Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Narrative) (Details) $ in Thousands	1 Months Ended			3 Months Ended
	Apr. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Feb. 28, 2022 USD ($)	Jan. 01, 2022 USD ($)
Debt Instrument [Line Items]
Amount of Facility		$ 3,500,000		$ 3,500,000
Amount Drawn/ Outstanding		$ 150,000		$ 150,000
Commercial Paper Program [Member]
Debt Instrument [Line Items]
Debt, weighted average interest rate		0.48%		0.48%
Commercial Paper program limit		$ 2,000,000		$ 2,000,000
Commercial Paper Amount Outstanding		1,343,000		1,343,000
Credit Facility [Member]
Debt Instrument [Line Items]
Amount of Facility		3,500,000		3,500,000
Amount of total borrowing capacity against which fronting commitments exist		20,000		$ 20,000
Line of credit facility, commitment fee percentage				0.225%
Line of Credit Facility, Interest Rate During Period				1.81%
Entergy Arkansas [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		250,000		$ 250,000
Amount of total borrowing capacity against which fronting commitments exist		5,000		5,000
Letters of Credit Outstanding, Amount		300		$ 300
Entergy Arkansas [Member] | 4.20% Series mortgage bonds due April 2049
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 200,000
Debt instrument, interest rate, stated percentage		4.20%		4.20%
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		$ 450,000		$ 450,000
Amount of total borrowing capacity against which fronting commitments exist		$ 15,000		$ 15,000
Aggregate principal amount of system restoration bonds authorization requested										$ 3,186,000
Entergy Louisiana [Member] | Unsecured Term Loan due June 2023
Debt Instrument [Line Items]
Debt, weighted average interest rate		0.976%		0.976%
Proceeds from Issuance of Debt			$ 1,200,000
Entergy Mississippi [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		$ 200,000		$ 200,000
Letters of Credit Outstanding, Amount		400	200	400
Non-MISO letter of credit outstanding		1,000		1,000
Entergy Texas [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		200,000		200,000
Amount of total borrowing capacity against which fronting commitments exist		30,000		30,000
Letters of Credit Outstanding, Amount			$ 100
Entergy Texas [Member] | Hurricanes Laura and Delta and Winter Storm Uri
Debt Instrument [Line Items]
Aggregate principal amount of system restoration bonds authorization requested											$ 242,900
System Restoration Regulatory Asset											$ 13,300
System Energy [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		200,000		200,000
Entergy New Orleans [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		150,000		150,000
Amount of total borrowing capacity against which fronting commitments exist		10,000		10,000
System Energy VIE [Member]
Debt Instrument [Line Items]
Amount Drawn/ Outstanding		100,000		$ 100,000
Line of Credit Facility, Interest Rate During Period				1.17%
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		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.10%
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		82,100		$ 82,100
Line of Credit Facility, Interest Rate During Period				1.15%
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		30,800		$ 30,800
Line of Credit Facility, Interest Rate During Period				1.14%
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		$ 139,000
Amount Drawn/ Outstanding		$ 139,000		$ 139,000
Debt, weighted average interest rate		1.72%		1.72%
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		0.65
Maximum [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Consolidated debt ratio		0.65		0.65
Consolidated debt ratio of total capitalization				70.00%
Maximum [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Consolidated debt ratio		0.65		0.65
Consolidated debt ratio of total capitalization				70.00%
Maximum [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Consolidated debt ratio		0.65		0.65
Maximum [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Consolidated debt ratio		0.65		0.65
Maximum [Member] | System Energy [Member]
Debt Instrument [Line Items]
Consolidated debt ratio		0.65		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		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		$ 350,000
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.71%
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Amount of Facility		150,000		$ 150,000
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.58%
Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Amount of Facility		150,000		$ 150,000
Letters of Credit Outstanding, Amount		1,300		1,300
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.71%
Credit Facility Of Thirty Seven Point Five Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility		37,500		$ 37,500
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.96%
Credit Facility Of Thirty Five Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility		35,000		$ 35,000
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.96%
Credit Facility Of Ten Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility		10,000		$ 10,000
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				1.96%
Credit Facility Of Twenty Five Million [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Amount of Facility		25,000		$ 25,000
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				3.00%
Credit Facility Of Twenty Five Million [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Amount of Facility		25,000		$ 25,000
Letters of Credit Outstanding, Amount		0		0
Amount Drawn/ Outstanding		0		$ 0
Line of Credit Facility, Interest Rate During Period				2.08%
Subsequent Event [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility	$ 95,000
Subsequent Event [Member] | Entergy Texas [Member] | 3.697% Senior Secured System Restoration Bonds Series 2022-A Due December 2036
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	$ 190,850
Debt instrument, interest rate, stated percentage	3.697%
Subsequent Event [Member] | Entergy Texas [Member] | 3.051% Senior Secured System Restoration Bonds Series 2022-A Due December 2028
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	$ 100,000
Debt instrument, interest rate, stated percentage	3.051%
Subsequent Event [Member] | Entergy Texas [Member] | Aggregate Senior secured restoration bonds (securitization bonds)
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	$ 290,850
Subsequent Event [Member] | Entergy Texas [Member] | Aggregate Senior secured restoration bonds (securitization bonds) | Hurricanes Laura and Delta and Winter Storm Uri
Debt Instrument [Line Items]
Proceeds from Issuance of Debt	290,850
Subsequent Event [Member] | Entergy Texas [Member] | Tranche A-1 3.051% due December 2028
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months									$ 12,300
Long-term Debt, Maturities, Repayments of Principal in Year Two								$ 17,800
Long-term Debt, Maturities, Repayments of Principal in Year Three							$ 18,300
Long-term Debt, Maturities, Repayments of Principal in Year Four						$ 18,800
Long-term Debt, Maturities, Repayments of Principal in Year Five					$ 19,400
Subsequent Event [Member] | Credit Facility Of One Hundred And Fifty Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Amount of Facility	$ 150,000
Credit Facility of Sixty Five Million [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount		2,300		$ 2,300
Uncommitted Credit Facility		$ 65,000		$ 65,000