Assets 283.2 234.8
TOTAL OTHER NONCURRENT ASSETS 1,290.0 637.9
TOTAL ASSETS 8,975.2 8,154.1
Current Liabilities    
Advances from Affiliates 149.6 124.6
Accounts Payable 121.8 135.9
Affiliated Companies 50.1 43.0
Short-term Debt:    
Other Short-term Debt 0.0 35.0
Long-term Debt Due Within One Year 381.2 106.2
Risk Management Liabilities 0.0 0.7
Customer Deposits 60.7 61.3
Accrued Taxes 108.3 41.0
Accrued Interest 36.0 34.6
Obligations Under Operating Leases 8.3 7.9
Other Current Liabilities 130.5 173.4
TOTAL CURRENT LIABILITIES 1,046.5 763.6
Noncurrent Liabilities    
Long-term Debt 2,749.5 2,530.2
Long-term Risk Management Liabilities 0.0 1.0
Deferred Income Taxes 1,040.3 1,017.6
Regulatory Liabilities and Deferred Investment Tax Credits 874.8 863.4
Asset Retirement Obligations 191.6 193.7
Employee Benefits and Pension Obligations 22.9 18.6
Obligations Under Operating Leases 58.5 44.1
Deferred Credits and Other Noncurrent Liabilities 89.2 94.2
TOTAL NONCURRENT LIABILITIES 5,026.8 4,762.8
TOTAL LIABILITIES 6,073.3 5,526.4
Rate Matters
Commitments and Contingencies
Equity    
Common Stock 0.1 0.1
Paid-in Capital 987.2 812.2
Retained Earnings 1,911.1 1,811.9
Accumulated Other Comprehensive Income (Loss) 1.9 1.9
TOTAL COMMON SHAREHOLDER'S EQUITY 2,900.3 2,626.1
Noncontrolling Interests 1.6 1.6
TOTAL EQUITY 2,901.9 2,627.7
TOTAL LIABILITIES AND EQUITY $ 8,975.2 $ 8,154.1
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] | Sabine Mining Co [Member]    
Current Assets    
Cash and Cash Equivalents $ 24.9 $ 10.1
Accounts Receivable:    
Fuel 20.3 35.2
Materials and Supplies 18.2 23.3
Property, Plant and Equipment    
Other Property, Plant and Equipment 219.9 223.7
Accumulated Depreciation and Amortization $ 144.6 $ 126.5
[1] Amount of securitized debt for receivables as accounted for under the “Transfers and Servicing” accounting guidance.