Public Utilities, Combined Cycle Plants, in Megawatts

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Public Utilities, Combined Cycle Plants, in Megawatts, Co-Owned

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Public Utilities, Operating License Extension, Period

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Public Utilities, Operating License, Period

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Public Utilities, Proposed Rate, Period

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Public Utilities, Settlement Rate, Amount

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Public Utilities, Settlement Rate, Period

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Face (par) amount of debt instrument at time of issuance.

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

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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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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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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 (Regulatory Matters Narrative - Duke Energy Progress) (Details)					1 Months Ended		3 Months Ended		12 Months Ended
	Apr. 08, 2025	Apr. 07, 2025	Feb. 07, 2025 USD ($) MW	Aug. 18, 2023 USD ($)	Apr. 30, 2023	Oct. 31, 2022	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Aug. 17, 2027 USD ($)	Aug. 17, 2026 USD ($)	Aug. 17, 2025 USD ($)	Aug. 17, 2024 USD ($)
Public Utilities, General Disclosures [Line Items]
Operation, maintenance and other							$ 1,499,000,000	$ 1,380,000,000
Debt issuances							3,200,000,000
Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Operation, maintenance and other							398,000,000	$ 375,000,000
Debt issuances							$ 2,100,000,000
Nuclear Regulatory Commission
Public Utilities, General Disclosures [Line Items]
Operating license extension (in years)							20 years
2022 North Carolina Rate Case \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Proposed rate period (in years)					3 years
Settlement rate, amount				$ 12,200,000,000
Settlement rate, period (in years)				3 years		3 years
Approved return on equity percentage (as a percent)				9.80%
Public utilities, approved equity capital structure, percentage (as a percent)				53.00%
Approved rate increase (decrease), amount												$ 233,000,000
2022 North Carolina Rate Case \| NCUC \| Duke Energy Progress \| Forecast
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease), amount									$ 494,000,000	$ 135,000,000	$ 126,000,000
2022 North Carolina Rate Case, Retail Allocated \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Settlement rate, amount				$ 3,500,000,000
Person County Cycle CPCN Proceeding \| NCUC \| Duke Energy Progress
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease), amount			$ 113,000,000
Generation capacity (MW) \| MW			1,360
Generation capacity, co-owned (MW) \| MW			225
Requested rate increase (decrease) (as a percent)			2.60%
Robinson Subsequent License Renewal \| Nuclear Regulatory Commission \| Duke Energy Progress \| Subsequent event
Public Utilities, General Disclosures [Line Items]
Operating license extension (in years)	20 years
Operating license (in years)	80 years	60 years