Organization and Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended |
|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Materials and Supplies |
|
$ 681.3
|
|
$ 680.6
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
2,717.1
|
|
2,487.5
|
$ 2,203.7
|
|
Amortization of Certain Securitized Assets |
|
64.2
|
|
171.3
|
280.7
|
|
Amortization of Regulatory Assets and Liabilities |
|
44.4
|
|
24.0
|
30.1
|
|
Total Depreciation and Amortization |
|
2,825.7
|
|
2,682.8
|
2,514.5
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
392.7
|
|
|
|
|
Restricted Cash |
|
48.0
|
|
45.6
|
|
|
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |
|
451.4
|
|
438.3
|
432.6
|
$ 444.1
|
Amounts Attributable to AEP Common Shareholders |
|
|
|
|
|
|
Net Income (Loss) Attributable to Noncontrolling Interests |
|
0.0
|
|
(3.4)
|
(1.3)
|
|
Net Income (Loss) |
|
$ 2,488.1
|
|
$ 2,200.1
|
$ 1,921.1
|
|
Weighted Average Number of Basic AEP Common Shares Outstanding |
|
500,522,177
|
|
495,718,223
|
493,694,345
|
|
Earnings Per Share, Basic |
|
$ 4.97
|
|
$ 4.44
|
$ 3.89
|
|
Weighted Average Dilutive Effect of: |
|
|
|
|
|
|
Weighted Average Number of Diluted AEP Common Shares Outstanding |
|
501,784,032
|
|
497,226,867
|
495,306,238
|
|
Earnings Per Share, Diluted |
|
$ 4.96
|
|
$ 4.42
|
$ 3.88
|
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
$ 16,792.0
|
|
$ 14,918.5
|
$ 15,561.4
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
2,825.7
|
|
2,682.8
|
2,514.5
|
|
TOTAL EXPENSES |
|
13,380.7
|
|
11,930.8
|
12,969.1
|
|
OPERATING INCOME (LOSS) |
|
3,411.3
|
|
2,987.7
|
2,592.3
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
139.7
|
|
148.1
|
168.4
|
|
Interest Expense |
|
(1,199.1)
|
|
(1,165.7)
|
(1,072.5)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
2,511.9
|
|
2,146.1
|
1,834.8
|
|
Income Tax Expense (Benefit) |
|
115.5
|
|
40.5
|
(12.9)
|
|
Net Income (Loss) |
|
2,488.1
|
|
2,196.7
|
1,919.8
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
720.9
|
|
613.6
|
|
|
Total Accounts Receivable |
|
1,941.6
|
|
1,842.7
|
|
|
Accrued Tax Benefits |
|
121.5
|
|
185.3
|
|
|
TOTAL CURRENT ASSETS |
|
7,809.2
|
|
4,351.5
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
29,911.1
|
|
27,886.7
|
|
|
Other Property, Plant and Equipment |
|
5,682.9
|
|
5,294.6
|
|
|
Construction Work in Progress |
|
3,684.3
|
|
4,025.7
|
|
|
Total Property, Plant and Equipment |
|
86,806.4
|
|
84,313.0
|
|
|
Accumulated Depreciation and Amortization |
|
20,805.1
|
|
20,411.4
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
66,001.3
|
[1] |
63,901.6
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
13,858.2
|
|
12,504.1
|
|
|
TOTAL ASSETS |
|
87,668.7
|
[2] |
80,757.2
|
75,892.3
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
2,054.6
|
|
1,709.7
|
|
|
Accrued Taxes |
|
1,586.4
|
|
1,476.4
|
|
|
TOTAL CURRENT LIABILITIES |
|
12,426.7
|
|
9,926.7
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
8,202.5
|
|
8,240.9
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
8,686.3
|
[3] |
8,378.7
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
52,518.5
|
|
50,010.8
|
|
|
TOTAL LIABILITIES |
|
64,945.2
|
|
59,937.5
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
11,667.1
|
|
10,687.8
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
87,668.7
|
|
80,757.2
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
2,488.1
|
|
2,196.7
|
1,919.8
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
2,825.7
|
|
2,682.8
|
2,514.5
|
|
Deferred Income Taxes |
|
107.6
|
|
196.1
|
(17.8)
|
|
Allowance for Equity Funds Used During Construction |
|
(139.7)
|
|
(148.1)
|
(168.4)
|
|
Amortization of Deferred Property Taxes |
|
(68.0)
|
|
(43.3)
|
(73.8)
|
|
Change in Other Noncurrent Assets |
|
(132.7)
|
|
(142.5)
|
(112.8)
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
206.4
|
|
(54.5)
|
(116.1)
|
|
Accounts Receivable, Net |
|
(119.7)
|
|
(129.3)
|
247.8
|
|
Accounts Payable |
|
200.6
|
|
(35.3)
|
5.8
|
|
Accrued Taxes, Net |
|
218.7
|
|
20.1
|
138.9
|
|
Net Cash Flows from Operating Activities |
|
3,839.9
|
|
3,832.9
|
4,270.1
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(6,433.9)
|
|
(6,233.9)
|
(7,144.5)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
2,607.1
|
|
2,406.7
|
2,862.9
|
|
Cash and Cash Equivalents at Beginning of Period |
|
392.7
|
|
|
|
|
Cash and Cash Equivalents at End of Period |
|
403.4
|
|
392.7
|
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
1,137.2
|
|
1,029.1
|
1,022.5
|
|
Income Taxes |
|
13.2
|
|
(49.1)
|
6.1
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Noncash Acquisition Under Finance Leases |
|
287.6
|
|
44.2
|
87.5
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
1,180.4
|
|
975.4
|
1,341.1
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
1,180.4
|
|
975.4
|
1,341.1
|
|
Construction Expenditures Included in Noncurrent Liabilities as of December 31, |
|
0.0
|
|
5.5
|
0.0
|
|
Acquisition of Nuclear Fuel Included in Current Liabilities as of December 31, |
|
0.0
|
|
33.4
|
0.1
|
|
Expected Reimbursement For Spent Nuclear Fuel Dry Cask Storage |
|
1.7
|
|
2.6
|
0.3
|
|
Forward Equity Purchase Contracts Included in Current and Noncurrent Liabilities as of December 31, |
|
47.8
|
|
(86.2)
|
(7.6)
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
6,486.3
|
|
5,626.1
|
4,536.6
|
|
Repayments of Long-term Debt |
|
2,989.3
|
|
1,339.8
|
1,220.8
|
|
Equity Method Investment |
|
1,447.5
|
|
1,406.3
|
1,356.6
|
|
Income (Loss) from Equity Method Investment |
|
$ 91.7
|
|
$ 91.1
|
$ 72.1
|
