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Amount of ROE remitted by NEP

No definition available.

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FERC Granted ROE

No definition available.

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Initial minimum base ROE to be reset by the FERC

No definition available.

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Maximum Base ROE reset by FERC

No definition available.

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Minimum base ROE reset by FERC

No definition available.

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New ROE by National Grid along with other NETOs who filed a brief supporting FERC's new methodology and confirming the illustrative numbers that FERC arrived at in its order addressing all four complaints

No definition available.

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Percentage of common equity ratio PIPUC used on used to determine thee allowed ROE

No definition available.

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The amount of regulatory liability increase recorded on the balance sheet due to return on equity reserve challenge.

No definition available.

Name:	ppl_RegulatoryLiabilityDueToROEReserve
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of after tax regulatory liability increase due to return on equity reserve challenge.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The amount of pre-tax regulatory liability increase due to return on equity reserve challenge.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Regulatory Matters Kentucky Activities Rate Case Proceedings [Abstract]

No definition available.

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Percentage of public utility's approved return on equity.

No definition available.

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Data Type:	dtr-types:percentItemType
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Data Type:	na
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Data Type:	na
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Data Type:	na
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Data Type:	na
Balance Type:
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