Public Utilities, Actual Storm Costs

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- Definition

Public Utilities, Approved Plan, Restoration Cost Reduction

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Public Utilities, Approved Plan, Restoration Cost Reduction Period

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- Definition

Public Utilities, Basis Points, Increase, Percentage

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- Definition

Public Utilities, Estimated Cost of Generation Facilities to be Built

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- Definition

Public Utilities, Investment in Transmission and Distribution

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- Definition

Public Utilities, Number Of Impacted Customers

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- Definition

Public Utilities, Number Of Outages

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- Definition

Public Utilities, Number of Solar Plants Petition for Approval

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- Definition

Public Utilities, Solar Generation Capacity Plants, in Megawatts

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- Definition

Utilities, Future Investment in Infrastructure

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- Definition

Carrying amount as of the balance sheet date of the portion of the reserved funds established by a utility from customer payments to cover the repair costs of damages from major storms, which repairs are expected to be incurred beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
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-Name Accounting Standards Codification
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479837/606-10-45-3

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Carrying amount as of the balance sheet date of capitalized storm costs of a regulated entity that are expected to be recoverable through rate adjustments after one year or beyond the normal operating cycle, if longer.

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Cash received for the settlement of litigation during the current period.

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- Definition

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

+ References

No definition available.

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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 interim rate increase (decrease) allowed while waiting final decision of regulatory agency.

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

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Regulatory Matters (Regulatory Matters Narrative - Duke Energy Florida) (Details) outage in Millions								12 Months Ended
	Oct. 16, 2023 USD ($)	Jan. 23, 2023 USD ($)	Oct. 17, 2022 USD ($)	Oct. 04, 2022 USD ($)	Jun. 15, 2022 USD ($)	May 04, 2021 USD ($)	Jul. 01, 2020 USD ($) plant MW	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 29, 2023 USD ($)	Aug. 30, 2023 outage	Jun. 30, 2023 USD ($)	Sep. 28, 2022 outage	Sep. 27, 2022 USD ($)	Apr. 11, 2022 USD ($)
Duke Energy Florida \| Solar Project
Public Utilities, General Disclosures [Line Items]
Estimated cost of facilities							$ 1,000,000,000
FPSC \| Duke Energy Florida
Public Utilities, General Disclosures [Line Items]
Number of solar plants \| plant							10
Generation capacity (MW) \| MW							750
2021 Settlement \| FPSC \| Duke Energy Florida
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease), amount										$ 67,000,000
Public utilities, approved equity capital structure, percentage (as a percent)						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					$ 94,000,000
Proceeds from legal settlements					$ 180,000,000
Requested rate increase (decrease), amount			$ (56,000,000)
Future investment in infrastructure						$ 1,000,000,000
2021 Settlement \| FPSC \| Duke Energy Florida \| US Treasury Securities
Public Utilities, General Disclosures [Line Items]
Public utilities, basis points, increase, percentage						0.50%
2021 Settlement \| FPSC \| Duke Energy Florida \| Minimum
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)						8.85%
2021 Settlement \| FPSC \| Duke Energy Florida \| Minimum \| US Treasury Securities
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)						9.85%
2021 Settlement \| FPSC \| Duke Energy Florida \| Maximum
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)						10.85%
2021 Settlement \| FPSC \| Duke Energy Florida \| Maximum \| US Treasury Securities
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)						10.10%
2021 Settlement \| FPSC \| Duke Energy Florida \| Weighted Average
Public Utilities, General Disclosures [Line Items]
Approved return on equity percentage (as a percent)						9.85%
2021 Settlement \| FPSC \| Duke Energy Florida \| Forecast
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease), amount								$ 79,000,000	$ 49,000,000
Contract with customer, asset, after allowance for credit loss, noncurrent									$ 79,000,000
Storm Protection Plan \| FPSC \| Duke Energy Florida
Public Utilities, General Disclosures [Line Items]
Investment in transmission and distribution																	$ 7,000,000,000
Cost reduction to transmission loop				$ 80,000,000
Cost reduction period (in years)				10 years
Hurricane Ian
Public Utilities, General Disclosures [Line Items]
Actual storm costs												$ 431,000,000
Hurricane Ian \| FPSC \| Duke Energy Florida \| Hurricane Ian
Public Utilities, General Disclosures [Line Items]
Number of outages \| outage															1.1
Deferred storm coats											357,000,000
Storm reserves														$ 132,000,000		$ 107,000,000
Interim recovery payments		$ 442,000,000
Hurricane Idalia \| FPSC \| Duke Energy Florida \| Hurricane Ian \| Subsequent event
Public Utilities, General Disclosures [Line Items]
Interim recovery payments	$ 74,000,000
Hurricane Idalia, Retail Portion \| FPSC \| Duke Energy Florida \| Hurricane Ian \| Subsequent event
Public Utilities, General Disclosures [Line Items]
Interim recovery payments	92,000,000
Hurricane Idalia \| FPSC \| Duke Energy Florida \| Hurricane Ian
Public Utilities, General Disclosures [Line Items]
Deferred storm coats											$ 96,000,000
Number of impacted customers \| outage													0.2
Hurricane Idalia \| FPSC \| Duke Energy Florida \| Hurricane Ian \| Subsequent event
Public Utilities, General Disclosures [Line Items]
Interim recovery payments	$ 166,000,000