|
Antidilutive Shares Outstanding |
|
0
|
|
128,000
|
0
|
|
Net Income (Loss) |
|
$ 2,488.1
|
|
$ 2,196.7
|
$ 1,919.8
|
|
Retained Earnings |
|
11,667.1
|
|
10,687.8
|
|
|
2020 Equity Units [Member] |
|
|
|
|
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Forward Equity Purchase Contracts Included in Current and Noncurrent Liabilities as of December 31, |
|
0.0
|
|
110.6
|
|
|
2019 Equity Units [Member] |
|
|
|
|
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Forward Equity Purchase Contracts Included in Current and Noncurrent Liabilities as of December 31, |
|
|
|
|
47.3
|
|
Cedar Creek Project |
|
|
|
|
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Noncash Contribution of Assets to Cedar Creek Project |
|
(9.3)
|
|
0.0
|
0.0
|
|
Sempra Renewable LLC and Santa Rita |
|
|
|
|
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Liabilities Assumed with Sempra Renewable LLC and Santa Rita East Acquisition |
|
0.0
|
|
0.0
|
32.4
|
|
Retained Earnings [Member] |
|
|
|
|
|
|
Amounts Attributable to AEP Common Shareholders |
|
|
|
|
|
|
Net Income (Loss) |
|
2,488.1
|
|
2,200.1
|
1,921.1
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Forward Equity Purchase Contracts Included in Current and Noncurrent Liabilities as of December 31, |
|
$ (1.1)
|
|
|
|
|
Berkshire Hathaway [Member] |
|
|
|
|
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Equity Method Investment, Ownership Percentage |
|
50.00%
|
|
|
|
|
AEP Transmission Holdco [Member] |
|
|
|
|
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Equity Method Investment, Ownership Percentage |
|
50.00%
|
|
|
|
|
Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
177.0
|
|
|
AEP Texas Inc. [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
73.9
|
|
70.0
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
327.2
|
|
364.2
|
365.9
|
|
Amortization of Certain Securitized Assets |
|
64.2
|
|
171.3
|
258.7
|
|
Amortization of Regulatory Assets and Liabilities |
|
(4.4)
|
|
(5.7)
|
(2.3)
|
|
Total Depreciation and Amortization |
|
387.0
|
|
529.8
|
622.3
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
0.1
|
|
|
|
|
Restricted Cash |
|
30.4
|
|
28.7
|
|
|
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |
|
30.5
|
|
28.8
|
157.8
|
159.8
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
1,593.8
|
|
1,618.9
|
1,709.3
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
387.0
|
|
529.8
|
622.3
|
|
TOTAL EXPENSES |
|
1,117.8
|
|
1,249.3
|
1,477.3
|
|
OPERATING INCOME (LOSS) |
|
476.0
|
|
369.6
|
232.0
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
21.5
|
|
19.4
|
15.2
|
|
Interest Expense |
|
(176.5)
|
|
(171.8)
|
(137.2)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
332.9
|
|
229.8
|
124.7
|
|
Income Tax Expense (Benefit) |
|
43.1
|
|
(11.2)
|
(53.6)
|
|
Net Income (Loss) |
|
289.8
|
|
241.0
|
178.3
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
123.4
|
|
112.8
|
|
|
Total Accounts Receivable |
|
205.2
|
|
183.6
|
|
|
Accrued Tax Benefits |
|
24.8
|
|
16.8
|
|
|
TOTAL CURRENT ASSETS |
|
347.2
|
|
310.9
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
5,849.9
|
|
5,279.6
|
|
|
Other Property, Plant and Equipment |
|
961.1
|
|
868.4
|
|
|
Construction Work in Progress |
|
551.3
|
|
614.1
|
|
|
Total Property, Plant and Equipment |
|
12,279.5
|
|
11,342.9
|
|
|
Accumulated Depreciation and Amortization |
|
1,644.1
|
|
1,529.3
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
10,635.4
|
|
9,813.6
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
854.1
|
|
905.7
|
|
|
TOTAL ASSETS |
|
11,836.7
|
|
11,030.2
|
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
306.3
|
|
231.7
|
|
|
Affiliated Companies |
|
32.5
|
|
44.0
|
|
|
Accrued Taxes |
|
93.3
|
|
78.3
|
|
|
TOTAL CURRENT LIABILITIES |
|
1,311.7
|
|
676.8
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
1,088.9
|
|
1,016.7
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
1,242.0
|
|
1,270.8
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
6,930.8
|
|
7,147.4
|
|
|
TOTAL LIABILITIES |
|
8,242.5
|
|
7,824.2
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
2,046.8
|
|
1,757.0
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
11,836.7
|
|
11,030.2
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
289.8
|
|
241.0
|
178.3
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
387.0
|
|
529.8
|
622.3
|
|
Deferred Income Taxes |
|
43.0
|
|
(15.2)
|
(23.5)
|
|
Allowance for Equity Funds Used During Construction |
|
(21.5)
|
|
(19.4)
|
(15.2)
|
|
Change in Other Noncurrent Assets |
|
(78.2)
|
|
(74.0)
|
9.3
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
26.4
|
|
(24.7)
|
11.3
|
|
Accounts Receivable, Net |
|
(21.6)
|
|
9.8
|
3.5
|
|
Accounts Payable |
|
8.9
|
|
30.2
|
7.5
|
|
Accrued Taxes, Net |
|
7.0
|
|
42.7
|
(11.8)
|
|
Net Cash Flows from Operating Activities |
|
596.6
|
|
614.2
|
823.4
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(1,000.8)
|
|
(1,065.4)
|
(1,472.2)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
405.9
|
|
322.2
|
646.8
|
|
Cash and Cash Equivalents at Beginning of Period |
|
0.1
|
|
|
|
|
Cash and Cash Equivalents at End of Period |
|
0.1
|
|
0.1
|
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
168.9
|
|
153.2
|
148.6
|
|
Income Taxes |
|
5.7
|
|
(42.9)
|
(11.0)
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
230.0
|
|
177.8
|
225.5
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
230.0
|
|
177.8
|
225.5
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
444.2
|
|
652.7
|
1,070.4
|
|
Repayments of Long-term Debt |
