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Dispositions (Narrative) (Details) $ in Millions			1 Months Ended	12 Months Ended
	Sep. 08, 2021 USD ($)	Jan. 28, 2021 USD ($) closing	Dec. 31, 2022 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 25, 2023 USD ($)
Duke Energy Indiana | Noncontrolling Interests
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage sold		19.90%
Number of closings | closing		2
Value of sale of parent interest	$ 1,030.0	$ 2,050.0	$ 1,030.0
Ownership interest sold (as a percentage)	11.05%		8.85%			8.85%
Proceed of purchase price for exchange in interest	50.00%
Transaction costs	$ 27.0		$ 6.0
Sale of noncontrolling interest	$ 545.0		$ 492.0
Discontinued Operations, Held-for-sale | Commercial Renewables Disposal Groups
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling interest balance				$ 18.0	$ 66.0
Loss on disposal				(14.0)	(1,725.0)	$ (1,748.0)
Loss on disposal of PPE				123.0	278.0
Discontinued Operations, Disposed of by Sale | Brookfield Renewable Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration to be received							$ 1,100.0
Discontinued Operations, Disposed of by Sale | Commercial Renewables Disposal Groups
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Closing period							18 months
Discontinued Operations, Disposed of by Sale | Commercial Renewables Disposal Groups | Accounts Receivable
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration to be received				$ 551.0
Discontinued Operations, Disposed of by Sale | Commercial Renewables Disposal Groups | Noncurrent assets
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration to be received					$ 531.0

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