Business Segments (Details) - USD ($)
$ in Millions |
12 Months Ended |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
$ 18,982.3
|
|
$ 19,639.5
|
|
$ 16,792.0
|
|
| Total Revenues |
|
18,982.3
|
|
19,639.5
|
|
16,792.0
|
|
| Loss on the Expected Sale of KPCo |
|
|
|
363.3
|
|
|
|
| Asset Impairments and Other Related Charges |
|
85.6
|
|
48.8
|
|
11.6
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
|
0.0
|
|
(37.0)
|
|
0.0
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
|
92.7
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
|
|
|
(116.3)
|
|
|
|
| Depreciation and Amortization |
|
3,090.4
|
|
3,202.8
|
|
2,825.7
|
|
| Allowance for Equity Funds Used During Construction |
|
174.9
|
|
133.7
|
|
139.7
|
|
| Interest Expense |
|
1,806.9
|
|
1,396.1
|
|
1,199.1
|
|
| Income Tax Expense (Benefit) |
|
54.6
|
|
5.4
|
|
115.5
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
|
58.5
|
|
(109.4)
|
|
91.7
|
|
| Net Income (Loss) |
|
2,212.6
|
|
2,305.6
|
|
2,488.1
|
|
| Gross Property Additions |
|
7,533.5
|
|
7,879.0
|
|
6,426.8
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Property, Plant and Equipment, Gross, Period Increase (Decrease) |
|
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
|
|
|
|
| Total Assets |
|
96,684.0
|
|
93,403.3
|
|
|
|
| Investments in Equity Method Investees |
|
1,073.6
|
|
1,276.7
|
|
1,447.5
|
|
| Long-term Debt Due Within One Year |
|
2,490.5
|
|
2,486.4
|
|
|
|
| Long-term Debt |
|
37,652.7
|
|
34,314.6
|
|
|
|
| Total Long-term Debt Outstanding |
|
40,143.2
|
|
36,801.0
|
|
|
|
| Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
0.0
|
|
0.0
|
|
0.0
|
|
| AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
1,720.6
|
|
1,651.7
|
|
1,410.9
|
|
| Total Revenues |
|
1,672.0
|
|
1,624.5
|
|
1,469.3
|
|
| Depreciation and Amortization |
|
393.8
|
|
346.2
|
|
297.3
|
|
| Interest Income |
|
7.0
|
|
1.6
|
|
0.5
|
|
| Allowance for Equity Funds Used During Construction |
|
83.2
|
|
70.7
|
|
67.2
|
|
| Interest Expense |
|
194.5
|
|
162.7
|
|
141.2
|
|
| Income Tax Expense (Benefit) |
|
147.1
|
|
169.1
|
|
144.1
|
|
| Net Income (Loss) |
|
614.2
|
|
594.2
|
|
591.7
|
|
| Gross Property Additions |
|
1,503.1
|
|
1,468.3
|
|
1,442.7
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Property, Plant and Equipment, Gross, Period Increase (Decrease) |
|
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
|
|
|
|
| Total Assets |
|
15,072.5
|
|
13,814.2
|
|
|
|
| Long-term Debt Due Within One Year |
|
95.0
|
|
60.0
|
|
|
|
| Long-term Debt |
|
5,319.4
|
|
4,722.8
|
|
|
|
| Total Long-term Debt Outstanding |
|
5,414.4
|
|
4,782.8
|
|
|
|
| AEP Transmission Co [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
1,463.4
|
|
1,354.5
|
|
1,171.5
|
|
| Transmission Revenues |
|
1,317.8
|
|
1,283.8
|
|
1,153.9
|
|
| Vertically Integrated Utilities [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
11,303.7
|
|
11,292.8
|
|
9,852.2
|
|
| Transmission and Distribution Utilities Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
5,677.2
|
|
5,489.6
|
|
4,464.1
|
|
| Transmission [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
363.3
|
|
354.9
|
|
317.8
|
|
| Transmission Revenues |
|
354.2
|
|
340.9
|
|
315.1
|
|
| Generation and Marketing Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
1,543.3
|
|
2,448.9
|
|
2,108.3
|
|
| Other Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
458.1
|
|
408.2
|
|
367.4
|
|
| Total Revenues |
|
(355.4)
|
[1],[2] |
360.3
|
[3],[4] |
227.6
|
[5],[6] |
| Other Revenues [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
|
|
(0.2)
|
|
0.3
|
|
| Total Revenues |
|
0.0
|
[7] |
0.0
|
[8] |
0.0
|
[9] |
| Reconciling Adjustments [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Total Revenues |
|
