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Commitments and Contingent Liabilities - Minimum Fuel Purchase Requirements - Additional Information (Details)	Dec. 31, 2024
PSEG Power
Long-Term Purchase Commitment [Line Items]
Coverage percentage of nuclear fuel commitments of uranium, enrichment, and fabrication requirements for current year	100.00%

X

- Definition

Coverage percentage of nuclear fuel commitments of uranium, enrichment, and fabrication requirements through following year

+ References

No definition available.

+ Details

Name:	peg_CoveragePercentageOfNuclearFuelCommitmentsOfUraniumEnrichmentAndFabricationRequirementsThroughFollowingYear
Namespace Prefix:	peg_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=peg_PSEGPowerLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: