Dispositions (Income Statement) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax benefit	$ (50)	$ (359)	$ (503)
Income (Loss) from discontinued operations	10	(1,455)	(1,323)
Add: Net (income) loss attributable to noncontrolling interest included in discontinued operations	(3)	64	108
Net income (loss) from discontinued operations attributable to Duke Energy Corporation	7	(1,391)	(1,215)
Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from discontinued operations	10	(1,455)	(1,323)
Discontinued Operations, Held-for-sale | Commercial Renewables Disposal Groups
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues	4	330	465
Operation, maintenance and other	22	302	337
Depreciation and amortization	0	0	201
Property and other taxes	2	45	36
Other income and expenses, net	0	(8)	2
Interest expense	4	65	10
Loss on disposal	14	1,725	1,748
Loss before income taxes	(38)	(1,815)	(1,865)
Income tax benefit	(50)	(358)	(516)
Income (Loss) from discontinued operations	12	(1,457)	(1,349)
Add: Net (income) loss attributable to noncontrolling interest included in discontinued operations	(3)	64	108
Net income (loss) from discontinued operations attributable to Duke Energy Corporation	$ 9	$ (1,393)	$ (1,241)