Acquisitions, Assets and Liabilities Held for Sale, Dispositions and Impairments (Details)		3 Months Ended				12 Months Ended
		Dec. 31, 2022 USD ($) MW	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2022 USD ($) MW	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						$ 48,800,000	$ 11,600,000	$ 0
Utilities Operating Expense, Operations						2,878,100,000	2,547,700,000	2,572,400,000
Additional Paid in Capital		$ 8,051,000,000				8,051,000,000	7,172,600,000
Asset Retirement Obligation, Liabilities Settled	[1],[2],[3],[4],[5],[6],[7]					47,000,000.0	41,400,000
Property, Plant and Equipment, Generation		24,597,700,000				24,597,700,000	23,088,100,000
Obligations Under Operating Leases		552,100,000				552,100,000	492,800,000
Customers		1,081,500,000				1,081,500,000	720,900,000
Materials and Supplies		888,900,000				888,900,000	681,300,000
Total Property, Plant and Equipment, Net	[8]	71,282,900,000				71,282,900,000	66,001,300,000
Noncurrent Regulatory Assets	[9]	4,281,200,000				4,281,200,000	4,142,300,000
Assets Held for Sale		2,823,500,000				2,823,500,000	2,919,700,000
Accounts Payable, Current		2,613,000,000				2,613,000,000	2,054,600,000
Long-term Debt, Current Maturities		1,996,400,000				1,996,400,000	2,153,800,000
Customer Deposits, Current		370,000,000.0				370,000,000.0	321,600,000
Regulatory Liabilities and Deferred Investment Tax Credits	[10]	7,999,600,000				7,999,600,000	8,686,300,000
Long-term Debt, Excluding Current Maturities		33,626,200,000				33,626,200,000	31,300,700,000
Liabilities Held for Sale		1,955,700,000				1,955,700,000	1,880,900,000
Property, Plant and Equipment, Other		$ 6,142,100,000				6,142,100,000	5,682,900,000
Depreciation and Amortization of Property, Plant and Equipment						3,072,800,000	2,717,100,000	2,487,500,000
Proceeds from Sale of Property, Plant, and Equipment						$ (218,000,000.0)	(118,900,000)	71,100,000
Equity Method Investment, Ownership Percentage		50.00%				50.00%
Deferred Tax Assets		$ 3,402,500,000				$ 3,402,500,000	3,277,000,000
BP Wind Energy [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Equity Method Investment, Ownership Percentage		50.00%				50.00%
North Central Wind Energy Facilities
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						$ 1,207,300,000	652,800,000	0
Dry Lake Solar Project [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						0	114,400,000	0
Vertically Integrated Utilities [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						24,900,000	11,600,000
Proceeds from Divestiture of Businesses						1,200,000,000
Enterprise Value		$ 2,850,000,000				2,850,000,000
Vertically Integrated Utilities [Member] | Proceeds for KY Operations
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Enterprise Value		2,646,000,000				$ 2,646,000,000
Vertically Integrated Utilities [Member] | Sundance [Member]
WindGenerationMWs | MW						199
Vertically Integrated Utilities [Member] | Maverick [Member]
WindGenerationMWs | MW						287
Vertically Integrated Utilities [Member] | Traverse [Member]
WindGenerationMWs | MW						998
Vertically Integrated Utilities [Member] | Kentucky Power Company and Kentucky Transmission Company
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Customers		97,700,000				$ 97,700,000	33,200,000
Materials and Supplies		48,200,000				48,200,000	30,600,000
Total Property, Plant and Equipment, Net		2,419,400,000				2,419,400,000	2,302,700,000
Noncurrent Regulatory Assets		504,100,000				504,100,000	484,700,000
Disposal Group, Including Discontinued Operation, Other Assets		51,300,000				51,300,000	68,500,000
Assets Held for Sale		2,823,500,000				2,823,500,000	2,919,700,000
Accounts Payable, Current		57,800,000				57,800,000	53,400,000
Long-term Debt, Current Maturities		490,000,000.0				490,000,000.0	200,000,000.0
Customer Deposits, Current		38,800,000				38,800,000	32,400,000
Regulatory Liabilities and Deferred Investment Tax Credits		116,000,000.0				116,000,000.0	148,100,000
Disposal Group, Including Discontinued Operation, Other Liabilities, Current		95,000,000.0				95,000,000.0	102,300,000
Long-term Debt, Excluding Current Maturities		688,400,000				688,400,000	903,100,000
Liabilities Held for Sale		1,955,700,000				1,955,700,000	1,880,900,000
Disposal Group, Including Discontinued Operation, Assets		3,120,700,000				3,120,700,000	2,919,700,000
Gain (Loss) on Disposition of Business net of Tax						(297,200,000)
Gain (Loss) on Disposition of Business							0
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities		469,700,000				469,700,000	441,600,000
Deferred Tax Assets		$ 66,100,000				66,100,000
Vertically Integrated Utilities [Member] | North Central Wind Energy Facilities | Maverick [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						383,000,000
Vertically Integrated Utilities [Member] | North Central Wind Energy Facilities | Traverse [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						1,200,000,000
Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						$ 0	0
Generation and Marketing [Member] | BP Wind Energy [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Equity Method Investment, Other than Temporary Impairment			$ 2,000,000	$ 186,000,000
Equity Method Investment, Ownership Percentage		50.00%				50.00%
Generation and Marketing [Member] | Proceeds of Mineral Rights Sale
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Proceeds from Sale of Property, Plant, and Equipment						$ 120,000,000
Gain (Loss) on Disposition of Other Assets						116,000,000
Generation and Marketing [Member] | Dry Lake Solar Project [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						114,000,000
Generation and Marketing [Member] | Dry Lake Solar Project [Member] | Payment When Put in Service
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						11,000,000
Generation and Marketing [Member] | Dry Lake Solar Project [Member] | Payment at Closing
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						103,000,000
Transmission and Distribution Companies [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						0	0
AEP Transmission Holdco
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						0	0
Enterprise Value		$ 2,850,000,000				2,850,000,000
AEP Transmission Holdco | Proceeds for KY Operations
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Enterprise Value		2,646,000,000				2,646,000,000
AEP Transmission Holdco | Kentucky Transmission Company
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Customers		1,800,000				1,800,000	1,500,000
Materials and Supplies		0				0	0
Total Property, Plant and Equipment, Net		169,800,000				169,800,000	165,300,000
Noncurrent Regulatory Assets		300,000				300,000	0
Disposal Group, Including Discontinued Operation, Other Assets		6,100,000				6,100,000	1,100,000
Assets Held for Sale		178,000,000.0				178,000,000.0	167,900,000
Accounts Payable, Current		1,500,000				1,500,000	1,100,000
Long-term Debt, Current Maturities		0				0	0
Customer Deposits, Current		0				0	0
Regulatory Liabilities and Deferred Investment Tax Credits		8,200,000				8,200,000	7,600,000
Disposal Group, Including Discontinued Operation, Other Liabilities, Current		2,800,000				2,800,000	3,500,000
Long-term Debt, Excluding Current Maturities		0				0	0
Liabilities Held for Sale		28,600,000				28,600,000	27,600,000
Disposal Group, Including Discontinued Operation, Assets		178,000,000.0				178,000,000.0	167,900,000
Gain (Loss) on Disposition of Business						0	0
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities		16,100,000				16,100,000	15,400,000
AEP Texas Inc. [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Utilities Operating Expense, Operations						594,200,000	489,500,000	488,900,000
Additional Paid in Capital		1,558,200,000				1,558,200,000	1,553,900,000
Asset Retirement Obligation, Liabilities Settled	[3],[4]					200,000	400,000
Obligations Under Operating Leases		67,800,000				67,800,000	61,300,000
Customers		150,900,000				150,900,000	123,400,000
Materials and Supplies		138,800,000				138,800,000	73,900,000
Total Property, Plant and Equipment, Net		11,681,600,000				11,681,600,000	10,635,400,000
Noncurrent Regulatory Assets		298,300,000				298,300,000	275,200,000
Accounts Payable, Current		331,000,000.0				331,000,000.0	306,300,000
Long-term Debt, Current Maturities		278,500,000				278,500,000	716,000,000.0
Regulatory Liabilities and Deferred Investment Tax Credits		1,259,600,000				1,259,600,000	1,242,000,000
Long-term Debt, Excluding Current Maturities		5,379,300,000				5,379,300,000	4,464,800,000
Property, Plant and Equipment, Other		1,022,800,000				1,022,800,000	961,100,000
Depreciation and Amortization of Property, Plant and Equipment						363,500,000	327,200,000	364,200,000
Deferred Tax Assets		177,000,000.0				177,000,000.0	173,800,000
AEP Transmission Co [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Utilities Operating Expense, Operations						136,300,000	105,500,000	99,800,000
Payments to Acquire Property, Plant, and Equipment						9,800,000	17,900,000	6,000,000.0
Obligations Under Operating Leases		1,500,000				1,500,000	1,300,000
Customers		46,700,000				46,700,000	22,500,000
Materials and Supplies		10,700,000				10,700,000	9,300,000
Total Property, Plant and Equipment, Net	[11]	13,170,100,000				13,170,100,000	11,935,700,000
Noncurrent Regulatory Assets	[12]	6,800,000				6,800,000	8,500,000
Assets Held for Sale		178,000,000.0				178,000,000.0	167,900,000
Accounts Payable, Current		427,000,000.0				427,000,000.0	460,100,000
Long-term Debt, Current Maturities		60,000,000.0				60,000,000.0	104,000,000.0
Regulatory Liabilities and Deferred Investment Tax Credits	[13]	715,000,000.0				715,000,000.0	644,100,000
