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Condensed Consolidated Statements of Changes in Equity - Duke Energy Progress - USD ($)
$ in Millions
Total
Duke Energy Progress
Duke Energy Progress
Member's Equity
Beginning balance at Dec. 31, 2022     $ 10,309
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Net income (loss) $ 584 $ 309 309
Ending balance at Jun. 30, 2023     10,618
Beginning balance at Mar. 31, 2023     10,478
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Net income (loss) (220) 140 140
Ending balance at Jun. 30, 2023     10,618
Beginning balance at Dec. 31, 2023   10,807 10,807
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Net income (loss) 2,038 495 495
Ending balance at Jun. 30, 2024   11,302 11,302
Beginning balance at Mar. 31, 2024     11,079
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Net income (loss) $ 900 223 223
Ending balance at Jun. 30, 2024   $ 11,302 $ 11,302