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Public Utilities, Equity Ratio

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of public utility's approved rate increase (decrease) by regulatory agency.

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Percentage of public utility's approved return on equity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period end amount of total net PPE.

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Amount of public utility's requested rate increase (decrease) with regulatory agency.

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Percentage of public utility's requested return on equity.

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- Definition

The total amount of operating revenues recognized during the period.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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The amount of operating expenses for the period that are associated with the utility's normal revenue producing operation; including selling, general, and administrative expenses, costs incurred for routine plant repairs and maintenance, and operations.

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Regulatory Matters (Duke Energy Ohio Narrative) (Details) $ in Millions						12 Months Ended
	Dec. 02, 2024 USD ($)	Oct. 12, 2023 USD ($)	Aug. 18, 2023	Apr. 28, 2023 USD ($)	Sep. 19, 2022 USD ($)	Dec. 31, 2024 USD ($)	Aug. 17, 2024 USD ($)	Dec. 31, 2023 USD ($) site	Dec. 31, 2022 USD ($)
Public Utilities, General Disclosures [Line Items]
Operating Revenues						$ 30,357		$ 29,060	$ 28,768
Operation, maintenance and other						5,389		5,625	5,734
Income tax expense (benefit)						(590)		(438)	(300)
Public utilities, property, plant and equipment, net						123,303		115,315
Impairment of assets and other charges						(38)		(85)	(434)
Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Operating Revenues						2,545		2,507	2,514
Operation, maintenance and other						485		478	523
Income tax expense (benefit)						(64)		(63)	21
Public utilities, property, plant and equipment, net						10,244		9,759
Impairment of assets and other charges						0		$ (3)	10
Duke Energy Ohio \| Duke Energy Ohio Electric Base Rate Case \| Public Utilities Commission Of Ohio
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount by state commission					$ 23
Approved return on equity (as a percent)					9.50%
Duke Energy Ohio \| Duke Energy Ohio Electric Base Rate Case \| Public Utilities Commission Of Ohio \| Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)					50.50%
Duke Energy Ohio \| Energy Efficiency Cost Recovery \| Public Utilities Commission Of Ohio
Public Utilities, General Disclosures [Line Items]
Regulated electric revenue						14
Duke Energy Ohio \| Duke Energy Ohio Gas Base Rate Case \| Public Utilities Commission Of Ohio
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)				$ 32
Requested return on equity (as a percent)				9.60%
Duke Energy Ohio \| Duke Energy Ohio Gas Base Rate Case \| Public Utilities Commission Of Ohio \| Maximum
Public Utilities, General Disclosures [Line Items]
Equity ratio (as a percent)				52.32%
Duke Energy Ohio \| MGP Cost Recovery - 2009 Through 2012 \| Public Utilities Commission Of Ohio
Public Utilities, General Disclosures [Line Items]
Number of environmental remediation sites \| site								2
Duke Energy Ohio \| MGP Cost Recovery - 2013 Through 2019 \| Public Utilities Commission Of Ohio
Public Utilities, General Disclosures [Line Items]
Operating Revenues								$ 15
Operation, maintenance and other								58
Income tax expense (benefit)								72
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case \| KPSC
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount by state commission		$ 48
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case \| KPSC \| Maximum
Public Utilities, General Disclosures [Line Items]
Equity ratio (as a percent)		52.145%
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case, Electric Base Rates \| KPSC
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		9.75%
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case, Electric Riders \| KPSC
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)		9.65%
Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Operating Revenues						7,017		6,488	6,753
Operation, maintenance and other						1,388		1,379	1,475
Income tax expense (benefit)						(189)		(149)	(158)
Public utilities, property, plant and equipment, net						26,130		24,056
Impairment of assets and other charges						(6)		$ (29)	$ (7)
Duke Energy Progress \| 2022 North Carolina Rate Case \| NCUC
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount by state commission							$ 233
Approved return on equity (as a percent)			9.80%
Operation, maintenance and other						8
Impairment of assets and other charges						$ (28)
Duke Energy Progress \| 2022 North Carolina Rate Case \| NCUC \| Equity
Public Utilities, General Disclosures [Line Items]
Approved return on equity (as a percent)			53.00%
Duke Energy Kentucky \| Duke Energy Kentucky 2024 Electric Base Rate Case \| KPSC
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)	$ 70
Requested return on equity (as a percent)	10.85%
Equity ratio (as a percent)	52.728%
Requested rate increase (decrease), net of tax (as a percent)	14.70%