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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) $ 584 542 542  
Other (3)      
Ending balance at Jun. 30, 2023   15,984 15,990 (6)
Beginning balance at Mar. 31, 2023   15,714 15,720 (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) (220) 270 270  
Other (1)      
Ending balance at Jun. 30, 2023   15,984 15,990 (6)
Beginning balance at Dec. 31, 2023   16,907 16,913 (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) 2,038 821 821  
Other 1 (20) (20)  
Ending balance at Jun. 30, 2024   17,708 17,714 (6)
Beginning balance at Mar. 31, 2024   17,337 17,343 (6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Net income (loss) 900 391 391  
Other $ 1 (20) (20)  
Ending balance at Jun. 30, 2024   $ 17,708 $ 17,714 $ (6)