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- Definition

Public Utilities, Additional Approved Rate Increase (Decrease), Amount

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No definition available.

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- Definition

Requested Rider Revenue Increase

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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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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

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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 amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

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Regulatory Matters (Duke Energy Ohio Narrative) (Details) - USD ($) $ in Millions							1 Months Ended
	Oct. 16, 2020	Apr. 27, 2020	Jan. 31, 2020	Sep. 03, 2019	Apr. 13, 2018	Apr. 01, 2018	Mar. 31, 2017	Dec. 31, 2020	Jul. 23, 2020	Dec. 31, 2019	Jul. 12, 2019	Dec. 31, 2018	Sep. 28, 2018
Public Utilities, General Disclosures [Line Items]
Regulatory assets								$ 14,062		$ 15,018
Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets								649		598
Duke Energy Ohio \| RTO Realignment
Public Utilities, General Disclosures [Line Items]
Regulatory assets								37		40
Electric Base Rate Case \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)							$ 15
Requested return on equity, percentage							10.40%
Requested rate increase (decrease), amended, amount					$ (19)
Approved return on equity, percentage					9.84%
Requested capital structure, percentage					50.75%
Requested debt structure, percentage					49.25%
Approved rate increase (decrease) amount by state commission						$ (20)
MGP Cost Recovery - 2009 Through 2012 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets								55
MGP Cost Recovery - 2013 Through 2017 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets													$ 26
MGP Cost Recovery - 2018 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets												$ 20
MGP Cost Recovery - 2019 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets										$ 39
Duke Energy Kentucky Electric Base Rate Case \| KPSC \| Duke Energy Kentucky
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease)			$ 44	$ 46
Approved return on equity, percentage		9.25%
Approved rate increase (decrease) amount by state commission	$ 28	$ 24
Additional approved rate increase (decrease), amount	$ 4
Minimum \| Natural Gas Pipeline Extension \| Ohio Power Siting Board \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Estimated capital cost excluding AFUDC								163
Maximum \| Electric Base Rate Case \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Requested rider revenue increase					$ 10
Maximum \| Natural Gas Pipeline Extension \| Ohio Power Siting Board \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Estimated capital cost excluding AFUDC								$ 245
MGP Costs - Regulatory Disallowance \| MGP Cost Recovery - 2013 Through 2017 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets													$ 12
MGP Costs - Regulatory Disallowance \| MGP Cost Recovery - 2018 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets											$ 11
MGP Costs - Regulatory Disallowance \| MGP Cost Recovery - 2019 \| Public Utilities Commission Of Ohio \| Duke Energy Ohio
Public Utilities, General Disclosures [Line Items]
Regulatory assets									$ 4