Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Narrative) (Details) $ in Thousands	1 Months Ended					6 Months Ended
	Jul. 31, 2023 USD ($)	May 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jan. 31, 2023 USD ($)	Nov. 30, 2021 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Amount of Facility						$ 3,500,000
Amount Drawn/ Outstanding						$ 150,000
Commercial Paper Program [Member]
Debt Instrument [Line Items]
Debt, weighted average interest rate						5.19%
Commercial Paper program limit						$ 2,000,000
Commercial Paper Amount Outstanding						1,108,400
Credit Facility [Member]
Debt Instrument [Line Items]
Amount of Facility						3,500,000
Amount of total borrowing capacity against which fronting commitments exist						$ 20,000
Line of credit facility, commitment fee percentage						0.225%
Line of Credit Facility, Interest Rate During Period						6.34%
Entergy Arkansas [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings						$ 250,000
Amount of total borrowing capacity against which fronting commitments exist						5,000
Letters of Credit Outstanding, Amount						5,900
Entergy Arkansas [Member] | 5.15% Series mortgage bonds due January 2033
Debt Instrument [Line Items]
Proceeds from Issuance of Debt				$ 425,000
Debt instrument, interest rate, stated percentage				5.15%
Entergy Arkansas [Member] | Mortgage Bonds Three Point Zero Five Percent Series Due June Two Thousand Twenty Three
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage				3.05%
Repayments of Debt				$ 250,000
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings						450,000
Amount of total borrowing capacity against which fronting commitments exist						15,000
Entergy Mississippi [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings						200,000
Letters of Credit Outstanding, Amount							$ 200
Non-MISO letter of credit outstanding						9,200
Entergy Mississippi [Member] | 5.0% Series mortgage bonds due September 2033
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 300,000
Debt instrument, interest rate, stated percentage		5.00%
Entergy Mississippi [Member] | 3.10% Series mortgage bonds due July 2023
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		3.10%
Repayments of Debt		$ 250,000
Entergy Mississippi [Member] | Unsecured Term Loan due December 2023
Debt Instrument [Line Items]
Repayments of Debt		50,000
Entergy Texas [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings						200,000
Amount of total borrowing capacity against which fronting commitments exist						30,000
Letters of Credit Outstanding, Amount							2,400
System Energy [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings						200,000
System Energy [Member] | 6.00% Series mortgage bonds due April 2028
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 325,000
Debt instrument, interest rate, stated percentage			6.00%
System Energy [Member] | Unsecured Term Loan due November 2023
Debt Instrument [Line Items]
Repayments of Debt			$ 50,000
System Energy [Member] | 4.10% Series mortgage bonds due April 2023
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			4.10%
Repayments of Debt			$ 250,000
Entergy New Orleans [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings						150,000
Amount of total borrowing capacity against which fronting commitments exist						10,000
Letters of Credit Outstanding, Amount							200
Amount						8,279	$ 8,279
Entergy New Orleans [Member] | Unsecured term loan due June 2024
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 15,000
Debt instrument, interest rate, stated percentage		6.25%
Entergy New Orleans [Member] | Unsecured term loan due May 2023
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					$ 70,000
Debt instrument, interest rate, stated percentage					2.50%
System Energy VIE [Member]
Debt Instrument [Line Items]
Amount Drawn/ Outstanding						$ 37,800
Line of Credit Facility, Interest Rate During Period						5.79%
Line of credit facility commitment fee as a percentage of undrawn commitment amount						0.10%
Entergy Arkansas VIE [Member]
Debt Instrument [Line Items]
Amount Drawn/ Outstanding						$ 22,500
Line of Credit Facility, Interest Rate During Period						5.93%
Line of credit facility commitment fee as a percentage of undrawn commitment amount						0.10%
Entergy Louisiana Waterford VIE [Member]
Debt Instrument [Line Items]
Amount Drawn/ Outstanding						$ 49,800
Line of Credit Facility, Interest Rate During Period						5.82%
Line of credit facility commitment fee as a percentage of undrawn commitment amount						0.10%
Entergy Louisiana River Bend VIE [Member]
Debt Instrument [Line Items]
Amount Drawn/ Outstanding						$ 56,400
Line of Credit Facility, Interest Rate During Period						5.92%
Line of credit facility commitment fee as a percentage of undrawn commitment amount						0.10%
Entergy Nuclear Vermont Yankee
Debt Instrument [Line Items]
Amount of Facility						$ 139,000
Amount Drawn/ Outstanding						$ 139,000
Debt, weighted average interest rate						6.28%
Line of credit facility commitment fee as a percentage of undrawn commitment amount						0.20%
Maximum [Member]
Debt Instrument [Line Items]
Line of credit facility, commitment fee percentage						0.375%
Consolidated debt ratio						0.65
Maximum [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Consolidated debt ratio						0.65
Consolidated debt ratio of total capitalization						70.00%
Maximum [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Consolidated debt ratio						0.65
Consolidated debt ratio of total capitalization						70.00%
Maximum [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Consolidated debt ratio						0.65
Maximum [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Consolidated debt ratio						0.65
Maximum [Member] | System Energy [Member]
Debt Instrument [Line Items]
Consolidated debt ratio						0.65
Consolidated debt ratio of total capitalization						70.00%
Maximum [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Consolidated debt ratio						0.65
Minimum [Member]
Debt Instrument [Line Items]
Line of credit facility, commitment fee percentage						0.075%
Credit Facility Of Three Hundred Fifty Million [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 350,000
Letters of Credit Outstanding, Amount						0
Amount Drawn/ Outstanding						$ 0
Line of Credit Facility, Interest Rate During Period						6.45%
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 150,000
Letters of Credit Outstanding, Amount						0
Amount Drawn/ Outstanding						$ 75,000
Line of Credit Facility, Interest Rate During Period						6.33%
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 150,000
Letters of Credit Outstanding, Amount						0
Amount Drawn/ Outstanding						$ 0
Line of Credit Facility, Interest Rate During Period						6.33%
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 150,000
Letters of Credit Outstanding, Amount						1,100
Amount Drawn/ Outstanding						$ 0
Line of Credit Facility, Interest Rate During Period						6.45%
Credit Facility Of Ten Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 10,000
Letters of Credit Outstanding, Amount						0
Amount Drawn/ Outstanding						$ 0
Line of Credit Facility, Interest Rate During Period						6.70%
Credit Facility Of Twenty Five Million [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 25,000
Letters of Credit Outstanding, Amount						0
Amount Drawn/ Outstanding						$ 0
Line of Credit Facility, Interest Rate During Period						7.02%
Credit Facility Of Twenty Five Million [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Amount of Facility						$ 25,000
Letters of Credit Outstanding, Amount						0
Amount Drawn/ Outstanding						$ 0
Line of Credit Facility, Interest Rate During Period						6.83%
Subsequent Event [Member] | Entergy New Orleans [Member] | 3.90% Series mortgage bond due July 2023
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.90%
Repayments of Debt	$ 100,000
Credit Facility of Sixty Five Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount						$ 6,700
Uncommitted Credit Facility						$ 65,000