XML 85 R52.htm IDEA: XBRL DOCUMENT
v3.25.1

Retirement And Other Postretirement Benefits (Schedule of reclassifications out of accumulated other comprehensive income) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | $ 3,462 | $ 3,473
Amortization of Gains (Losses), Before Tax | 2,551 | 1,397
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | 6,013 | 4,870
Entergy Louisiana [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | 1,136 | 1,136
Amortization of Gains (Losses), Before Tax | 1,719 | 1,634
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | 2,855 | 2,770
Pension Plan [Member] | Nonqualified Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | (31) | (40)
Amortization of Gains (Losses), Before Tax | (108) | (80)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (139) | (120)
Pension Plan [Member] | Qualified Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | 0 | 0
Amortization of Gains (Losses), Before Tax | (411) | (1,138)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (411) | (1,138)
Pension Plan [Member] | Entergy Louisiana [Member] | Nonqualified Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | 0 | 0
Amortization of Gains (Losses), Before Tax | (1) | 0
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (1) | 0
Pension Plan [Member] | Entergy Louisiana [Member] | Qualified Plan |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | 0 | 0
Amortization of Gains (Losses), Before Tax | (91) | (104)
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | (91) | (104)
Other Postretirement Benefits Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | 3,493 | 3,513
Amortization of Gains (Losses), Before Tax | 3,070 | 2,615
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | 6,563 | 6,128
Other Postretirement Benefits Plan [Member] | Entergy Louisiana [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Amortization of Prior Service Cost Credit, Before Tax | 1,136 | 1,136
Amortization of Gains (Losses), Before Tax | 1,811 | 1,738
Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax | $ 2,947 | $ 2,874

X
- Definition The amount of gains or losses recognized in net periodic benefit cost, pre tax and including amounts capitalized. + References No definition available. + Details
Name: | etr_AmortizationOfGainsLossesBeforeTax
Namespace Prefix: | etr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, pre tax and including amounts capitalized. + References No definition available. + Details
Name: | etr_AmortizationOfPriorServiceCostCreditBeforeTax
Namespace Prefix: | etr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Pension and Other Postretirement Costs, Reclassification Out Of Accumulated Other Comprehensive Income, Before Tax + References No definition available. + Details
Name: | etr_PensionAndOtherPostretirementCostsReclassificationOutOfAccumulatedOtherComprehensiveIncomeBeforeTax
Namespace Prefix: | etr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=etr_EntergyLouisianaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | etr_PensionPlanClassificationAxis=us-gaap_NonqualifiedPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | etr_PensionPlanClassificationAxis=us-gaap_QualifiedPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |