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Condensed Consolidated Statements of Changes in Equity - Duke Energy Carolinas - USD ($)
$ in Millions
Total
Duke Energy Carolinas
Duke Energy Carolinas
Member's Equity
Duke Energy Carolinas
Net Losses on Cash Flow Hedges
Beginning balance at Dec. 31, 2022   $ 15,442 $ 15,448 $ (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) $ 1,836 1,121 1,121  
Other (1) (3) (3)  
Ending balance at Sep. 30, 2023   16,560 16,566 (6)
Beginning balance at Jun. 30, 2023   15,984 15,990 (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) 1,252 579 579  
Other 2 (3) (3)  
Ending balance at Sep. 30, 2023   16,560 16,566 (6)
Beginning balance at Dec. 31, 2023   16,907 16,913 (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) 3,319 1,405 1,405  
Other (2)      
Ending balance at Sep. 30, 2024   18,312 18,318 (6)
Beginning balance at Jun. 30, 2024   17,708 17,714 (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) 1,281 584 584  
Other $ (3) 20 20  
Ending balance at Sep. 30, 2024   $ 18,312 $ 18,318 $ (6)