Condensed Consolidated Statements of Cash Flows - Duke Energy Florida (Parenthetical) - Deferred Fuel Regulatory Assets $ in Millions	9 Months Ended
Sep. 30, 2022 USD ($)
Increase in regulatory assets	$ 2,200
Duke Energy Florida
Increase in regulatory assets	$ 746

The increase (decrease) during the reporting period in the value of other assets that are created when regulatory agencies permits public utilities to defer costs to the balance sheet.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Name:	us-gaap_IncreaseDecreaseInOtherRegulatoryAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration