Dispositions (Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from discontinued operations	$ 25	$ (152)	$ 12	$ (1,316)
Add: Net (income) loss attributable to noncontrolling interest included in discontinued operations	(3)	(38)	(3)	33
Net income (loss) from discontinued operations attributable to Duke Energy Corporation	22	(190)	9	(1,283)
Discontinued Operations, Held-for-sale \| Commercial Renewables
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating revenues	2	103	9	293
Operation, maintenance and other	3	93	19	270
Property and other taxes	0	8	1	27
Other income and expenses, net	0	(2)	0	(9)
Interest expense	1	10	3	53
Loss on disposal	17	169	22	1,603
Loss before income taxes	(19)	(179)	(36)	(1,669)
Income tax benefit	(44)	(27)	(48)	(353)
Income (Loss) from discontinued operations	25	(152)	12	(1,316)
Add: Net (income) loss attributable to noncontrolling interest included in discontinued operations	(3)	(38)	(3)	33
Net income (loss) from discontinued operations attributable to Duke Energy Corporation	$ 22	$ (190)	$ 9	$ (1,283)

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