(1,709.2)
|
|
(1,603.8)
|
|
(1,461.5)
|
|
| Loss on the Expected Sale of KPCo |
|
|
|
0.0
|
|
|
|
| Asset Impairments and Other Related Charges |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
|
|
|
0.0
|
|
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
|
0.0
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
|
|
|
0.0
|
|
|
|
| Depreciation and Amortization |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Interest Expense |
|
(194.5)
|
|
(112.8)
|
|
(18.7)
|
|
| Income Tax Expense (Benefit) |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Net Income (Loss) |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Gross Property Additions |
|
1.4
|
|
(28.8)
|
|
(29.2)
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
[10] |
(4,324.6)
|
|
(5,783.0)
|
|
|
|
| Investments in Equity Method Investees |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Reconciling Adjustments [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
[11] |
(1,709.2)
|
|
(1,603.8)
|
|
(1,461.5)
|
|
| Reconciling Adjustments [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Depreciation and Amortization |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Interest Income |
[12] |
(214.8)
|
|
(176.9)
|
|
(157.7)
|
|
| Allowance for Equity Funds Used During Construction |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Interest Expense |
[12] |
(214.8)
|
|
(176.9)
|
|
(157.7)
|
|
| Income Tax Expense (Benefit) |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Net Income (Loss) |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Gross Property Additions |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Transmission Revenues |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
[13] |
(5,534.7)
|
|
(4,878.8)
|
|
|
|
| Reconciling Adjustments [Member] | AEP Transmission Co [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Transmission Revenues |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Reconciling Adjustments [Member] | Other Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
(15.3)
|
[1],[2] |
(9.1)
|
[3],[4] |
(10.7)
|
[5],[6] |
| Reconciling Adjustments [Member] | Other Revenues [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
|
|
0.0
|
|
0.0
|
|
| Vertically Integrated Utilities [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
11,449.5
|
|
11,477.5
|
|
9,998.5
|
|
| Loss on the Expected Sale of KPCo |
|
|
|
0.0
|
|
|
|
| Asset Impairments and Other Related Charges |
|
85.6
|
|
24.9
|
|
11.6
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
|
|
|
(37.0)
|
|
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
|
0.0
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
|
|
|
0.0
|
|
|
|
| Depreciation and Amortization |
|
1,876.4
|
|
2,007.2
|
|
1,747.6
|
|
| Interest Expense |
|
764.5
|
|
650.9
|
|
574.2
|
|
| Income Tax Expense (Benefit) |
|
(45.2)
|
|
(93.8)
|
|
(11.2)
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
|
1.4
|
|
1.4
|
|
3.4
|
|
| Net Income (Loss) |
|
1,093.9
|
|
1,296.2
|
|
1,116.7
|
|
| Gross Property Additions |
|
3,486.8
|
|
4,164.6
|
|
2,963.1
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
|
51,802.1
|
|
49,761.8
|
|
|
|
| Investments in Equity Method Investees |
|
10.0
|
|
10.1
|
|
33.5
|
|
| Vertically Integrated Utilities [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
145.8
|
|
184.7
|
|
146.3
|
|
| Vertically Integrated Utilities [Member] | Vertically Integrated Utilities [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
11,303.7
|
|
11,292.8
|
|
9,852.2
|
|
| Vertically Integrated Utilities [Member] | Other Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
24.6
|
[1],[2] |
0.4
|
[3],[4] |
(0.5)
|
[5],[6] |
| Transmission and Distribution Companies [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
