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Risk Management and Fair Values (Narrative) (Details) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2024 USD ($) GWh MMBTU | Dec. 31, 2023 USD ($)
Letters of Credit Outstanding, Amount | $ | $ 3.0 | $ 2.0
Gas Hedge Contracts [Member] |  |
Maximum Length of Time Hedged in Cash Flow Hedge | 9 months |
Volume Of Natural Gas Swaps Outstanding | MMBTU | 10,988,500 |
Gas Hedge Contracts [Member] | Entergy Louisiana [Member] |  |
Volume Of Natural Gas Swaps Outstanding | MMBTU | 0 |
Gas Hedge Contracts [Member] | Entergy Mississippi [Member] |  |
Maximum Length of Time Hedged in Cash Flow Hedge | 9 months |
Volume Of Natural Gas Swaps Outstanding | MMBTU | 10,988,500 |
Gas Hedge Contracts [Member] | Entergy New Orleans [Member] |  |
Volume Of Natural Gas Swaps Outstanding | MMBTU | 0 |
Financial Transmission Rights (FTRs) [Member] |  |
Volume of Financial Transmission Rights Outstanding | 133,533 |
Financial Transmission Rights (FTRs) [Member] | Entergy Arkansas [Member] |  |
Letters of Credit Outstanding, Amount | $ |  | 1.2
Volume of Financial Transmission Rights Outstanding | 31,900 |
Financial Transmission Rights (FTRs) [Member] | Entergy Louisiana [Member] |  |
Letters of Credit Outstanding, Amount | $ |  | 0.5
Volume of Financial Transmission Rights Outstanding | 57,200 |
Financial Transmission Rights (FTRs) [Member] | Entergy Mississippi [Member] |  |
Letters of Credit Outstanding, Amount | $ |  | 0.3
Volume of Financial Transmission Rights Outstanding | 19,179 |
Financial Transmission Rights (FTRs) [Member] | Entergy New Orleans [Member] |  |
Volume of Financial Transmission Rights Outstanding | 5,469 |
Financial Transmission Rights (FTRs) [Member] | Entergy Texas [Member] |  |
Letters of Credit Outstanding, Amount | $ |  | $ 0.1
Volume of Financial Transmission Rights Outstanding | 19,448 |

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- Definition Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 30 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480870/815-30-50-1 + Details
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