Consolidated Statements of Cash Flows (Parenthetical) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)
Under-collected deferred fuel regulatory assets	$ 2,600
Duke Energy Carolinas
Under-collected deferred fuel regulatory assets	1,300
Progress Energy
Under-collected deferred fuel regulatory assets	1,300
Duke Energy Progress
Under-collected deferred fuel regulatory assets	402
Duke Energy Florida
Under-collected deferred fuel regulatory assets	$ 942