Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activites
Net Income (Loss)	$ 2,212.6	$ 2,305.6	$ 2,488.1
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	3,090.4	3,202.8	2,825.7
Rockport Plant, Unit 2 Lease Amortization	0.0	0.0	135.4
Deferred Income Taxes	185.1	(137.2)	107.6
Asset Impairments and Other Related Charges	85.6	48.8	11.6
Equity Method Investment, Other than Temporary Impairment	19.0	188.0	0.0
Allowance for Equity Funds Used During Construction	(174.9)	(133.7)	(139.7)
Mark-to-Market of Risk Management Contracts	8.8	15.5	112.3
Amortization of Nuclear Fuel	96.6	82.9	85.3
Property Taxes	(41.1)	(41.2)	(68.0)
Deferred Fuel Over/Under-Recovery, Net	892.8	(319.2)	(1,647.9)
Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset	0.0	(37.0)	0.0
Gain (Loss) on Disposition Assets		(116.3)
Change in Regulatory Assets	(315.8)	(46.7)	(238.9)
Change in Other Noncurrent Assets	(465.1)	(187.7)	(126.6)
Change in Other Noncurrent Liabilities	29.0	337.8	206.4
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	236.5	(681.7)	(119.7)
Fuel, Materials and Supplies	(504.0)	(313.9)	300.2
Accounts Payable	(253.2)	489.2	200.6
Accrued Taxes, Net	22.5	105.4	218.7
Rockport Plant, Unit 2 Operating Lease Payments	0.0	0.0	(147.7)
Other Current Assets	(43.9)	109.0	(151.3)
Other Current Liabilities	(161.4)	54.3	(212.2)
Net Cash Flows from Operating Activities	5,012.2	5,288.0	3,839.9
Investing Activities
Construction Expenditures	(7,378.3)	(6,671.7)	(5,659.6)
Purchases of Investment Securities	(2,863.6)	(2,784.2)	(1,955.1)
Sales of Investment Securities	2,795.1	2,743.8	1,901.4
Acquisitions of Nuclear Fuel	(128.2)	(100.7)	(104.5)
Acquisition	1,341.4	218.0	(118.9)
Other Investing Activities	122.1	50.3	32.2
Net Cash Flows Used for Investing Activities	(6,266.7)	(7,751.8)	(6,433.9)
Financing Activities
Issuance of Common Stock, Net	999.6	826.5	600.5
Issuance of Long-term Debt	5,462.8	4,649.7	6,486.3
Issuance of Short-term Debt with Original Maturities Greater Than 90 Days	1,069.9	833.9	1,393.3
Change in Short-term Debt with Original Maturities Less Than 90 Days, Net	(1,223.1)	1,650.4	(487.3)
Retirement of Long-term Debt	(2,196.1)	(2,345.4)	(2,989.3)
Redemption of Short-term Debt with Original Maturities Greater Than 90 Days	(1,128.8)	(986.1)	(771.3)
Principal Payments for Finance Lease Obligations	(68.3)	(309.5)	(64.0)
Dividends Paid on Common Stock - Nonaffiliated	(1,760.4)	(1,645.2)	(1,519.5)
Other Financing Activities	(78.6)	(105.4)	(41.6)
Net Cash Flows from Financing Activities	1,077.0	2,568.9	2,607.1
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(177.5)	105.1	13.1
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	556.5	451.4	438.3
Cash and Cash Equivalents at Beginning of Period	509.4
Cash, Cash Equivalents and Restricted Cash at End of Period	379.0	556.5	451.4
Cash and Cash Equivalents at End of Period	330.1	509.4
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	1,673.5	1,286.3	1,137.2
Net Cash Paid (Received) for Income Taxes	78.4	116.8	13.2
Cash Received from the Sale of Transferable Tax Credits	(102.0)	0.0	0.0
Construction Expenditures Included in Current Liabilities as of December 31,	842.4	1,258.9	1,180.4
Acquisition of Nuclear Fuel Included in Current Liabilities as of December 31,	24.2	0.0	0.0