Long-term Debt, Excluding Current Maturities		4,722,800,000				4,722,800,000	4,239,900,000
Liabilities Held for Sale		28,600,000				28,600,000	27,600,000
Property, Plant and Equipment, Other		451,900,000				451,900,000	427,400,000
Depreciation and Amortization of Property, Plant and Equipment						346,200,000	297,300,000	249,000,000.0
Deferred Tax Assets		162,500,000				162,500,000	158,800,000
AEP Transmission Co [Member] | AEP Transmission Holdco
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Proceeds from Divestiture of Businesses						1,200,000,000
Depreciation and Amortization of Property, Plant and Equipment						4,000,000
Appalachian Power Co [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						24,900,000	0	0
Utilities Operating Expense, Operations						724,100,000	610,000,000.0	530,500,000
Additional Paid in Capital		1,828,700,000				1,828,700,000	1,828,700,000
Asset Retirement Obligation, Liabilities Settled	[3],[4]					12,700,000	6,900,000
Property, Plant and Equipment, Generation		6,776,800,000				6,776,800,000	6,683,900,000
Obligations Under Operating Leases		59,100,000				59,100,000	52,400,000
Customers		168,900,000				168,900,000	158,500,000
Materials and Supplies		130,600,000				130,600,000	109,800,000
Total Property, Plant and Equipment, Net		12,379,200,000				12,379,200,000	11,804,300,000
Noncurrent Regulatory Assets		1,058,600,000				1,058,600,000	757,600,000
Accounts Payable, Current		451,200,000				451,200,000	262,200,000
Long-term Debt, Current Maturities		251,800,000				251,800,000	480,700,000
Customer Deposits, Current		75,100,000				75,100,000	73,900,000
Regulatory Liabilities and Deferred Investment Tax Credits		1,143,600,000				1,143,600,000	1,238,800,000
Long-term Debt, Excluding Current Maturities		5,158,700,000				5,158,700,000	4,458,200,000
Property, Plant and Equipment, Other		883,300,000				883,300,000	696,600,000
Depreciation and Amortization of Property, Plant and Equipment						576,100,000	547,000,000.0	507,800,000
Deferred Tax Assets		510,300,000				510,300,000	495,100,000
Indiana Michigan Power Co [Member]
Cost of Purchased Power from Affiliate						241,800,000	217,900,000	172,800,000
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Utilities Operating Expense, Operations						621,000,000.0	645,200,000	650,000,000.0
Additional Paid in Capital		988,800,000				988,800,000	980,900,000
Asset Retirement Obligation, Liabilities Settled	[3],[4],[5]					600,000	100,000
Property, Plant and Equipment, Generation		5,585,100,000				5,585,100,000	5,531,800,000
Obligations Under Operating Leases		48,900,000				48,900,000	48,900,000
Customers		96,600,000				96,600,000	40,600,000
Materials and Supplies		188,100,000				188,100,000	175,200,000
Total Property, Plant and Equipment, Net		7,411,500,000				7,411,500,000	7,310,900,000
Noncurrent Regulatory Assets		459,600,000				459,600,000	410,900,000
Accounts Payable, Current		173,400,000				173,400,000	174,400,000
Long-term Debt, Current Maturities		341,800,000				341,800,000	67,000,000.0
Customer Deposits, Current		48,600,000				48,600,000	45,200,000
Regulatory Liabilities and Deferred Investment Tax Credits		1,702,200,000				1,702,200,000	2,447,900,000
Long-term Debt, Excluding Current Maturities		2,919,000,000				2,919,000,000	3,128,000,000
Property, Plant and Equipment, Other		839,300,000				839,300,000	792,900,000
Depreciation and Amortization of Property, Plant and Equipment						511,900,000	424,900,000	393,300,000
Deferred Tax Assets		933,700,000				933,700,000	1,072,200,000
Ohio Power Co [Member]
Cost of Purchased Power from Affiliate						9,800,000	51,900,000	119,700,000
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Utilities Operating Expense, Operations						982,000,000.0	836,800,000	822,600,000
Additional Paid in Capital		837,800,000				837,800,000	838,800,000
Asset Retirement Obligation, Liabilities Settled	[3]					100,000	100,000
Obligations Under Operating Leases		60,300,000				60,300,000	68,600,000
Customers		119,900,000				119,900,000	71,600,000
Materials and Supplies		109,500,000				109,500,000	74,100,000
Total Property, Plant and Equipment, Net		8,609,300,000				8,609,300,000	7,963,000,000
Noncurrent Regulatory Assets		327,300,000				327,300,000	293,000,000.0
Accounts Payable, Current		337,300,000				337,300,000	213,500,000
Long-term Debt, Current Maturities		100,000				100,000	100,000
Customer Deposits, Current		96,500,000				96,500,000	66,400,000
Regulatory Liabilities and Deferred Investment Tax Credits		1,044,000,000				1,044,000,000	1,020,900,000
Long-term Debt, Excluding Current Maturities		2,970,200,000				2,970,200,000	2,968,400,000
Property, Plant and Equipment, Other		1,051,400,000				1,051,400,000	992,900,000
Depreciation and Amortization of Property, Plant and Equipment						293,100,000	301,100,000	275,000,000.0
Deferred Tax Assets		218,800,000				218,800,000	204,400,000
