XML 105 R66.htm IDEA: XBRL DOCUMENT v3.23.2
Goodwill (Details) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Goodwill [Line Items]    
Goodwill $ 19,303,000,000 $ 19,303,000,000
Accumulated impairment charges 0 0
Duke Energy Ohio    
Goodwill [Line Items]    
Goodwill 920,000,000 920,000,000
Accumulated impairment charges 216,000,000 216,000,000
Progress Energy    
Goodwill [Line Items]    
Goodwill 3,655,000,000 3,655,000,000
Piedmont    
Goodwill [Line Items]    
Goodwill 49,000,000 49,000,000
Electric Utilities and Infrastructure    
Goodwill [Line Items]    
Goodwill 17,400,000,000 17,400,000,000
Electric Utilities and Infrastructure | Duke Energy Ohio    
Goodwill [Line Items]    
Goodwill 596,000,000 596,000,000
Electric Utilities and Infrastructure | Progress Energy    
Goodwill [Line Items]    
Accumulated impairment charges 0 0
Gas Utilities and Infrastructure    
Goodwill [Line Items]    
Goodwill 1,900,000,000 1,900,000,000
Gas Utilities and Infrastructure | Duke Energy Ohio    
Goodwill [Line Items]    
Goodwill 324,000,000 324,000,000
Gas Utilities and Infrastructure | Piedmont    
Goodwill [Line Items]    
Accumulated impairment charges $ 0 $ 0