Kentucky Power Co [Member]
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Asset Impairments and Other Related Charges	0.0	363.3	0.0
Mineral Rights
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Gain (Loss) on Disposition Assets	0.0	(116.3)	0.0
Competitive Contracted Renewables
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Gain (Loss) on Disposition Assets	92.7	0.0	0.0
Renewable Energy Facilities
Investing Activities
Acquisitions of Renewable Energy Facilities	(155.2)	(1,207.3)	(767.2)
AEP Texas Inc. [Member]
Operating Activites
Net Income (Loss)	370.4	307.9	289.8
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	468.5	452.4	387.0
Deferred Income Taxes	64.1	42.2	43.0
Allowance for Equity Funds Used During Construction	(28.4)	(19.7)	(21.5)
Mark-to-Market of Risk Management Contracts	0.4	(0.4)	0.0
Change in Other Noncurrent Assets	(96.5)	(36.2)	(78.2)
Change in Other Noncurrent Liabilities	24.3	57.6	26.4
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(28.3)	(45.0)	(21.6)
Fuel, Materials and Supplies	(51.6)	(64.9)	(3.9)
Accounts Payable	(24.1)	25.0	8.9
Accrued Taxes, Net	11.8	14.8	7.0
Other Current Assets	3.0	2.2	(0.9)
Other Current Liabilities	(53.9)	(4.0)	(39.4)
Net Cash Flows from Operating Activities	659.7	731.9	596.6
Investing Activities
Construction Expenditures	(1,477.1)	(1,305.0)	(1,033.3)
Change in Advances to Affiliates, Net	(0.2)	0.0	0.2
Other Investing Activities	69.3	35.1	32.3
Net Cash Flows Used for Investing Activities	(1,408.0)	(1,269.9)	(1,000.8)
Financing Activities
Capital Contributions from Member	527.0	4.3	96.0
Return of Capital to Parent Cash Flows	(5.6)	0.0	0.0
Issuance of Long-term Debt	505.4	1,188.6	444.2
Change in Advances from Affiliates, Net	7.2	69.6	(40.2)
Retirement of Long-term Debt	(278.5)	(716.0)	(88.7)
Principal Payments for Finance Lease Obligations	(7.4)	(6.8)	(6.7)
Other Financing Activities	1.5	0.6	1.3
Net Cash Flows from Financing Activities	749.6	540.3	405.9
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	1.3	2.3	1.7
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	32.8	30.5	28.8
Cash and Cash Equivalents at Beginning of Period	0.1
Cash, Cash Equivalents and Restricted Cash at End of Period	34.1	32.8	30.5
Cash and Cash Equivalents at End of Period	0.1	0.1
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	225.6	198.9	168.9
Net Cash Paid (Received) for Income Taxes	11.5	11.0	5.7
Noncash Acquisitions Under Finance Leases	4.8	6.1	4.4
Construction Expenditures Included in Current Liabilities as of December 31,	112.2	235.4	230.0
AEP Transmission Co [Member]
Operating Activites
Net Income (Loss)	614.2	594.2	591.7
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	393.8	346.2	297.3
Deferred Income Taxes	44.1	62.3	68.5
Allowance for Equity Funds Used During Construction	(83.2)	(70.7)	(67.2)
Property Taxes	(19.8)	(20.9)	(25.6)
Change in Other Noncurrent Assets	8.6	(7.4)	7.5
Change in Other Noncurrent Liabilities	134.2	68.7	3.7
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(41.3)	(46.3)	(16.0)
Fuel, Materials and Supplies	10.7	(1.4)	(0.8)
Accounts Payable	22.8	18.5	(2.2)
Accrued Taxes, Net	42.9	50.2	67.2
Accrued Interest	10.8	0.0	4.8
Other Current Assets	(0.1)	(1.1)	1.2
Other Current Liabilities	(0.1)	3.0	(4.4)