Public Service Co Of Oklahoma [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Utilities Operating Expense, Operations						400,400,000	353,800,000	327,300,000
Additional Paid in Capital		1,042,600,000				1,042,600,000	1,039,000,000
Asset Retirement Obligation, Liabilities Settled	[3],[4],[7]					700,000	700,000
Payments to Acquire Property, Plant, and Equipment						(549,300,000)	(297,000,000.0)	0
Property, Plant and Equipment, Generation		2,394,800,000				2,394,800,000	1,802,400,000
Obligations Under Operating Leases		99,300,000				99,300,000	62,200,000
Customers		70,100,000				70,100,000	41,500,000
Materials and Supplies		111,100,000				111,100,000	56,200,000
Total Property, Plant and Equipment, Net		5,626,500,000				5,626,500,000	4,802,800,000
Noncurrent Regulatory Assets		653,700,000				653,700,000	1,037,400,000
Accounts Payable, Current		202,900,000				202,900,000	157,400,000
Long-term Debt, Current Maturities		500,000				500,000	125,500,000
Customer Deposits, Current		59,000,000.0				59,000,000.0	56,200,000
Regulatory Liabilities and Deferred Investment Tax Credits		809,100,000				809,100,000	835,300,000
Long-term Debt, Excluding Current Maturities		1,912,300,000				1,912,300,000	1,788,000,000
Property, Plant and Equipment, Other		469,300,000				469,300,000	437,000,000.0
Depreciation and Amortization of Property, Plant and Equipment						226,200,000	185,900,000	171,900,000
Deferred Tax Assets		225,000,000.0				225,000,000.0	170,000,000.0
Southwestern Electric Power Co [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						0	11,600,000	0
Utilities Operating Expense, Operations						424,700,000	360,300,000	338,300,000
Additional Paid in Capital		1,442,200,000				1,442,200,000	1,092,200,000
Asset Retirement Obligation, Liabilities Settled	[2],[3],[4],[7]					25,800,000	20,900,000
Property, Plant and Equipment, Generation		5,476,200,000				5,476,200,000	4,734,500,000
Obligations Under Operating Leases		120,200,000				120,200,000	77,700,000
Customers		38,800,000				38,800,000	35,800,000
Materials and Supplies		92,100,000				92,100,000	81,900,000
Total Property, Plant and Equipment, Net		8,262,200,000				8,262,200,000	7,400,100,000
Noncurrent Regulatory Assets		1,042,400,000				1,042,400,000	1,005,300,000
Accounts Payable, Current		213,100,000				213,100,000	163,600,000
Long-term Debt, Current Maturities		6,200,000				6,200,000	6,200,000
Customer Deposits, Current		65,400,000				65,400,000	62,400,000
Regulatory Liabilities and Deferred Investment Tax Credits		825,700,000				825,700,000	806,900,000
Long-term Debt, Excluding Current Maturities		3,385,400,000				3,385,400,000	3,389,000,000
Property, Plant and Equipment, Other		804,400,000				804,400,000	764,000,000.0
Depreciation and Amortization of Property, Plant and Equipment						319,300,000	292,900,000	271,200,000
Deferred Tax Assets		374,900,000				374,900,000	336,400,000
Southwestern Electric Power Co [Member] | North Central Wind Energy Facilities
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						658,000,000.0	355,800,000	0
Southwestern Electric Power Co [Member] | Vertically Integrated Utilities [Member] | Dolet Hills Power Station [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Asset Impairments and Other Related Charges						12,000,000
Kentucky Power Co [Member] | Vertically Integrated Utilities [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Gain (Loss) on Disposition of Business net of Tax		79,000,000	149,000,000			297,000,000
Gain (Loss) on Disposition of Business		100,000,000	$ 194,000,000	$ 69,000,000		363,000,000
Depreciation and Amortization of Property, Plant and Equipment						99,000,000
Conesville Generating Station (Unit No. 4) [Member] | Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments for (Proceeds from) Removal Costs					$ 26,000,000		98,000,000
Asset Retirement Obligation, Liabilities Settled							106,000,000
Payments for Removal Costs							72,000,000
Trent and Desert Sky Wind Farms [Member] | Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Additional Paid in Capital		$ 6,000,000				$ 6,000,000
Mitchell Power Plant
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Approximate OVEC Generating Capacity (MWs) | MW		1,560				1,560
NBV Mitchell Including CWIP and Inventory		$ 577,000,000				$ 577,000,000	586,000,000
Mitchell Power Plant | Kentucky Power Co [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Ownership Interest in Mitchell Power Plant		50.00%				50.00%
Mitchell Power Plant | Wheeling Power Company
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Ownership Interest in Mitchell Power Plant		50.00%				50.00%
Cardinal Power Plant | Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Approximate OVEC Generating Capacity (MWs) | MW		595				595
