Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Schedule of Line of Credit Facilities) (Details)	3 Months Ended
	Mar. 31, 2025 USD ($)
Credit Facility of $3 Billion
Line of Credit Facility, Maximum Borrowing Capacity	$ 3,000,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 4,000,000
Line of Credit Facility, Interest Rate at Period End	5.92%
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit	$ 20,000,000
Line of Credit Facility, Commitment Fee Percentage	0.225%
Line of Credit Facility, Remaining Borrowing Capacity	$ 2,996,000,000
Entergy Arkansas [Member] | Credit Facility of $25 Million [Member]
Line of Credit Facility, Maximum Borrowing Capacity	25,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 0
Line of Credit Facility, Interest Rate at Period End	6.27%
Entergy Arkansas [Member] | Credit Facility of $300 Million
Line of Credit Facility, Maximum Borrowing Capacity	$ 300,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 0
Line of Credit Facility, Interest Rate at Period End	5.55%
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit	$ 5,000,000
Entergy Louisiana [Member] | Credit Facility of $400 Million
Line of Credit Facility, Maximum Borrowing Capacity	400,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 0
Line of Credit Facility, Interest Rate at Period End	5.67%
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit	$ 15,000,000
Entergy Mississippi [Member] | Credit Facility of $300 Million
Line of Credit Facility, Maximum Borrowing Capacity	300,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 0
Line of Credit Facility, Interest Rate at Period End	5.55%
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit	$ 5,000,000
Entergy New Orleans [Member] | Credit Facility of $25 Million [Member]
Line of Credit Facility, Maximum Borrowing Capacity	25,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 0
Line of Credit Facility, Interest Rate at Period End	6.05%
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit	$ 10,000,000
Entergy Texas [Member] | Credit Facility of $300 Million
Line of Credit Facility, Maximum Borrowing Capacity	300,000,000
Long-Term Line of Credit	0
Letters of Credit Outstanding, Amount	$ 1,100,000
Line of Credit Facility, Interest Rate at Period End	5.67%
Amount of total borrowing capacity against which fronting commitments exist for the issuance of letters of credit	$ 25,000,000
Maximum [Member] | Entergy Arkansas [Member]
Line of Credit Facility, Commitment Fee Percentage	0.375%
Maximum [Member] | Entergy Louisiana [Member]
Line of Credit Facility, Commitment Fee Percentage	0.375%
Maximum [Member] | Entergy Mississippi [Member]
Line of Credit Facility, Commitment Fee Percentage	0.375%
Maximum [Member] | Entergy New Orleans [Member]
Line of Credit Facility, Commitment Fee Percentage	0.375%
Maximum [Member] | Entergy Texas [Member]
Line of Credit Facility, Commitment Fee Percentage	0.375%
Minimum [Member] | Entergy Arkansas [Member]
Line of Credit Facility, Commitment Fee Percentage	0.075%
Minimum [Member] | Entergy Louisiana [Member]
Line of Credit Facility, Commitment Fee Percentage	0.075%
Minimum [Member] | Entergy Mississippi [Member]
Line of Credit Facility, Commitment Fee Percentage	0.075%
Minimum [Member] | Entergy New Orleans [Member]
Line of Credit Facility, Commitment Fee Percentage	0.075%
Minimum [Member] | Entergy Texas [Member]
Line of Credit Facility, Commitment Fee Percentage	0.075%