5,713.3
|
|
5,512.0
|
|
4,492.9
|
|
| Loss on the Expected Sale of KPCo |
|
|
|
0.0
|
|
|
|
| Asset Impairments and Other Related Charges |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
|
|
|
0.0
|
|
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
|
0.0
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
|
|
|
0.0
|
|
|
|
| Depreciation and Amortization |
|
784.7
|
|
746.7
|
|
690.3
|
|
| Interest Expense |
|
363.6
|
|
328.0
|
|
300.9
|
|
| Income Tax Expense (Benefit) |
|
140.2
|
|
116.9
|
|
77.5
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
|
0.0
|
|
0.6
|
|
0.0
|
|
| Net Income (Loss) |
|
698.7
|
|
595.7
|
|
543.4
|
|
| Gross Property Additions |
|
2,467.4
|
|
2,177.3
|
|
1,766.0
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
|
24,838.4
|
|
22,920.2
|
|
|
|
| Investments in Equity Method Investees |
|
3.0
|
|
3.0
|
|
2.5
|
|
| Transmission and Distribution Companies [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
36.1
|
|
22.4
|
|
28.8
|
|
| Transmission and Distribution Companies [Member] | Transmission and Distribution Utilities Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
5,677.2
|
|
5,489.6
|
|
4,464.1
|
|
| Transmission and Distribution Companies [Member] | Other Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
24.0
|
[1],[2] |
18.6
|
[3],[4] |
19.0
|
[5],[6] |
| AEP Transmission Holdco |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
1,728.5
|
|
1,677.0
|
|
1,526.2
|
|
| Loss on the Expected Sale of KPCo |
|
|
|
0.0
|
|
|
|
| Asset Impairments and Other Related Charges |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
|
|
|
0.0
|
|
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
|
0.0
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
|
|
|
0.0
|
|
|
|
| Depreciation and Amortization |
|
402.6
|
|
355.0
|
|
306.0
|
|
| Interest Expense |
|
202.6
|
|
169.3
|
|
146.3
|
|
| Income Tax Expense (Benefit) |
|
166.0
|
|
193.6
|
|
159.6
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
|
82.9
|
|
83.4
|
|
75.0
|
|
| Net Income (Loss) |
|
706.7
|
|
676.8
|
|
682.0
|
|
| Gross Property Additions |
|
1,528.7
|
|
1,470.8
|
|
1,468.6
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
|
16,575.6
|
|
15,215.8
|
|
|
|
| Investments in Equity Method Investees |
|
905.8
|
|
858.3
|
|
830.4
|
|
| AEP Transmission Holdco | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
1,331.1
|
|
1,319.5
|
|
1,175.1
|
|
| AEP Transmission Holdco | Transmission [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
397.4
|
|
357.5
|
|
351.1
|
|
| Generation and Marketing [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
1,632.2
|
|
2,466.9
|
|
2,163.7
|
|
| Loss on the Expected Sale of KPCo |
|
|
|
0.0
|
|
|
|
| Asset Impairments and Other Related Charges |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
|
|
|
0.0
|
|
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
|
92.7
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
|
|
|
(116.3)
|
|
|
|
| Depreciation and Amortization |
|
42.7
|
|
93.0
|
|
80.9
|
|
| Interest Expense |
|
76.0
|
|
51.8
|
|
15.6
|
|
| Income Tax Expense (Benefit) |
|
(122.9)
|
|
(83.1)
|
|
(48.8)
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
|
(16.5)
|
|
(192.4)
|
|
(10.6)
|
|
| Net Income (Loss) |
|
(29.1)
|
|
274.5
|
|
210.2
|
|
| Gross Property Additions |
|
12.6
|
|
69.2
|
|
232.8
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
|
2,598.5
|
|
4,520.1
|
|
|
|
| Investments in Equity Method Investees |
|
100.6
|
|
337.6
|
|
487.8
|
|
| Generation and Marketing [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
88.9
|
|
18.0
|
|
55.4
|
|
| Generation and Marketing [Member] | Generation and Marketing Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
1,543.3
|
|
2,448.9
|
|
2,108.3
