Public Utilities, Basis Points, Increase, Percentage

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Public Utilities, Estimated Cost of Generation Facilities to be Built

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Public Utilities, Estimated Cost of Generation Facilities to be Built, Period

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Public Utilities, Investment in Transmission and Distribution

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Public Utilities, Number of Solar Plants Petition for Approval

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Public Utilities, Solar Generation Capacity Plants, in Megawatts

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Utilities, Future Investment in Infrastructure

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as noncurrent.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Cash received for the settlement of litigation during the current period.

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

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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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Regulatory Matters (Regulatory Matters Narrative - Duke Energy Florida) (Details) - Duke Energy Florida				6 Months Ended	12 Months Ended
	Jun. 15, 2022 USD ($)	May 04, 2021 USD ($)	Jul. 01, 2020 USD ($) plant MW	Jun. 30, 2022 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Apr. 11, 2022 USD ($)
Solar Project
Public Utilities, General Disclosures [Line Items]
Estimated cost of facilities			$ 1,000,000,000
Estimated cost of facilities period (in years)			3 years
FPSC
Public Utilities, General Disclosures [Line Items]
Number of solar plants \| plant			10
Generation capacity (MW) \| MW			750
2021 Settlement \| FPSC
Public Utilities, General Disclosures [Line Items]
Approved rate increase, amount				$ 67,000,000
Public utilities, approved equity capital structure, percentage		53.00%
Public utilities, approved debt capital structure, percentage		47.00%
Public utilities, basis points, increase, percentage		0.25%
Contract with customer, asset, after allowance for credit loss, noncurrent	$ 154,000,000	$ 173,000,000
Proceeds from legal settlements	$ 180,000,000
Future investment in infrastructure		$ 1,000,000,000
2021 Settlement \| FPSC \| Forecast
Public Utilities, General Disclosures [Line Items]
Approved rate increase, amount					$ 79,000,000	$ 49,000,000
2021 Settlement \| FPSC \| US Treasury Securities
Public Utilities, General Disclosures [Line Items]
Public utilities, basis points, increase, percentage		0.50%
2021 Settlement \| FPSC \| Minimum
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)		8.85%
2021 Settlement \| FPSC \| Minimum \| US Treasury Securities
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)		9.85%
2021 Settlement \| FPSC \| Maximum
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)		10.85%
2021 Settlement \| FPSC \| Maximum \| US Treasury Securities
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)		10.10%
2021 Settlement \| FPSC \| Weighted Average
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)		9.85%
Storm Protection Plan \| FPSC
Public Utilities, General Disclosures [Line Items]
Investment in transmission and distribution							$ 7,000,000,000