Net Cash Flows from Operating Activities	1,137.6	995.3	925.7
Investing Activities
Construction Expenditures	(1,496.2)	(1,458.5)	(1,424.8)
Change in Advances to Affiliates, Net	(62.7)	22.8	81.9
Acquisitions of Renewable Energy Facilities	(6.9)	(9.8)	(17.9)
Other Investing Activities	8.1	6.3	1.8
Net Cash Flows Used for Investing Activities	(1,557.7)	(1,439.2)	(1,359.0)
Financing Activities
Capital Contributions from Member	29.7	72.7	184.0
Return of Capital to Parent Cash Flows	(8.6)	0.0	0.0
Issuance of Long-term Debt	689.0	540.8	443.7
Change in Advances from Affiliates, Net	(55.0)	104.4	(31.9)
Retirement of Long-term Debt	(60.0)	(104.0)	(50.0)
Principal Payments for Finance Lease Obligations	0.0	0.0
Dividends Paid on Common Stock	(175.0)	(170.0)	(112.5)
Net Cash Flows from Financing Activities	420.1	443.9	433.3
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	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
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	179.9	158.8	132.9
Net Cash Paid (Received) for Income Taxes	87.6	95.5	65.7
Construction Expenditures Included in Current Liabilities as of December 31,	177.6	320.7	358.7
Appalachian Power Co [Member]
Operating Activites
Net Income (Loss)	294.4	394.2	348.9
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	571.9	575.9	546.2
Deferred Income Taxes	(54.3)	79.6	15.0
Asset Impairments and Other Related Charges	0.0	24.9	0.0
Allowance for Equity Funds Used During Construction	(11.9)	(11.7)	(15.6)
Mark-to-Market of Risk Management Contracts	65.6	(24.4)	(22.3)
Deferred Fuel Over/Under-Recovery, Net	279.7	(501.8)	(196.0)
Establishment of 2017-2019 Virginia Triennial Review Regulatory Asset	0.0	(37.0)	0.0
Change in Other Noncurrent Assets	(115.3)	(75.2)	(68.8)
Change in Other Noncurrent Liabilities	(1.9)	31.4	35.6
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	17.5	(8.5)	(53.3)
Fuel, Materials and Supplies	(173.9)	(113.5)	116.1
Increase (Decrease) in Margin Deposits Outstanding	(16.1)	64.4	(70.0)
Accounts Payable	(125.9)	190.1	36.8
Accrued Taxes, Net	25.2	6.7	(16.2)
Other Current Assets	0.4	0.2	(2.4)
Other Current Liabilities	(32.3)	5.9	(42.3)
Net Cash Flows from Operating Activities	723.1	601.2	611.7
Investing Activities
Construction Expenditures	(1,053.0)	(1,048.6)	(841.6)
Change in Advances to Affiliates, Net	0.9	1.0	0.6
Other Investing Activities	(2.8)	42.4	14.5
Net Cash Flows Used for Investing Activities	(1,054.9)	(1,005.2)	(826.5)
Financing Activities
Capital Contributions from Member	6.5	0.0	0.0
Return of Capital to Parent Cash Flows	(0.7)	0.0	0.0
Issuance of Long-term Debt	200.0	698.0	494.0
Change in Advances from Affiliates, Net	157.4	(17.1)	180.7
Retirement of Long-term Debt	(26.6)	(230.4)	(393.0)
Principal Payments for Finance Lease Obligations	(8.3)	(7.9)	(7.7)
Dividends Paid on Common Stock	0.0	(37.5)	(62.5)
Other Financing Activities	1.5	0.7	0.7
Net Cash Flows from Financing Activities	329.8	405.8	212.2
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(2.0)	1.8	(2.6)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	21.9	20.1	22.7
Cash and Cash Equivalents at Beginning of Period	7.5
Cash, Cash Equivalents and Restricted Cash at End of Period	19.9	21.9	20.1
Cash and Cash Equivalents at End of Period	5.0	7.5