AEP Wind Holdings LLC [Member] | Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Maximum Potential Amount of Future Payments Associated with Guarantee		$ 59,000,000				$ 59,000,000
Guarantor Obligations, Current Carrying Value		5,000,000				5,000,000
Guarantor Obligations, Current Carrying Value, Contingent Portion		$ 1,000,000				1,000,000
AEP Wind Holdings LLC [Member] | Indiana Michigan Power Co [Member] | Generation and Marketing [Member]
Cost of Purchased Power from Affiliate						12,000,000	10,000,000	11,000,000
AEP Wind Holdings LLC [Member] | Ohio Power Co [Member] | Generation and Marketing [Member]
Cost of Purchased Power from Affiliate						24,000,000	20,000,000	23,000,000
AEP Wind Holdings LLC [Member] | Southwestern Electric Power Co [Member] | Generation and Marketing [Member]
Cost of Purchased Power from Affiliate						$ 14,000,000	14,000,000	14,000,000
Santa Rita East [Member]
Noncash or Part Noncash Acquisition, Other Assets Acquired							18,900,000	(43,700,000)
Santa Rita East [Member] | Noncontrolling Interests [Member]
Noncash or Part Noncash Acquisition, Other Assets Acquired							18,900,000	$ (43,700,000)
Santa Rita East [Member] | Generation and Marketing [Member]
Noncash Contribution of Assets by Noncontrolling Interest							44,000,000
Percentage of an Asset Acquired		85.00%				85.00%		10.00%
WindGenerationMWs | MW						302
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Businesses, Gross							44,000,000
Dry Lake Solar Project [Member]
Percentage of an Asset Acquired		75.00%				75.00%
Dry Lake Solar Project [Member] | Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Solar Generation MWs | MW						100
North Central Wind Energy Facilities
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						$ 2,000,000,000
North Central Wind Energy Facilities | Vertically Integrated Utilities [Member]
WindGenerationMWs | MW						1,484
North Central Wind Energy Facilities | Vertically Integrated Utilities [Member] | Sundance [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Property, Plant, and Equipment						$ 270,000,000
North Central Wind Energy Facilities | Public Service Co Of Oklahoma [Member]
Percentage of an Asset Acquired		45.50%				45.50%
North Central Wind Energy Facilities | Public Service Co Of Oklahoma [Member] | Vertically Integrated Utilities [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Property, Plant and Equipment, Generation		$ 901,000,000				$ 901,000,000	316,000,000
Obligations Under Operating Leases		70,400,000				70,400,000	30,600,000
North Central Wind Energy Facilities | Public Service Co Of Oklahoma [Member] | Vertically Integrated Utilities [Member] | Sundance [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Obligations Under Operating Leases		12,600,000				12,600,000	12,600,000
North Central Wind Energy Facilities | Public Service Co Of Oklahoma [Member] | Vertically Integrated Utilities [Member] | Maverick [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Obligations Under Operating Leases		18,000,000.0				18,000,000.0	18,000,000.0
North Central Wind Energy Facilities | Public Service Co Of Oklahoma [Member] | Vertically Integrated Utilities [Member] | Traverse [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Obligations Under Operating Leases		$ 39,800,000				$ 39,800,000	0
North Central Wind Energy Facilities | Southwestern Electric Power Co [Member]
Percentage of an Asset Acquired		54.50%				54.50%
North Central Wind Energy Facilities | Southwestern Electric Power Co [Member] | Vertically Integrated Utilities [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Property, Plant and Equipment, Generation		$ 1,100,000,000				$ 1,100,000,000	378,000,000
Obligations Under Operating Leases		84,400,000				84,400,000	36,700,000
North Central Wind Energy Facilities | Southwestern Electric Power Co [Member] | Vertically Integrated Utilities [Member] | Sundance [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Obligations Under Operating Leases		15,100,000				15,100,000	15,100,000
North Central Wind Energy Facilities | Southwestern Electric Power Co [Member] | Vertically Integrated Utilities [Member] | Maverick [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Obligations Under Operating Leases		21,600,000				21,600,000	21,600,000
North Central Wind Energy Facilities | Southwestern Electric Power Co [Member] | Vertically Integrated Utilities [Member] | Traverse [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Obligations Under Operating Leases		47,700,000				47,700,000	0
Trent and Desert Sky Wind Farms [Member] | Generation and Marketing [Member]
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Payments to Acquire Businesses, Gross						57,000,000
Redeemable Noncontrolling Interest		$ 63,000,000				63,000,000
Noncontrolling Interests [Member] | Dry Lake Solar Project [Member]
Noncash Contribution of Assets by Noncontrolling Interest						$ 0	$ 35,300,000	$ 0

