CONDENSED CONSOLIDATED STATEMENTS OF INCOME - I&M - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
REVENUES
TOTAL REVENUES	$ 6,020	$ 5,463
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	2,118	1,853
Other Operation	750	752
Maintenance	411	319
Depreciation and Amortization	907	833
Taxes Other Than Income Taxes	443	422
TOTAL EXPENSES	4,660	4,179
OPERATING INCOME	1,360	1,284
Other Income (Expense):
Other Income	6	8
Non-Service Cost Components of Net Periodic Benefit Cost	38	35
Interest Expense	(552)	(495)
INCOME (LOSS) BEFORE INCOME TAX EXPENSE (BENEFIT)	922	889
Income Tax Expense	44	125
Nonrelated Party
REVENUES
TOTAL REVENUES	6,020	5,463
INDIANA MICHIGAN POWER COMPANY
REVENUES
TOTAL REVENUES	933	723
EXPENSES
Other Operation	188	171
Maintenance	76	60
Depreciation and Amortization	131	124
Taxes Other Than Income Taxes	24	26
TOTAL EXPENSES	728	633
OPERATING INCOME	205	90
Other Income (Expense):
Other Income	8	5
Non-Service Cost Components of Net Periodic Benefit Cost	4	5
Interest Expense	(43)	(35)
INCOME (LOSS) BEFORE INCOME TAX EXPENSE (BENEFIT)	174	65
Income Tax Expense	26	7
NET INCOME	148	58
INDIANA MICHIGAN POWER COMPANY | Affiliated Entity
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	77	76
INDIANA MICHIGAN POWER COMPANY | Nonrelated Party
EXPENSES
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation	232	176
Electric Generation, Transmission and Distribution | INDIANA MICHIGAN POWER COMPANY
REVENUES
TOTAL REVENUES	961	759
Sales to AEP Affiliates | INDIANA MICHIGAN POWER COMPANY
REVENUES
TOTAL REVENUES	5	4
Provision for Refund | INDIANA MICHIGAN POWER COMPANY | Affiliated Entity
REVENUES
TOTAL REVENUES	0	(1)
Provision for Refund | INDIANA MICHIGAN POWER COMPANY | Nonrelated Party
REVENUES
TOTAL REVENUES	(48)	(58)
Other Revenues
REVENUES
TOTAL REVENUES	130	132
Other Revenues | INDIANA MICHIGAN POWER COMPANY | Affiliated Entity
REVENUES
TOTAL REVENUES	14	16
Other Revenues | INDIANA MICHIGAN POWER COMPANY | Nonrelated Party
REVENUES
TOTAL REVENUES	$ 1	$ 3