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Goodwill	9 Months Ended
Goodwill	Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	GOODWILL Duke Energy Duke Energy's Goodwill balance of $19.0 billion is allocated $17.4 billion to EU&I and $1.6 billion to GU&I on Duke Energy's Condensed Consolidated Balance Sheets at September 30, 2025, and December 31, 2024. There are no accumulated impairment charges. On July 27, 2025, Piedmont entered into a purchase agreement for the sale of Piedmont's Tennessee business. In the third quarter of 2025, Duke Energy reclassified the Piedmont Tennessee Disposal Group to assets held for sale. As a result, $294 million of Duke Energy’s Goodwill balance that is allocated to the Piedmont Tennessee Disposal Group was reclassified to noncurrent assets held for sale on Duke Energy's Condensed Consolidated Balance Sheets. See Note 2 for additional information. Duke Energy Ohio Duke Energy Ohio's Goodwill balance of $920 million, allocated $596 million to EU&I and $324 million to GU&I, is presented net of accumulated impairment charges of $216 million on the Condensed Consolidated Balance Sheets at September 30, 2025, and December 31, 2024. Progress Energy Progress Energy's Goodwill is included in the EU&I segment and there are no accumulated impairment charges. Piedmont Piedmont's Goodwill is included in the GU&I segment and there are no accumulated impairment charges. On July 27, 2025, Piedmont entered into a purchase agreement for the sale of Piedmont's Tennessee business. In the third quarter of 2025, $10 million of Piedmont’s Goodwill balance that is allocated to the Piedmont Tennessee Disposal Group was reclassified to noncurrent assets held for sale on Piedmont's Condensed Consolidated Balance Sheets. See Note 2 for additional information. Impairment Testing Duke Energy, Progress Energy, Duke Energy Ohio and Piedmont are required to perform an annual goodwill impairment test as of the same date each year and, accordingly, perform their annual impairment testing of goodwill as of August 31. Duke Energy, Progress Energy, Duke Energy Ohio and Piedmont update their test between annual tests if events or circumstances occur that would more likely than not reduce the fair value of a reporting unit below its carrying value. As the fair value for Duke Energy, Progress Energy, Duke Energy Ohio and Piedmont exceeded their respective carrying values at the date of the annual impairment analysis, no goodwill impairment charges were recorded in the third quarter of 2025.