|
88.7
|
|
392.1
|
401.8
|
|
Net Income (Loss) |
|
289.8
|
|
241.0
|
178.3
|
|
Retained Earnings |
|
2,046.8
|
|
1,757.0
|
|
|
AEP Texas Inc. [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Other Income (Expense) |
|
|
|
|
|
|
Net Income (Loss) |
|
289.8
|
|
241.0
|
178.3
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
289.8
|
|
241.0
|
178.3
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Net Income (Loss) |
|
$ 289.8
|
|
241.0
|
178.3
|
|
AEP Texas Inc. [Member] | Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
AEP Texas Inc. [Member] | Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
177.0
|
|
|
AEP Transmission Co [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
9.3
|
|
8.5
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
297.3
|
|
249.0
|
176.0
|
|
Amortization of Certain Securitized Assets |
|
0.0
|
|
0.0
|
0.0
|
|
Amortization of Regulatory Assets and Liabilities |
|
0.0
|
|
0.0
|
0.0
|
|
Total Depreciation and Amortization |
|
297.3
|
|
249.0
|
176.0
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
0.0
|
|
0.0
|
0.0
|
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
1,469.3
|
|
1,145.7
|
1,021.4
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
297.3
|
|
249.0
|
176.0
|
|
TOTAL EXPENSES |
|
660.0
|
|
564.2
|
454.2
|
|
OPERATING INCOME (LOSS) |
|
809.3
|
|
581.5
|
567.2
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
67.2
|
|
74.0
|
84.3
|
|
Interest Expense |
|
(141.2)
|
|
(127.8)
|
(97.4)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
735.8
|
|
530.1
|
557.1
|
|
Income Tax Expense (Benefit) |
|
144.1
|
|
106.7
|
117.4
|
|
Net Income (Loss) |
|
591.7
|
|
423.4
|
439.7
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
22.5
|
|
22.9
|
|
|
Total Accounts Receivable |
|
118.6
|
|
104.1
|
|
|
Accrued Tax Benefits |
|
5.6
|
|
9.9
|
|
|
TOTAL CURRENT ASSETS |
|
331.3
|
|
235.8
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
10,886.3
|
|
9,593.5
|
|
|
Other Property, Plant and Equipment |
|
427.4
|
|
329.5
|
|
|
Construction Work in Progress |
|
1,394.8
|
|
1,422.6
|
|
|
Total Property, Plant and Equipment |
|
12,708.5
|
|
11,345.6
|
|
|
Accumulated Depreciation and Amortization |
|
772.8
|
|
572.8
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
11,935.7
|
[1] |
10,772.8
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
Deferred Property Taxes |
|
245.7
|
|
220.1
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
257.4
|
|
237.4
|
|
|
TOTAL ASSETS |
|
12,524.4
|
[4] |
11,246.0
|
9,890.8
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
460.1
|
|
380.4
|
|
|
Affiliated Companies |
|
69.9
|
|
97.3
|
|
|
Accrued Taxes |
|
479.0
|
|
418.1
|
|
|
TOTAL CURRENT LIABILITIES |
|
1,296.9
|
|
1,137.5
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
962.9
|
|
906.9
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
644.1
|
[5] |
581.8
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
5,851.4
|
|
5,395.6
|
|
|
TOTAL LIABILITIES |
|
7,148.3
|
|
6,533.1
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
2,426.5
|
|
1,947.3
|
|
|
TOTAL MEMBER'S EQUITY |
|
5,376.1
|
|
4,712.9
|
4,009.5
|
3,569.8
|
TOTAL LIABILITIES AND EQUITY |
|
12,524.4
|
|
11,246.0
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
591.7
|
|
423.4
|
439.7
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
297.3
|
|
249.0
|
176.0
|
|
Deferred Income Taxes |
|
68.5
|
|
81.6
|
91.3
|
|
Allowance for Equity Funds Used During Construction |
|
(67.2)
|
|
(74.0)
|
(84.3)
|
|
Amortization of Deferred Property Taxes |
|
(25.6)
|
|
(26.6)
|
(35.6)
|
|
Change in Other Noncurrent Assets |
|
7.5
|
|
(8.2)
|
9.6
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
3.7
|
|
8.3
|
(8.1)
|
|
Accounts Receivable, Net |
|
(16.0)
|
|
(19.0)
|
(5.4)
|
|
Accounts Payable |
|
(2.2)
|
|
77.8
|
37.6
|
|
Accrued Taxes, Net |
|
67.2
|
|
62.7
|
90.8
|
|
Net Cash Flows from Operating Activities |
|
925.7
|
|
771.2
|
708.6
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(1,359.0)
|
|
(1,640.4)
|
(1,403.2)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
433.3
|
|
869.2
|
694.6
|
|
Net Increase (Decrease) in Cash and Cash Equivalents |
|
0.0
|
|
0.0
|
0.0
|
|
Cash and Cash Equivalents at Beginning of Period |
|
0.0
|
|
0.0
|
0.0
|
|
Cash and Cash Equivalents at End of Period |
|
0.0
|
|
0.0
|
0.0
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
132.9
|
|
119.7
|
90.6
|
|
Income Taxes |
|
65.7
|
|
22.9
|
1.5
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
358.7
|
|
311.9
|
472.7
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
358.7
|
|
311.9
|
472.7
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
443.7
|
|
519.5
|
688.0
|
|
Repayments of Long-term Debt |
|
50.0
|
|
0.0
|
85.0
|
|
Net Income (Loss) |
|
591.7
|
|
423.4
|
439.7
|
|
Retained Earnings |
|
2,426.5
|
|
1,947.3
|
|
|
AEP Transmission Co [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Other Income (Expense) |
|
|
|
|
|
|
Net Income (Loss) |
|
591.7
|
|
423.4
|
439.7
|
|
Equity [Abstract] |
|
|
|
|
|
|
TOTAL MEMBER'S EQUITY |
|
2,426.5
|
|
1,947.3
|
1,528.9
|
1,089.2
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
591.7
|
|
423.4
|
439.7
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Net Income (Loss) |
|
591.7
|
|
423.4
|
439.7
|
|
Appalachian Power Co [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
109.8
|
|
99.6
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
547.0
|
|
507.8
|
466.5
|
|
Amortization of Certain Securitized Assets |
|
0.0
|
|
0.0
|
0.0
|
|
Amortization of Regulatory Assets and Liabilities |