[1] Includes $18 million and $18 million as of December 31, 2022 and 2021, respectively, of ARO classified as Liabilities Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information

[2] Includes ARO related to Sabine and DHLC.

[3] Includes ARO related to asbestos removal.

[4] Includes ARO related to ash disposal facilities.

[5] Includes ARO related to nuclear decommissioning costs for the Cook Plant of $2 billion and $1.93 billion as of December 31, 2022 and 2021, respectively.

[6] Includes ARO related to solar farms.

[7] Includes ARO related to wind farms.

[8] Amount excludes $2.4 billion and $2.3 billion as of December 31, 2022 and 2021, respectively, of Property, Plant and Equipment - Net classified as Assets Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.

[9] Amounts exclude $481 million and $477 million as of December 31, 2022 and 2021, respectively, of Regulatory Assets classified as Assets Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.

[10] Amounts exclude $116 million and $148 million as of December 31, 2022 and 2021, respectively, of Regulatory Liabilities and Deferred Investment Tax Credits classified as Liabilities Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.

[11] Amount excludes $170 million and $165 million as of December 31, 2022 and 2021, respectively, of Property, Plant and Equipment - Net classified as Assets Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.

[12] Amounts exclude $346 thousand and $0 as of December 31, 2022 and 2021, respectively, of Regulatory Assets classified as Assets Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.

[13] Amounts exclude $8 million and $8 million as of December 31, 2022 and 2021, respectively, of Regulatory Liabilities classified as Liabilities Held for Sale on the balance sheet. See “Disposition of KPCo and KTCo” section of Note 7 for additional information.