|
|
| Generation and Marketing [Member] | Other Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
(404.5)
|
[1],[2] |
341.3
|
[3],[4] |
209.1
|
[5],[6] |
| Other Segments [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
[14] |
168.0
|
|
109.9
|
|
72.2
|
|
| Loss on the Expected Sale of KPCo |
[14] |
|
|
363.3
|
|
|
|
| Asset Impairments and Other Related Charges |
[14] |
0.0
|
|
23.9
|
|
0.0
|
|
| Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset |
[14] |
|
|
0.0
|
|
|
|
| Loss on the Sale of the Competitive Contracted Renewables Portfolio |
[14] |
0.0
|
|
|
|
|
|
| Gain (Loss) on Disposition Assets |
[14] |
|
|
0.0
|
|
|
|
| Depreciation and Amortization |
[14] |
(16.0)
|
|
0.9
|
|
0.9
|
|
| Interest Expense |
[14] |
594.7
|
|
308.9
|
|
180.8
|
|
| Income Tax Expense (Benefit) |
[14] |
(83.5)
|
|
(128.2)
|
|
(61.6)
|
|
| Equity Earnings (Loss) of Unconsolidated Subsidiaries |
[14] |
(9.3)
|
|
(2.4)
|
|
23.9
|
|
| Net Income (Loss) |
[14] |
(257.6)
|
|
(537.6)
|
|
(64.2)
|
|
| Gross Property Additions |
[14] |
36.6
|
|
25.9
|
|
25.5
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
[14],[15] |
5,194.0
|
|
6,768.4
|
|
|
|
| Investments in Equity Method Investees |
[14] |
54.2
|
|
67.7
|
|
93.3
|
|
| Other Segments [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
[14] |
107.3
|
|
59.2
|
|
55.9
|
|
| Other Segments [Member] | Other Revenues [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
[14] |
60.7
|
|
50.7
|
|
16.3
|
|
| State Transcos [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
1,672.0
|
|
1,624.5
|
|
1,469.3
|
|
| Depreciation and Amortization |
|
393.8
|
|
346.2
|
|
297.3
|
|
| Interest Income |
|
3.8
|
|
0.7
|
|
0.1
|
|
| Allowance for Equity Funds Used During Construction |
|
83.2
|
|
70.7
|
|
67.2
|
|
| Interest Expense |
|
194.2
|
|
162.5
|
|
141.2
|
|
| Income Tax Expense (Benefit) |
|
145.7
|
|
169.1
|
|
144.1
|
|
| Net Income (Loss) |
|
612.9
|
|
594.2
|
|
591.5
|
|
| Gross Property Additions |
|
1,503.1
|
|
1,468.3
|
|
1,442.7
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
|
15,120.6
|
|
13,875.6
|
|
|
|
| State Transcos [Member] | AEP Transmission Co [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Transmission Revenues |
|
1,317.8
|
|
1,283.8
|
|
1,153.9
|
|
| State Transcos [Member] | Transmission [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Transmission Revenues |
|
354.2
|
|
340.9
|
|
315.1
|
|
| State Transcos [Member] | Other Revenues [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
|
|
(0.2)
|
|
0.3
|
|
| AEPTCo Parent [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Total Revenues |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Depreciation and Amortization |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Interest Income |
|
218.0
|
|
177.8
|
|
158.1
|
|
| Allowance for Equity Funds Used During Construction |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Interest Expense |
|
215.1
|
|
177.1
|
|
157.7
|
|
| Income Tax Expense (Benefit) |
|
1.4
|
|
0.0
|
|
0.0
|
|
| Net Income (Loss) |
[16] |
1.3
|
|
0.0
|
|
0.2
|
|
| Gross Property Additions |
|
0.0
|
|
0.0
|
|
0.0
|
|
| Balance Sheet Information |
|
|
|
|
|
|
|
| Total Assets |
[17] |
5,486.6
|
|
4,817.4
|
|
|
|
| AEPTCo Parent [Member] | AEP Transmission Co [Member] | Related Party |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Transmission Revenues |
|
0.0
|
|
0.0
|
|
0.0
|
|
| AEPTCo Parent [Member] | Transmission [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Transmission Revenues |
|
$ 0.0
|
|
0.0
|
|
0.0
|
|
| AEPTCo Parent [Member] | Other Revenues [Member] | AEP Transmission Co [Member] |
|
|
|
|
|
|
|
| Reportable Segment Information |
|
|
|
|
|
|
|
| Revenue from Contract with Customers |
|
|
|
$ 0.0
|
|
$ 0.0
|
|
|
|