Revolving Credit Facilities, Lines Of Credit, Short-Term Borrowings, And Long-Term Debt (Schedule of uncommitted standby letter of credit facilities) (Details)	3 Months Ended
	Mar. 31, 2025 USD ($)
Financial transmission rights
Letters of Credit Outstanding, Amount	$ 0
Credit Facility of $25 Million [Member] | Entergy Arkansas [Member]
Line of Credit Facility, Maximum Borrowing Capacity	25,000,000
Letters of Credit Outstanding, Amount	0
Credit Facility of $25 Million [Member] | Entergy New Orleans [Member]
Line of Credit Facility, Maximum Borrowing Capacity	25,000,000
Letters of Credit Outstanding, Amount	0
Uncommitted Credit Facility of $25 Million [Member] | Entergy Arkansas [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 25,000,000
Line of Credit Facility, Commitment Fee Percentage	0.78%
Letters of Credit Outstanding, Amount	$ 17,100,000
Uncommitted Credit Facility of $125 Million [Member] | Entergy Louisiana [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 125,000,000
Line of Credit Facility, Commitment Fee Percentage	0.78%
Letters of Credit Outstanding, Amount	$ 56,200,000
Uncommitted Credit Facility of $65 Million [Member] | Entergy Mississippi [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 65,000,000
Line of Credit Facility, Commitment Fee Percentage	0.78%
Letters of Credit Outstanding, Amount	$ 32,600,000
Uncommitted Credit Facility of $65 Million [Member] | Entergy Mississippi [Member] | MISO [Member]
Letters of Credit Outstanding, Amount	31,300,000
Uncommitted Credit Facility of $65 Million [Member] | Entergy Mississippi [Member] | Non-MISO [Member]
Letters of Credit Outstanding, Amount	1,300,000
Uncommitted Credit Facility of $15 Million [Member] | Entergy New Orleans [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000
Line of Credit Facility, Commitment Fee Percentage	1.625%
Letters of Credit Outstanding, Amount	$ 500,000
Uncommitted Credit Facility of $80 Million [Member] | Entergy Texas [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 150,000,000
Line of Credit Facility, Commitment Fee Percentage	1.25%
Letters of Credit Outstanding, Amount	$ 105,400,000
Minimum [Member] | Entergy Arkansas [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 Louisiana [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%
Maximum [Member] | Entergy Arkansas [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 Louisiana [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%