v3.26.3
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN MEMBER’S EQUITY - AEP Transmission Holdco - USD ($)
$ in Millions
Total
Paid-in Capital
Retained Earnings
Noncontrolling Interests
AEP TRANSMISSION COMPANY, LLC
AEP TRANSMISSION COMPANY, LLC
Paid-in Capital
AEP TRANSMISSION COMPANY, LLC
Retained Earnings
AEP TRANSMISSION COMPANY, LLC
Noncontrolling Interests
Beginning balance at Dec. 31, 2024         $ 6,951 $ 3,101 $ 3,850 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Capital Contribution from AEP Member         32 32    
Dividends Paid to AEP Member         (42)   (42)  
Net Income $ 802   $ 800 $ 2 211   211  
Ending balance at Mar. 31, 2025         7,152 3,133 4,019 0
Beginning balance at Dec. 31, 2024         6,951 3,101 3,850 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income 3,091       1,033      
Ending balance at Sep. 30, 2025         7,713 4,934 1,734 1,045
Beginning balance at Mar. 31, 2025         7,152 3,133 4,019 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Capital Contribution from AEP Member         8 8    
Dividends Paid to AEP Member         (2,836)   (2,836)  
Midwest Transmission Holdings NCI Transaction 2,783 $ 1,791   992 2,783 1,791   992
Net Income 1,289   1,226 63 617   556 61
Ending balance at Jun. 30, 2025         7,724 4,932 1,739 1,053
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Capital Contribution from AEP Member         2 2    
Capital Contributions from NCI 34     34 34     34
Dividends Paid to AEP Member         (184)   (184)  
Dividends Paid to NCI (69)     (69) (68)     (68)
Net Income 1,000   972 28 205   179 26
Ending balance at Sep. 30, 2025         7,713 4,934 1,734 1,045
Beginning balance at Dec. 31, 2025         7,643 4,962 1,651 1,030
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Capital Contribution from AEP Member         233 233    
Capital Contributions from NCI 96     96 96     96
Dividends Paid to NCI (35)     (35) (33)     (33)
Net Income 903   874 29 210   183 27
Ending balance at Mar. 31, 2026         8,149 5,195 1,834 1,120
Beginning balance at Dec. 31, 2025         7,643 4,962 1,651 1,030
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income 2,868       659      
Ending balance at Sep. 30, 2026         8,619 5,348 2,081 1,190
Beginning balance at Mar. 31, 2026         8,149 5,195 1,834 1,120
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Capital Contribution from AEP Member         16 16    
Capital Contributions from NCI 60     60 31     31
Dividends Paid to AEP Member         (141)   (141)  
Dividends Paid to NCI (54)     (54) (54)     (54)
Net Income 747   713 34 223   192 31
Ending balance at Jun. 30, 2026         8,224 5,211 1,885 1,128
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Capital Contribution from AEP Member         137 137    
Capital Contributions from NCI 113     113 113     113
Dividends Paid to NCI (86)     (86) (81)     (81)
Net Income $ 1,218   $ 1,187 $ 31 226   196 30
Ending balance at Sep. 30, 2026         $ 8,619 $ 5,348 $ 2,081 $ 1,190