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	259.7	215.1	207.5
Net Cash Paid (Received) for Income Taxes	47.4	(88.6)	32.8
Noncash Acquisitions Under Finance Leases	5.0	1.6	1.7
Construction Expenditures Included in Current Liabilities as of December 31,	100.7	164.6	139.1
Indiana Michigan Power Co [Member]
Operating Activites
Net Income (Loss)	335.9	324.7	279.8
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	470.0	527.2	446.0
Rockport Plant, Unit 2 Operating Lease Amortization	0.0	0.0	62.4
Deferred Income Taxes	(54.1)	(45.1)	(38.0)
Amortization (Deferral) of Incremental Nuclear Refueling Outage Expenses, Net	25.6	(49.2)	7.5
Allowance for Equity Funds Used During Construction	(10.9)	(9.8)	(12.8)
Mark-to-Market of Risk Management Contracts	(22.2)	(16.9)	5.2
Amortization of Nuclear Fuel	96.6	82.9	85.3
Deferred Fuel Over/Under-Recovery, Net	55.5	(42.2)	(20.2)
Change in Other Noncurrent Assets	(80.3)	(47.3)	(54.1)
Change in Other Noncurrent Liabilities	47.6	62.4	7.5
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	71.4	(82.7)	(22.3)
Fuel, Materials and Supplies	(61.4)	(2.6)	30.1
Accounts Payable	22.5	37.3	42.3
Accrued Taxes, Net	1.5	9.4	1.6
Rockport Plant, Unit 2 Operating Lease Payments	0.0	0.0	(73.9)
Other Current Assets	(6.2)	19.5	(15.2)
Other Current Liabilities	(11.6)	(46.9)	2.5
Net Cash Flows from Operating Activities	879.9	720.7	733.7
Investing Activities
Construction Expenditures	(550.3)	(557.8)	(500.9)
Change in Advances to Affiliates, Net	23.0	(1.5)	(8.2)
Purchases of Investment Securities	(2,845.1)	(2,765.4)	(1,928.2)
Sales of Investment Securities	2,787.5	2,713.6	1,886.4
Acquisitions of Nuclear Fuel	(128.2)	(100.7)	(104.5)
Other Investing Activities	6.1	10.3	22.3
Net Cash Flows Used for Investing Activities	(707.0)	(701.5)	(633.1)
Financing Activities
Capital Contributions from Member	8.8	7.9	0.0
Issuance of Long-term Debt	565.3	142.7	546.7
Change in Advances from Affiliates, Net	(186.6)	156.6	(9.7)
Retirement of Long-term Debt	(343.3)	(83.4)	(383.5)
Principal Payments for Finance Lease Obligations	(7.4)	(130.7)	(6.8)
Dividends Paid on Common Stock	(212.5)	(110.0)	(250.0)
Other Financing Activities	0.7	0.6	0.7
Net Cash Flows from Financing Activities	(175.0)	(16.3)	(102.6)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(2.1)	2.9	(2.0)
Cash and Cash Equivalents at Beginning of Period	4.2	1.3	3.3
Cash and Cash Equivalents at End of Period	2.1	4.2	1.3
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	131.6	120.9	110.9
Net Cash Paid (Received) for Income Taxes	109.0	10.1	29.3
Noncash Acquisitions Under Finance Leases	4.8	2.2	132.3
Construction Expenditures Included in Current Liabilities as of December 31,	67.8	71.9	87.8
Acquisition of Nuclear Fuel Included in Current Liabilities as of December 31,	24.2	0.0	0.0
Ohio Power Co [Member]
Operating Activites
Net Income (Loss)	328.2	287.8	253.6
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	316.2	294.3	303.3
Deferred Income Taxes	7.9	71.5	30.7
Allowance for Equity Funds Used During Construction	(17.1)	(13.9)	(10.8)
Mark-to-Market of Risk Management Contracts	11.0	(52.8)	(17.8)
Property Taxes	(11.5)	(20.0)	(35.3)
Change in Regulatory Assets	(90.9)	30.4	38.3
Change in Other Noncurrent Assets	(137.5)	(87.1)	(40.7)
