Public Utilities, Combined Cycle Plants, in Megawatts

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Public Utilities, Operating License Extension, Period

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- Definition

Public Utilities, Permitted Rate Increase (Decrease) Request, Deviation In Earned Returns, Percent

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- Definition

Public Utilities, Proposed Rate, Period

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- Definition

Public Utilities, Settlement Rate, Amount

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Public Utilities, Settlement Rate, Period

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- Definition

Percentage of public utility's approved equity to capital, including debt and equity.

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- Definition

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

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Percentage 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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Regulatory Matters (Regulatory Matters Narrative - Duke Energy Progress) (Details) $ in Millions						1 Months Ended		12 Months Ended					24 Months Ended	36 Months Ended
	Mar. 13, 2026 USD ($)	Nov. 20, 2025	Apr. 08, 2025	Feb. 07, 2025 USD ($) MW	Aug. 18, 2023 USD ($)	Apr. 30, 2023	Oct. 31, 2022	Nov. 19, 2027 USD ($)	Nov. 19, 2026 USD ($)	Aug. 17, 2026 USD ($)	Aug. 17, 2025 USD ($)	Aug. 17, 2024 USD ($)	Nov. 19, 2027 USD ($)	Aug. 17, 2026 USD ($)	Jan. 30, 2026 MW
2022 North Carolina Rate Case \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Settlement rate, period (in years)					3 years		3 years
Proposed rate period (in years)						3 years
Approved rate increase (decrease), amount											$ 126	$ 233
Settlement rate, amount					$ 12,200
Approved return on equity percentage (as a percent)					9.80%
Approved equity capital structure, percentage (as a percent)					53.00%
2022 North Carolina Rate Case \| NCUC \| Duke Energy Progress \| If approved
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease), amount										$ 135				$ 494
2022 North Carolina Rate Case, Retail Allocated \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Settlement rate, amount					$ 3,500
2025 North Carolina Rate Case \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)		10.95%
2025 North Carolina Rate Case \| NCUC \| Duke Energy Progress \| Equity
Public Utilities, General Disclosures [Line Items]
Requested return on equity (as a percent)		53.00%
2025 North Carolina Rate Case \| NCUC \| Duke Energy Progress \| If approved
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease), amount								$ 200	$ 529				$ 729
Requested rate increase (decrease) (as a percent)													15.10%
South Carolina Electric Rate Stabilization Adjustment Filing \| PSCSC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)	9.99%
Requested rate increase (decrease), amount	$ 37
Requested rate increase (decrease) (as a percent)	5.50%
Deviation in earned returns, up to (percent)	0.50%
Person County Cycle CPCN Proceeding \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Generation capacity (MW) \| MW				1,360											2,720
Requested rate increase (decrease), amount				$ 113
Requested rate increase (decrease) (as a percent)				2.60%
Person County Cycle CPCN Proceeding \| NCUC \| NCEMC
Public Utilities, General Disclosures [Line Items]
Generation capacity (MW) \| MW				225
Person County Cycle CPCN Proceeding \| NCUC \| NCEMC \| Maximum
Public Utilities, General Disclosures [Line Items]
Generation capacity (MW) \| MW				450
Robinson Subsequent License Renewal \| NRC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Operating license extension (in years)			20 years