v3.26.3
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN COMMON SHAREHOLDER’S EQUITY - I&M - USD ($)
$ in Millions
Total
Retained Earnings
 [1]
INDIANA MICHIGAN POWER COMPANY
INDIANA MICHIGAN POWER COMPANY
Common Stock
INDIANA MICHIGAN POWER COMPANY
Paid-in Capital
INDIANA MICHIGAN POWER COMPANY
Retained Earnings
INDIANA MICHIGAN POWER COMPANY
Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2024     $ 3,397 $ 57 $ 1,012 $ 2,328 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Common Stock Dividends $ (501) $ (500) (50)     (50)  
Net Income     58     58  
Ending balance at Mar. 31, 2025     3,405 57 1,012 2,336 0
Beginning balance at Dec. 31, 2024     3,397 57 1,012 2,328 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net Income     332        
Ending balance at Sep. 30, 2025     3,687 57 1,020 2,610 0
Beginning balance at Mar. 31, 2025     3,405 57 1,012 2,336 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Capital Contribution from Parent     7   7    
Common Stock Dividends (500) (499)          
Net Income     124     124  
Ending balance at Jun. 30, 2025     3,536 57 1,019 2,460 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Capital Contribution from Parent     1   1    
Common Stock Dividends (499) (499)          
Net Income     150     150  
Ending balance at Sep. 30, 2025     3,687 57 1,020 2,610 0
Beginning balance at Dec. 31, 2025 31,138   3,784 57 1,033 2,692 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Common Stock Dividends (520) (520)          
Net Income     148     148  
Ending balance at Mar. 31, 2026     3,932 57 1,033 2,840 2
Beginning balance at Dec. 31, 2025 31,138   3,784 57 1,033 2,692 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net Income     358        
Ending balance at Sep. 30, 2026 32,775   4,120 57 1,061 3,000 2
Beginning balance at Mar. 31, 2026     3,932 57 1,033 2,840 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Capital Contribution from Parent     25   25    
Common Stock Dividends (519) (519) (50)     (50)  
Net Income     97     97  
Ending balance at Jun. 30, 2026     4,004 57 1,058 2,887 2
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Capital Contribution from Parent     3   3    
Common Stock Dividends (519) $ (519)          
Net Income     113     113  
Ending balance at Sep. 30, 2026 $ 32,775   $ 4,120 $ 57 $ 1,061 $ 3,000 $ 2
[1] Cash dividends declared per AEP common share were $0.95 and $0.93 in 2026 and 2025, respectively.