|
(0.8)
|
|
(0.3)
|
0.3
|
|
Total Depreciation and Amortization |
|
546.2
|
|
507.5
|
466.8
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
5.8
|
|
|
|
|
Restricted Cash |
|
17.6
|
|
16.9
|
|
|
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |
|
20.1
|
|
22.7
|
26.8
|
29.8
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
3,105.2
|
|
2,796.2
|
2,924.7
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
546.2
|
|
507.5
|
466.8
|
|
TOTAL EXPENSES |
|
2,555.8
|
|
2,239.6
|
2,527.4
|
|
OPERATING INCOME (LOSS) |
|
549.4
|
|
556.6
|
397.3
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
15.6
|
|
14.6
|
16.6
|
|
Interest Expense |
|
(214.0)
|
|
(217.6)
|
(205.0)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
371.0
|
|
374.0
|
228.3
|
|
Income Tax Expense (Benefit) |
|
22.1
|
|
4.3
|
(78.0)
|
|
Net Income (Loss) |
|
348.9
|
|
369.7
|
306.3
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
158.5
|
|
142.8
|
|
|
Total Accounts Receivable |
|
341.0
|
|
284.4
|
|
|
TOTAL CURRENT ASSETS |
|
925.3
|
|
674.1
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
4,322.4
|
|
3,900.5
|
|
|
Other Property, Plant and Equipment |
|
696.6
|
|
627.2
|
|
|
Construction Work in Progress |
|
469.9
|
|
484.6
|
|
|
Total Property, Plant and Equipment |
|
16,856.1
|
|
16,110.3
|
|
|
Accumulated Depreciation and Amortization |
|
5,051.8
|
|
4,716.2
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
11,804.3
|
|
11,394.1
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
1,359.3
|
|
1,247.0
|
|
|
TOTAL ASSETS |
|
14,088.9
|
|
13,315.2
|
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
262.2
|
|
212.0
|
|
|
Affiliated Companies |
|
118.6
|
|
97.1
|
|
|
Accrued Taxes |
|
119.7
|
|
109.9
|
|
|
TOTAL CURRENT LIABILITIES |
|
1,415.9
|
|
1,217.7
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
1,804.7
|
|
1,749.9
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
1,238.8
|
|
1,224.7
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
8,025.1
|
|
7,753.2
|
|
|
TOTAL LIABILITIES |
|
9,441.0
|
|
8,970.9
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
2,534.4
|
|
2,248.0
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
14,088.9
|
|
13,315.2
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
348.9
|
|
369.7
|
306.3
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
546.2
|
|
507.5
|
466.8
|
|
Deferred Income Taxes |
|
15.0
|
|
(26.2)
|
(126.2)
|
|
Allowance for Equity Funds Used During Construction |
|
(15.6)
|
|
(14.6)
|
(16.6)
|
|
Change in Other Noncurrent Assets |
|
(68.8)
|
|
(40.4)
|
(38.2)
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
35.6
|
|
11.2
|
(40.3)
|
|
Accounts Receivable, Net |
|
(53.3)
|
|
(30.2)
|
35.7
|
|
Accounts Payable |
|
36.8
|
|
(48.1)
|
37.7
|
|
Accrued Taxes, Net |
|
(16.2)
|
|
31.3
|
(10.2)
|
|
Net Cash Flows from Operating Activities |
|
611.7
|
|
712.0
|
661.4
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(826.5)
|
|
(757.9)
|
(837.4)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
212.2
|
|
41.8
|
173.0
|
|
Cash and Cash Equivalents at Beginning of Period |
|
5.8
|
|
|
|
|
Cash and Cash Equivalents at End of Period |
|
2.5
|
|
5.8
|
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
207.5
|
|
207.1
|
190.7
|
|
Income Taxes |
|
32.8
|
|
0.0
|
63.0
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
139.1
|
|
105.6
|
149.7
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
139.1
|
|
105.6
|
149.7
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
494.0
|
|
606.9
|
478.2
|
|
Repayments of Long-term Debt |
|
393.0
|
|
140.3
|
180.5
|
|
Net Income (Loss) |
|
348.9
|
|
369.7
|
306.3
|
|
Retained Earnings |
|
2,534.4
|
|
2,248.0
|
|
|
Appalachian Power Co [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Other Income (Expense) |
|
|
|
|
|
|
Net Income (Loss) |
|
348.9
|
|
369.7
|
306.3
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
348.9
|
|
369.7
|
306.3
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Net Income (Loss) |
|
$ 348.9
|
|
369.7
|
306.3
|
|
Appalachian Power Co [Member] | Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
Appalachian Power Co [Member] | Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Appalachian Power Co [Member] | Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
Appalachian Power Co [Member] | Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Appalachian Power Co [Member] | Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Appalachian Power Co [Member] | Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
Appalachian Power Co [Member] | Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Appalachian Power Co [Member] | Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
177.0
|
|
|
Indiana Michigan Power Co [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
175.2
|
|
175.8
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
424.9
|
|
393.3
|
330.6
|
|
Amortization of Certain Securitized Assets |
|
0.0
|
|
0.0
|
0.0
|
|
Amortization of Regulatory Assets and Liabilities |
|
21.1
|
|
18.3
|
20.0
|
|
Total Depreciation and Amortization |
|
446.0
|
|
411.6
|
350.6
|
|
Ohio Valley Electric Corporation - Barging and Other Transportation Services (43.47% Owned) |
|
54.0
|
|
60.8
|
63.4
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
3.3
|
|
2.0
|
2.4
|
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
2,326.7
|
|
2,241.8
|
2,306.7
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
446.0
|
|
411.6
|
350.6
|
|
TOTAL EXPENSES |
|
1,968.8
|
|
1,878.9
|
1,965.9
|
|
OPERATING INCOME (LOSS) |
