Consolidated Statements of Cash Flows (Parenthetical) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Net collections of deferred fuel regulatory assets	$ 346
Duke Energy Carolinas
Net collections of deferred fuel regulatory assets	14
Progress Energy
Net collections of deferred fuel regulatory assets	139
Duke Energy Florida
Net collections of deferred fuel regulatory assets	162
Duke Energy Indiana
Net collections of deferred fuel regulatory assets	$ 175