Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Narrative) (Details) - USD ($)	1 Months Ended					4 Months Ended	6 Months Ended
	Dec. 31, 2029	Jun. 30, 2024	May 31, 2024	Apr. 30, 2024	Mar. 31, 2024	Oct. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount		$ 3,000,000					$ 3,000,000	$ 2,000,000
Junior subordinated debentures due December 2054
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 1,200,000,000
Debt Instrument, Interest Rate, Stated Percentage			7.125%
Commercial Paper [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate		5.67%					5.67%
Commercial Paper program limit		$ 2,000,000,000					$ 2,000,000,000
Commercial Paper		932,400,000					932,400,000
Entergy Arkansas [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		$ 250,000,000					$ 250,000,000
Entergy Arkansas [Member] | 5.45% Series mortgage bonds due June 2034
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 400,000,000
Debt Instrument, Interest Rate, Stated Percentage			5.45%
Entergy Arkansas [Member] | 5.75% Series mortgage bonds due June 2054
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 400,000,000
Debt Instrument, Interest Rate, Stated Percentage			5.75%
Entergy Arkansas [Member] | 3.70% Series mortgage bonds due June 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.70%					3.70%
Repayments of Debt		$ 375,000,000
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		450,000,000					$ 450,000,000
Entergy Louisiana [Member] | Mortgage Bonds 5.35% Series due March 2034 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage					5.35%
Entergy Louisiana [Member] | Mortgage Bonds 5.70% Series due March 2054 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					$ 700,000,000
Debt Instrument, Interest Rate, Stated Percentage					5.70%
Entergy Louisiana [Member] | Mortgage Bonds 5.40% Series due November 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				5.40%
Repayments of Debt				$ 400,000,000
Entergy Mississippi [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		$ 200,000,000					$ 200,000,000
Entergy Mississippi [Member] | 5.85% Series mortgage bonds due June 2054
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage			5.85%
Entergy Mississippi [Member] | 3.75% Series mortgage bonds due July 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.75%					3.75%
Repayments of Debt		$ 100,000,000
Entergy Texas [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		200,000,000					$ 200,000,000
System Energy [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		200,000,000					200,000,000
Entergy New Orleans [Member]
Debt Instrument [Line Items]
Authorized Short Term Borrowings		150,000,000					150,000,000
Notes Payable, Noncurrent		7,004,000					$ 7,004,000	$ 7,004,000
Entergy New Orleans [Member] | Total amount of mortgage bonds to be issued under bond purchase agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 150,000,000
Entergy New Orleans [Member] | Mortgage Bonds 6.25% Series due June 2029 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 35,000,000
Debt Instrument, Interest Rate, Stated Percentage			6.25%
Entergy New Orleans [Member] | Mortgage Bonds 6.41% Series due June 2031 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 65,000,000
Debt Instrument, Interest Rate, Stated Percentage			6.41%
Entergy New Orleans [Member] | Mortgage Bonds 6.54% Series due June 2034 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 50,000,000
Debt Instrument, Interest Rate, Stated Percentage			6.54%
Entergy New Orleans [Member] | 6.25% Unsecured Term Loan due June 2024 [Member]
Debt Instrument [Line Items]
Repayments of Debt		$ 85,000,000
System Energy VIE [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage							0.10%
Entergy Arkansas VIE [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage							0.10%
Entergy Louisiana Waterford VIE [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage							0.10%
Entergy Louisiana River Bend VIE [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage							0.10%
Maximum [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.375%
Ratio of Indebtedness to Net Capital		0.65					0.65
Consolidated debt ratio of lessees total capitalization							70.00%
Maximum [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.375%
Ratio of Indebtedness to Net Capital		0.65					0.65
Consolidated debt ratio of lessees total capitalization							70.00%
Maximum [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.375%
Ratio of Indebtedness to Net Capital		0.65					0.65
Maximum [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.375%
Ratio of Indebtedness to Net Capital		0.65					0.65
Maximum [Member] | System Energy [Member]
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital		0.65					0.65
Consolidated debt ratio of lessees total capitalization							70.00%
Maximum [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.375%
Ratio of Indebtedness to Net Capital		0.65					0.65
Minimum [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.075%
Minimum [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.075%
Minimum [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.075%
Minimum [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.075%
Minimum [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage							0.075%
Subsequent Event [Member] | Junior subordinated debentures due December 2054
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Basis for Effective Rate	2.67
Subsequent Event [Member] | Entergy Louisiana [Member] | Mortgage Bonds 0.95% Series due October 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						0.95%
Repayments of Debt						$ 1,000,000,000
Credit Facility of $139 Million [Member] | Entergy Nuclear Vermont Yankee [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 139,000,000					$ 139,000,000
Line of Credit Facility, Commitment Fee Percentage							0.20%
Long-Term Line of Credit		$ 139,000,000					$ 139,000,000
Debt, Weighted Average Interest Rate		6.95%					6.95%
Credit Facility of $3 Billion
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 3,000,000,000					$ 3,000,000,000
Letters of Credit Outstanding, Amount		4,000,000					$ 4,000,000
Line of Credit Facility, Commitment Fee Percentage							0.225%
Long-Term Line of Credit		0					$ 0
Line of Credit Facility, Remaining Borrowing Capacity		2,996,000,000					2,996,000,000
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit		$ 20,000,000					$ 20,000,000
Line of Credit Facility, Interest Rate at Period End		6.94%					6.94%
Line of Credit Facility, Maximum Amount Outstanding During Period							$ 0
Credit Facility of $3 Billion | Maximum [Member]
Debt Instrument [Line Items]
Ratio of Indebtedness to Net Capital		0.65					0.65