|
357.9
|
|
362.9
|
340.8
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
12.8
|
|
11.5
|
19.4
|
|
Interest Expense |
|
(116.8)
|
|
(112.3)
|
(117.9)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
269.2
|
|
277.3
|
258.8
|
|
Income Tax Expense (Benefit) |
|
(10.6)
|
|
(7.5)
|
(10.6)
|
|
Net Income (Loss) |
|
279.8
|
|
284.8
|
269.4
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
40.6
|
|
44.0
|
|
|
Total Accounts Receivable |
|
121.2
|
|
97.0
|
|
|
Accrued Tax Benefits |
|
12.7
|
|
10.3
|
|
|
TOTAL CURRENT ASSETS |
|
439.4
|
|
418.8
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
1,783.1
|
|
1,696.4
|
|
|
Other Property, Plant and Equipment |
|
792.9
|
|
686.7
|
|
|
Construction Work in Progress |
|
302.8
|
|
362.4
|
|
|
Total Property, Plant and Equipment |
|
11,210.7
|
|
10,604.8
|
|
|
Accumulated Depreciation and Amortization |
|
3,899.8
|
|
3,552.5
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
7,310.9
|
|
7,052.3
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
4,657.9
|
|
4,167.2
|
|
|
TOTAL ASSETS |
|
12,408.2
|
|
11,638.3
|
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
174.4
|
|
153.2
|
|
|
Affiliated Companies |
|
94.9
|
|
80.5
|
|
|
Accrued Taxes |
|
106.5
|
|
102.5
|
|
|
TOTAL CURRENT LIABILITIES |
|
894.0
|
|
1,104.5
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
1,100.2
|
|
1,064.4
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
2,447.9
|
|
2,041.9
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
8,729.5
|
|
7,784.6
|
|
|
TOTAL LIABILITIES |
|
9,623.5
|
|
8,889.1
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
1,748.5
|
|
1,718.7
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
12,408.2
|
|
11,638.3
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
279.8
|
|
284.8
|
269.4
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
446.0
|
|
411.6
|
350.6
|
|
Deferred Income Taxes |
|
(38.0)
|
|
(16.2)
|
(52.7)
|
|
Allowance for Equity Funds Used During Construction |
|
(12.8)
|
|
(11.5)
|
(19.4)
|
|
Change in Other Noncurrent Assets |
|
(54.1)
|
|
6.1
|
8.3
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
7.5
|
|
45.0
|
33.7
|
|
Accounts Receivable, Net |
|
(22.3)
|
|
14.5
|
35.4
|
|
Accounts Payable |
|
42.3
|
|
(10.8)
|
3.6
|
|
Accrued Taxes, Net |
|
1.6
|
|
(20.2)
|
48.3
|
|
Net Cash Flows from Operating Activities |
|
733.7
|
|
776.3
|
685.2
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(633.1)
|
|
(648.9)
|
(720.1)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
(102.6)
|
|
(126.1)
|
34.5
|
|
Net Increase (Decrease) in Cash and Cash Equivalents |
|
(2.0)
|
|
1.3
|
(0.4)
|
|
Cash and Cash Equivalents at Beginning of Period |
|
3.3
|
|
2.0
|
2.4
|
|
Cash and Cash Equivalents at End of Period |
|
1.3
|
|
3.3
|
2.0
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
110.9
|
|
107.6
|
111.9
|
|
Income Taxes |
|
29.3
|
|
42.1
|
3.4
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
87.8
|
|
62.8
|
86.0
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
87.8
|
|
62.8
|
86.0
|
|
Acquisition of Nuclear Fuel Included in Current Liabilities as of December 31, |
|
0.0
|
|
33.4
|
0.1
|
|
Expected Reimbursement For Spent Nuclear Fuel Dry Cask Storage |
|
1.7
|
|
2.6
|
0.3
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
546.7
|
|
69.5
|
123.3
|
|
Repayments of Long-term Debt |
|
383.5
|
|
93.2
|
117.1
|
|
Net Income (Loss) |
|
279.8
|
|
284.8
|
269.4
|
|
Retained Earnings |
|
1,748.5
|
|
1,718.7
|
|
|
Indiana Michigan Power Co [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Other Income (Expense) |
|
|
|
|
|
|
Net Income (Loss) |
|
279.8
|
|
284.8
|
269.4
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
279.8
|
|
284.8
|
269.4
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Net Income (Loss) |
|
$ 279.8
|
|
284.8
|
269.4
|
|
Indiana Michigan Power Co [Member] | Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Indiana Michigan Power Co [Member] | Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
177.0
|
|
|
Ohio Power Co [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
74.1
|
|
66.9
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
301.1
|
|
275.0
|
229.4
|
|
Amortization of Certain Securitized Assets |
|
0.0
|
|
0.0
|
22.0
|
|
Amortization of Regulatory Assets and Liabilities |
|
2.2
|
|
1.6
|
(10.5)
|
|
Total Depreciation and Amortization |
|
303.3
|
|
276.6
|
240.9
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
7.4
|
|
|
|
|
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents |
|
3.0
|
|
7.4
|
3.7
|
$ 32.5
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
2,899.1
|
|
2,749.1
|
2,797.6
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
303.3
|
|
276.6
|
240.9
|
|
TOTAL EXPENSES |
|
2,513.9
|
|
2,345.4
|
2,396.4
|
|
OPERATING INCOME (LOSS) |
|
385.2
|
|
403.7
|
401.2
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
10.8
|
|
12.5
|
18.2
|
|
Interest Expense |
|
(124.4)
|
|
(117.2)
|
(106.2)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
288.0
|
|
316.6
|
332.0
|
|
Income Tax Expense (Benefit) |
|
34.4
|
|
45.2
|
34.9
|
|
Net Income (Loss) |
|
253.6
|
|
271.4
|
297.1
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
71.6
|
|
50.0
|
|
|
Total Accounts Receivable |
|
150.0
|
|
133.2
|
|
|
TOTAL CURRENT ASSETS |
|
327.5
|
|
256.3
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
2,992.8
|
|
2,831.9
|
|
|
Other Property, Plant and Equipment |
|
992.9
|
|
899.6
|
|
|
Construction Work in Progress |
|
365.0
|
|
362.3
|
|
|
Total Property, Plant and Equipment |
|
10,421.3
|
|
9,802.1
|
|