Change in Other Noncurrent Liabilities	(0.4)	91.1	6.9
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	72.8	(83.7)	(11.8)
Fuel, Materials and Supplies	(6.9)	(23.4)	(2.5)
Accounts Payable	23.6	112.7	19.1
Accrued Taxes, Net	27.5	27.8	78.2
Other Current Assets	0.4	11.2	(15.7)
Other Current Liabilities	(61.0)	40.2	(19.9)
Net Cash Flows from Operating Activities	462.3	686.1	575.6
Investing Activities
Construction Expenditures	(990.4)	(872.4)	(732.8)
Change in Advances to Affiliates, Net	0.0	42.0	(42.0)
Other Investing Activities	41.0	27.9	21.5
Net Cash Flows Used for Investing Activities	(949.4)	(802.5)	(753.3)
Financing Activities
Capital Contributions from Member	175.0	1.0	0.0
Return of Capital to Parent Cash Flows	0.0	(2.0)	0.0
Issuance of Long-term Debt	395.0	0.0	1,037.1
Change in Advances from Affiliates, Net	(62.4)	172.9	(259.2)
Retirement of Long-term Debt	(0.6)	(0.1)	(500.1)
Principal Payments for Finance Lease Obligations	(5.0)	(4.9)	(4.9)
Dividends Paid on Common Stock	(20.0)	(45.0)	(100.0)
Other Financing Activities	1.9	1.1	0.4
Net Cash Flows from Financing Activities	483.9	123.0	173.3
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(3.2)	6.6	(4.4)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	9.6	3.0	7.4
Cash and Cash Equivalents at Beginning of Period	9.6
Cash, Cash Equivalents and Restricted Cash at End of Period	6.4	9.6	3.0
Cash and Cash Equivalents at End of Period	6.4	9.6
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	124.1	113.4	119.5
Net Cash Paid (Received) for Income Taxes	38.9	(19.7)	(7.9)
Noncash Acquisitions Under Finance Leases	4.1	3.0	2.5
Construction Expenditures Included in Current Liabilities as of December 31,	97.7	109.7	97.1
Public Service Co Of Oklahoma [Member]
Operating Activites
Net Income (Loss)	208.8	167.6	141.1
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	255.5	230.1	196.6
Deferred Income Taxes	7.9	(59.4)	113.9
Allowance for Equity Funds Used During Construction	(8.4)	(1.5)	(2.4)
Mark-to-Market of Risk Management Contracts	33.0	(13.7)	1.9
Deferred Fuel Over/Under-Recovery, Net	313.2	442.4	(843.8)
Change in Other Regulatory Assets	(108.3)	4.7	(3.5)
Change in Other Noncurrent Assets	(71.3)	(40.1)	(14.8)
Change in Other Noncurrent Liabilities	8.2	29.9	4.4
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(16.3)	(46.0)	(28.7)
Fuel, Materials and Supplies	(16.8)	(51.1)	1.4
Accounts Payable	(58.2)	57.5	34.2
Accrued Taxes, Net	(12.9)	3.2	(6.5)
Other Current Assets	10.7	(6.3)	(6.3)
Other Current Liabilities	45.4	30.4	(20.8)
Net Cash Flows from Operating Activities	590.5	747.7	(433.3)
Investing Activities
Construction Expenditures	(562.3)	(447.0)	(332.1)
Other Investing Activities	15.2	4.3	2.4
Net Cash Flows Used for Investing Activities	(692.8)	(992.0)	(626.7)
Financing Activities
Capital Contributions from Member	0.6	3.6	625.0
Return of Capital to Parent Cash Flows	(3.9)	0.0	0.0
Issuance of Long-term Debt	469.8	499.7	1,290.0
Change in Advances from Affiliates, Net	(309.8)	291.9	(83.1)
Retirement of Long-term Debt	(0.5)	(500.5)	(750.5)
Principal Payments for Finance Lease Obligations	(3.3)	(3.2)	(3.2)
Dividends Paid on Common Stock	(52.5)	(45.0)	(20.0)
Other Financing Activities	0.4	0.5	0.5
Net Cash Flows from Financing Activities	100.8	247.0	1,058.7
