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Public Utilities, Equity Ratio

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Site Contingency, Environmental Remediation, Number of Sites

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

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

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- Definition

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

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- Definition

Percentage of public utility's approved return on equity.

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No definition available.

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- Definition

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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No definition available.

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Period end amount of total net PPE.

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No definition available.

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- Definition

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

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- Definition

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							3 Months Ended								12 Months Ended
	Oct. 12, 2023 USD ($)	Apr. 28, 2023 USD ($)	Dec. 01, 2022 USD ($)	Sep. 19, 2022 USD ($)	Jul. 14, 2022 USD ($)	Oct. 01, 2021 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) site	Dec. 31, 2021 USD ($)	Apr. 27, 2022 USD ($)
Public Utilities, General Disclosures [Line Items]
Operating Revenues							$ 7,212	$ 7,994	$ 6,578	$ 7,276	$ 7,351	$ 7,842	$ 6,564	$ 7,011	$ 29,060	$ 28,768	$ 24,621
Operation, maintenance and other															5,625	5,734	5,703
Income tax expense (benefit)															(438)	(300)	(268)
Public utilities, property, plant and equipment, net							115,315				111,748				115,315	111,748
Impairment of assets and other charges															(85)	(434)	(353)
Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Operating Revenues															2,507	2,514	2,037
Operation, maintenance and other															478	523	479
Income tax expense (benefit)															(63)	21	(30)
Public utilities, property, plant and equipment, net							$ 9,759				$ 9,247				9,759	9,247
Impairment of assets and other charges															(3)	$ 10	(25)
Duke Energy Ohio \| Duke Energy Ohio Electric Base Rate Case \| Public Utilities Commission Of Ohio
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)						$ 55
Approved rate increase (decrease) amount by state commission				$ 23
Approved return on equity (as a percent)				9.50%
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			$ 49
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 \| Midwest Propane Caverns [Member]
Public Utilities, General Disclosures [Line Items]
Asset impairment charges																	$ 19
Public utilities, property, plant and equipment, net																		$ 7
Impairment of assets and other charges																$ 12
Duke Energy Ohio \| Duke Energy Kentucky Electric Base Rate Case \| KPSC
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)			$ 75
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%