|
Accumulated Depreciation and Amortization |
|
2,458.3
|
|
2,350.0
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
7,963.0
|
|
7,452.1
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
975.3
|
|
1,002.0
|
|
|
TOTAL ASSETS |
|
9,265.8
|
|
8,710.4
|
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
213.5
|
|
181.0
|
|
|
Affiliated Companies |
|
125.4
|
|
118.4
|
|
|
Accrued Taxes |
|
702.4
|
|
631.0
|
|
|
TOTAL CURRENT LIABILITIES |
|
1,245.7
|
|
1,906.2
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
1,000.9
|
|
955.1
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
1,020.9
|
|
1,005.2
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
5,173.8
|
|
4,111.5
|
|
|
TOTAL LIABILITIES |
|
6,419.5
|
|
6,017.7
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
1,686.3
|
|
1,532.7
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
9,265.8
|
|
8,710.4
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
253.6
|
|
271.4
|
297.1
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
303.3
|
|
276.6
|
240.9
|
|
Deferred Income Taxes |
|
30.7
|
|
77.2
|
43.8
|
|
Allowance for Equity Funds Used During Construction |
|
(10.8)
|
|
(12.5)
|
(18.2)
|
|
Amortization of Deferred Property Taxes |
|
(35.3)
|
|
(16.6)
|
(33.7)
|
|
Change in Other Noncurrent Assets |
|
(40.7)
|
|
(49.4)
|
(35.3)
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
6.9
|
|
(66.4)
|
(93.2)
|
|
Accounts Receivable, Net |
|
(11.8)
|
|
4.2
|
75.0
|
|
Accounts Payable |
|
19.1
|
|
10.3
|
0.4
|
|
Accrued Taxes, Net |
|
78.2
|
|
43.3
|
38.7
|
|
Net Cash Flows from Operating Activities |
|
575.6
|
|
410.9
|
421.2
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(753.3)
|
|
(791.0)
|
(744.1)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
173.3
|
|
383.8
|
294.1
|
|
Cash and Cash Equivalents at Beginning of Period |
|
7.4
|
|
|
|
|
Cash and Cash Equivalents at End of Period |
|
3.0
|
|
7.4
|
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
119.5
|
|
111.2
|
100.6
|
|
Income Taxes |
|
(7.9)
|
|
(26.9)
|
7.3
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
97.1
|
|
76.7
|
125.9
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
97.1
|
|
76.7
|
125.9
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
1,037.1
|
|
347.0
|
444.3
|
|
Repayments of Long-term Debt |
|
500.1
|
|
0.1
|
80.3
|
|
Net Income (Loss) |
|
253.6
|
|
271.4
|
297.1
|
|
Retained Earnings |
|
1,686.3
|
|
1,532.7
|
|
|
Ohio Power Co [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Other Income (Expense) |
|
|
|
|
|
|
Net Income (Loss) |
|
253.6
|
|
271.4
|
297.1
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
253.6
|
|
271.4
|
297.1
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Net Income (Loss) |
|
$ 253.6
|
|
271.4
|
297.1
|
|
Ohio Power Co [Member] | Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
Ohio Power Co [Member] | Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Ohio Power Co [Member] | Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
Ohio Power Co [Member] | Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Ohio Power Co [Member] | Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Ohio Power Co [Member] | Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
Ohio Power Co [Member] | Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Ohio Power Co [Member] | Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
177.0
|
|
|
Public Service Co Of Oklahoma [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
56.2
|
|
54.0
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
185.9
|
|
171.9
|
162.5
|
|
Amortization of Certain Securitized Assets |
|
0.0
|
|
0.0
|
0.0
|
|
Amortization of Regulatory Assets and Liabilities |
|
10.7
|
|
1.6
|
7.0
|
|
Total Depreciation and Amortization |
|
196.6
|
|
173.5
|
169.5
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
2.6
|
|
1.5
|
2.0
|
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
1,474.4
|
|
1,266.1
|
1,481.8
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
196.6
|
|
173.5
|
169.5
|
|
TOTAL EXPENSES |
|
1,281.5
|
|
1,090.2
|
1,282.5
|
|
OPERATING INCOME (LOSS) |
|
192.9
|
|
175.9
|
199.3
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
2.4
|
|
4.0
|
2.7
|
|
Interest Expense |
|
(62.9)
|
|
(60.3)
|
(66.5)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
145.2
|
|
128.2
|
145.1
|
|
Income Tax Expense (Benefit) |
|
4.1
|
|
5.2
|
7.5
|
|
Net Income (Loss) |
|
141.1
|
|
123.0
|
137.6
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
41.5
|
|
30.8
|
|
|
Total Accounts Receivable |
|
77.1
|
|
48.4
|
|
|
Accrued Tax Benefits |
|
17.6
|
|
10.9
|
|
|
TOTAL CURRENT ASSETS |
|
386.8
|
|
181.3
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
1,107.7
|
|
1,069.9
|
|
|
Other Property, Plant and Equipment |
|
437.0
|
|
393.3
|
|
|
Construction Work in Progress |
|
156.0
|
|
128.7
|
|
|
Total Property, Plant and Equipment |
|
6,508.0
|
|
5,925.6
|
|
|
Accumulated Depreciation and Amortization |
|
1,705.2
|
|
1,605.6
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
4,802.8
|
|
4,320.0
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
1,209.4
|
|
489.4
|
|
|
TOTAL ASSETS |
|
6,399.0
|
|
4,990.7
|
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
157.4
|
|
107.0
|
|
|
Affiliated Companies |
|
51.0
|
|
43.4
|
|
|
Accrued Taxes |
|
27.0
|
|
26.8
|
|
|
TOTAL CURRENT LIABILITIES |
|
562.7
|
|
478.6
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
782.3
|
|
688.5
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
835.3
|
|
802.2
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