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(1.5)	2.7	(1.3)
Cash and Cash Equivalents at Beginning of Period	4.0	1.3	2.6
Cash and Cash Equivalents at End of Period	2.5	4.0	1.3
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	87.3	79.7	57.0
Net Cash Paid (Received) for Income Taxes	(10.6)	(12.5)	(102.9)
Cash Received from the Sale of Transferable Tax Credits	(34.6)	0.0	0.0
Noncash Acquisitions Under Finance Leases	2.1	2.8	3.6
Construction Expenditures Included in Current Liabilities as of December 31,	72.9	69.8	56.8
Public Service Co Of Oklahoma [Member] | Renewable Energy Facilities
Investing Activities
Acquisitions of Renewable Energy Facilities	(145.7)	(549.3)	(297.0)
Southwestern Electric Power Co [Member]
Operating Activites
Net Income (Loss)	223.8	294.3	242.1
Adjustments to Reconcile Net Income to Net Cash Flows from (Used for) Operating Activities:
Depreciation and Amortization	342.8	324.8	295.0
Deferred Income Taxes	54.0	9.4	16.6
Asset Impairments and Other Related Charges	85.6	0.0	11.6
Allowance for Equity Funds Used During Construction	(11.5)	(4.9)	(7.0)
Mark-to-Market of Risk Management Contracts	19.1	(6.2)	(7.3)
Deferred Fuel Over/Under-Recovery, Net	184.3	(86.4)	(546.4)
Change in Regulatory Assets	(60.8)	7.6	(95.6)
Change in Other Noncurrent Assets	(40.5)	42.9	41.9
Change in Other Noncurrent Liabilities	11.0	18.3	(1.1)
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	20.1	(28.2)	(21.5)
Fuel, Materials and Supplies	(31.4)	(9.3)	126.5
Accounts Payable	(8.4)	34.1	22.0
Accrued Taxes, Net	(4.5)	9.8	15.4
Other Current Assets	20.2	(9.8)	(3.6)
Other Current Liabilities	(0.8)	(9.8)	8.2
Net Cash Flows from Operating Activities	803.0	586.6	96.8
Investing Activities
Construction Expenditures	(780.5)	(586.4)	(414.6)
Change in Advances to Affiliates, Net	(0.1)	153.8	(153.8)
Other Investing Activities	3.9	5.5	3.5
Net Cash Flows Used for Investing Activities	(776.7)	(1,085.1)	(920.7)
Financing Activities
Capital Contributions from Member	50.0	350.0	280.0
Issuance of Long-term Debt	346.8	0.0	1,137.6
Change in Short-term Debt with Original Maturities Less Than 90 Days, Net	4.3	0.0	(35.0)
Change in Advances from Affiliates, Net	(222.0)	310.7	(124.6)
Retirement of Long-term Debt	(94.1)	(6.2)	(381.2)
Principal Payments for Finance Lease Obligations	(19.1)	(10.8)	(10.9)
Dividends Paid on Common Stock	(175.0)	(105.0)	0.0
Dividends Paid on Common Stock - Nonaffiliated	(4.0)	(3.4)	(4.8)
Other Financing Activities	0.8	0.4	0.8
Net Cash Flows from Financing Activities	(112.3)	535.7	861.9
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	(86.0)	37.2	38.0
Cash and Cash Equivalents at Beginning of Period	88.4	51.2	13.2
Cash and Cash Equivalents at End of Period	2.4	88.4	51.2
Supplementary Information
Cash Paid for Interest, Net of Capitalized Amounts	128.9	131.2	116.5
Net Cash Paid (Received) for Income Taxes	(41.0)	(29.1)	(28.8)
Cash Received from the Sale of Transferable Tax Credits	(41.4)	0.0	0.0
Noncash Acquisitions Under Finance Leases	7.1	3.6	4.8
Construction Expenditures Included in Current Liabilities as of December 31,	63.7	105.6	69.0
Southwestern Electric Power Co [Member] | North Central Wind Energy Facilities
Investing Activities
Acquisitions of Renewable Energy Facilities	$ 0.0	$ (658.0)	$ (355.8)