3,544.7
|
|
2,966.5
|
|
|
TOTAL LIABILITIES |
|
4,107.4
|
|
3,445.1
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
1,095.4
|
|
974.3
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
6,399.0
|
|
4,990.7
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
141.1
|
|
123.0
|
137.6
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
196.6
|
|
173.5
|
169.5
|
|
Deferred Income Taxes |
|
113.9
|
|
17.0
|
(18.2)
|
|
Allowance for Equity Funds Used During Construction |
|
(2.4)
|
|
(4.0)
|
(2.7)
|
|
Change in Other Noncurrent Assets |
|
(18.3)
|
|
(17.9)
|
5.7
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
4.4
|
|
1.6
|
(7.3)
|
|
Accounts Receivable, Net |
|
(28.7)
|
|
1.4
|
15.4
|
|
Accounts Payable |
|
34.2
|
|
(29.5)
|
7.0
|
|
Accrued Taxes, Net |
|
(6.5)
|
|
3.6
|
3.9
|
|
Net Cash Flows from Operating Activities |
|
(433.3)
|
|
157.0
|
350.3
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(626.7)
|
|
(295.1)
|
(328.1)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
1,058.7
|
|
139.2
|
(22.7)
|
|
Net Increase (Decrease) in Cash and Cash Equivalents |
|
(1.3)
|
|
1.1
|
(0.5)
|
|
Cash and Cash Equivalents at Beginning of Period |
|
2.6
|
|
1.5
|
2.0
|
|
Cash and Cash Equivalents at End of Period |
|
1.3
|
|
2.6
|
1.5
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
57.0
|
|
59.1
|
61.1
|
|
Income Taxes |
|
(102.9)
|
|
(11.8)
|
22.4
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
56.8
|
|
35.5
|
46.0
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
56.8
|
|
35.5
|
46.0
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
1,290.0
|
|
0.0
|
349.5
|
|
Repayments of Long-term Debt |
|
750.5
|
|
13.2
|
250.5
|
|
Net Income (Loss) |
|
141.1
|
|
123.0
|
137.6
|
|
Retained Earnings |
|
1,095.4
|
|
974.3
|
|
|
Public Service Co Of Oklahoma [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Other Income (Expense) |
|
|
|
|
|
|
Net Income (Loss) |
|
141.1
|
|
123.0
|
137.6
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
141.1
|
|
123.0
|
137.6
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Net Income (Loss) |
|
$ 141.1
|
|
123.0
|
137.6
|
|
Public Service Co Of Oklahoma [Member] | Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Public Service Co Of Oklahoma [Member] | Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
177.0
|
|
|
Southwestern Electric Power Co [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
81.9
|
|
95.8
|
|
|
Supplementary Information |
|
|
|
|
|
|
Depreciation and Amortization of Property, Plant and Equipment |
|
292.9
|
|
271.2
|
247.9
|
|
Amortization of Certain Securitized Assets |
|
0.0
|
|
0.0
|
0.0
|
|
Amortization of Regulatory Assets and Liabilities |
|
2.1
|
|
1.5
|
1.2
|
|
Total Depreciation and Amortization |
|
295.0
|
|
272.7
|
249.1
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
13.2
|
|
1.6
|
24.5
|
|
Amounts Attributable to AEP Common Shareholders |
|
|
|
|
|
|
Net Income (Loss) Attributable to Noncontrolling Interests |
|
3.1
|
|
2.9
|
3.6
|
|
Net Income (Loss) |
|
239.0
|
|
180.8
|
158.6
|
|
Revenues |
|
|
|
|
|
|
TOTAL REVENUES |
|
2,131.8
|
|
1,738.5
|
1,750.9
|
|
Expenses |
|
|
|
|
|
|
Depreciation and Amortization |
|
295.0
|
|
272.7
|
249.1
|
|
TOTAL EXPENSES |
|
1,792.3
|
|
1,448.0
|
1,495.2
|
|
OPERATING INCOME (LOSS) |
|
339.5
|
|
290.5
|
255.7
|
|
Other Income (Expense) |
|
|
|
|
|
|
Allowance for Equity Funds Used During Construction |
|
7.0
|
|
7.7
|
6.8
|
|
Interest Expense |
|
(125.9)
|
|
(118.5)
|
(119.1)
|
|
INCOME BEFORE INCOME TAX EXPENSE (BENEFIT) AND EQUITY EARNINGS (LOSS) |
|
238.1
|
|
190.2
|
154.5
|
|
Income Tax Expense (Benefit) |
|
(0.6)
|
|
9.4
|
(4.7)
|
|
Net Income (Loss) |
|
242.1
|
|
183.7
|
162.2
|
|
Accounts Receivable: |
|
|
|
|
|
|
Customers |
|
35.8
|
|
27.1
|
|
|
Total Accounts Receivable |
|
86.4
|
|
64.9
|
|
|
Accrued Tax Benefits |
|
17.8
|
|
29.9
|
|
|
TOTAL CURRENT ASSETS |
|
668.5
|
|
428.0
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Transmission |
|
2,316.9
|
|
2,165.7
|
|
|
Other Property, Plant and Equipment |
|
764.0
|
|
788.8
|
|
|
Construction Work in Progress |
|
240.7
|
|
228.3
|
|
|
Total Property, Plant and Equipment |
|
10,570.4
|
|
10,246.7
|
|
|
Accumulated Depreciation and Amortization |
|
3,170.3
|
|
3,158.5
|
|
|
TOTAL PROPERTY, PLANT AND EQUIPMENT - NET |
|
7,400.1
|
|
7,088.2
|
|
|
Other Noncurrent Assets |
|
|
|
|
|
|
TOTAL OTHER NONCURRENT ASSETS |
|
1,257.1
|
|
637.9
|
|
|
TOTAL ASSETS |
|
9,325.7
|
|
8,154.1
|
|
|
Current Liabilities |
|
|
|
|
|
|
Accounts Payable |
|
163.6
|
|
135.9
|
|
|
Affiliated Companies |
|
61.4
|
|
43.0
|
|
|
Accrued Taxes |
|
44.3
|
|
41.0
|
|
|
TOTAL CURRENT LIABILITIES |
|
538.7
|
|
763.6
|
|
|
Liabilities, Noncurrent |
|
|
|
|
|
|
Deferred Income Taxes |
|
1,087.6
|
|
1,017.6
|
|
|
Regulatory Liabilities and Deferred Investment Tax Credits |
|
806.9
|
|
863.4
|
|
|
TOTAL NONCURRENT LIABILITIES |
|
5,637.2
|
|
4,762.8
|
|
|
TOTAL LIABILITIES |
|
6,175.9
|
|
5,526.4
|
|
|
Equity [Abstract] |
|
|
|
|
|
|
Retained Earnings |
|
2,050.9
|
|
1,811.9
|
|
|
TOTAL LIABILITIES AND EQUITY |
|
9,325.7
|
|
8,154.1
|
|
|
Operating Activites |
|
|
|
|
|
|
Net Income (Loss) |
|
242.1
|
|
183.7
|
162.2
|
|
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities: |
|
|
|
|
|
|
Depreciation and Amortization |
|
295.0
|
|
272.7
|
249.1
|
|
Deferred Income Taxes |
|
16.6
|
|
32.4
|
(11.0)
|
|
Allowance for Equity Funds Used During Construction |
|
(7.0)
|
|
(7.7)
|
(6.8)
|
|
Change in Other Noncurrent Assets |
|
41.9
|
|
16.1
|
2.7
|
|
Increase (Decrease) in Other Noncurrent Liabilities |
|
(1.1)
|
|
25.2
|
2.7
|
|
Accounts Receivable, Net |
|
(21.5)
|
|
7.3
|
0.0
|
|
Accounts Payable |
|
22.0
|
|
11.1
|
(28.4)
|
|
Accrued Taxes, Net |
|
15.4
|
|
(23.1)
|
(3.2)
|
|
Net Cash Flows from Operating Activities |
|
96.8
|
|
356.3
|
339.8
|
|
Investing Activities |
|
|
|
|
|
|
Net Cash Flows Used for Investing Activities |
|
(920.7)
|
|
(392.6)
|
(330.2)
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Net Cash Flows from Financing Activities |
|
861.9
|
|
47.9
|
(32.5)
|
|
Net Increase (Decrease) in Cash and Cash Equivalents |
|
38.0
|
|
11.6
|
(22.9)
|
|
Cash and Cash Equivalents at Beginning of Period |
|
13.2
|
|
1.6
|
24.5
|
|
Cash and Cash Equivalents at End of Period |
|
51.2
|
|
13.2
|
1.6
|
|
Cash Paid (Received) for: |
|
|
|
|
|
|
Cash Paid for Interest, Net of Capitalized Amounts |
|
116.5
|
|
110.7
|
111.1
|
|
Income Taxes |
|
(28.8)
|
|
4.3
|
8.6
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Construction in Progress Expenditures Incurred but Not yet Paid |
|
69.0
|
|
46.0
|
69.1
|
|
Construction Expenditures Included in Current Liabilities as of December 31, |
|
69.0
|
|
46.0
|
69.1
|
|
Organization and Summary of Significant Accounting Policies (Textuals) |
|
|
|
|
|
|
Issuance of Long-term Debt |
|
1,137.6
|
|
0.0
|
0.0
|
|
Repayments of Long-term Debt |
|
381.2
|
|
21.2
|
59.7
|
|
Income (Loss) from Equity Method Investment |
|
3.4
|
|
2.9
|
3.0
|
|
Net Income (Loss) |
|
242.1
|
|
183.7
|
162.2
|
|
Retained Earnings |
|
2,050.9
|
|
1,811.9
|
|
|
Southwestern Electric Power Co [Member] | Retained Earnings [Member] |
|
|
|
|
|
|
Amounts Attributable to AEP Common Shareholders |
|
|
|
|
|
|
Net Income (Loss) |
|
$ 239.0
|
|
180.8
|
$ 158.6
|
|
Southwestern Electric Power Co [Member] | Pension Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
25.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Pension Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Pension Plans [Member] | Other Investments [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
15.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Pension Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Other Postretirement Benefit Plans [Member] | Equity [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
59.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Other Postretirement Benefit Plans [Member] | Fixed Income [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
40.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Other Postretirement Benefit Plans [Member] | Cash and Cash Equivalents [Member] |
|
|
|
|
|
|
Target Asset Allocations |
|
|
|
|
|
|
Target Asset Allocation |
|
1.00%
|
|
|
|
|
Southwestern Electric Power Co [Member] | Pension and Other Postretirement Benefit Plans [Member] |
|
|
|
|
|
|
Supplementary Information |
|
|
|
|
|
|
Securities Loaned |
|
$ 137.0
|
|
$ 177.0
|
|
|
Restricted Stock Units and Performance Share Units [Member] |
|
|
|
|
|
|
Weighted Average Dilutive Effect of: |
|
|
|
|
|
|
Weighted Average Dilutive Effect of Shares |
|
1,300,000
|
|
1,500,000
|
1,600,000
|
|
Dilutive Securities, Effect on Basic Earnings Per Share |
|
$ (0.01)
|
|
$ (0.02)
|
$ (0.01)
|
|
Revenues [Member] | AEP Texas Inc. [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
[6] |
43.00%
|
|
46.00%
|
48.00%
|
|
Revenues [Member] | AEP Transmission Co [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
79.00%
|
|
78.00%
|
79.00%
|
|
Revenues [Member] | Appalachian Power Co [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
10.00%
|
|
10.00%
|
10.00%
|
|
Revenues [Member] | Indiana Michigan Power Co [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
10.00%
|
|
10.00%
|
10.00%
|
|
Revenues [Member] | Ohio Power Co [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
10.00%
|
|
10.00%
|
10.00%
|
|
Revenues [Member] | Public Service Co Of Oklahoma [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
10.00%
|
|
10.00%
|
10.00%
|
|
Revenues [Member] | Southwestern Electric Power Co [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
10.00%
|
|
10.00%
|
10.00%
|
|
Accounts Receivable [Member] | AEP Texas Inc. [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
[6] |
41.00%
|
|
40.00%
|
43.00%
|
|
Accounts Receivable [Member] | AEP Transmission Co [Member] | Credit Concentration Risk |
|
|
|
|
|
|
Risks and Uncertainties |
|
|
|
|
|
|
Percentage of Significant Customers Concentration Risk |
|
81.00%
|
|
78.00%
|
78.00%
|
|
Noncontrolling Interest [Member] | Dry Lake Solar Project [Member] |
|
|
|
|
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Noncash Contribution of Assets by Noncontrolling Interest |
|
$ 35.3
|
|
$ 0.0
|
$ 0.0
|
|
Noncontrolling Interest [Member] | Sempra Renewables LLC and Santa Rita East Acquisition [Member] |
|
|
|
|
|
|
Noncash Investing and Financing Activities: |
|
|
|
|
|
|
Noncash Contribution of Assets by Noncontrolling Interest |
|
0.0
|
|
0.0
|
$ 253.4
|
|
Sabine Mining Co [Member] | Southwestern Electric Power Co [Member] |
|
|
|
|
|
|
Materials and Supplies |
|
12.0
|
|
23.3
|
|
|
Cash, Cash Equivalents and Restricted Cash |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
10.1
|
|
|
|
|
Property, Plant and Equipment |
|
|
|
|
|
|
Other Property, Plant and Equipment |
|
219.9
|
|
223.7
|
|
|
Accumulated Depreciation and Amortization |
|
168.1
|
|
126.5
|
|
|
Net Cash Provided by (Used in) Financing Activities |
|
|
|
|
|
|
Cash and Cash Equivalents at Beginning of Period |
|
10.1
|
|
|
|
|
Cash and Cash Equivalents at End of Period |
|
$ 49.9
|
|
$ 10.1
|
|
|
|
|