Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)
Entergy Arkansas [Member] | Credit Facility Of Twenty Five Million [Member]
Uncommitted Credit Facility Maximum Borrowing Capacity	$ 25,000,000
Line of Credit Facility, Commitment Fee Amount	0.0078
Letters Of Credit	5,800,000
Entergy Arkansas [Member] | Credit Facility of Eighty Million [Member]
Letters of credit posted to cover financial transmission right exposure	1,200,000
Entergy Louisiana [Member] | Credit Facility of One Hundred and Twenty Five Million [Member]
Uncommitted Credit Facility Maximum Borrowing Capacity	125,000,000
Line of Credit Facility, Commitment Fee Amount	0.0078
Letters Of Credit	17,100,000
Entergy Louisiana [Member] | Credit Facility of Eighty Million [Member]
Letters of credit posted to cover financial transmission right exposure	500,000
Entergy Mississippi [Member] | Credit Facility of Sixty Five Million [Member]
Uncommitted Credit Facility Maximum Borrowing Capacity	65,000,000
Line of Credit Facility, Commitment Fee Amount	0.0078
Letters Of Credit	20,000,000
Letters of credit posted to cover financial transmission right exposure	300,000
Non-MISO Letters Of Credit	1,000,000
Entergy New Orleans [Member] | Credit Facility of Fifteen Million [Member]
Uncommitted Credit Facility Maximum Borrowing Capacity	15,000,000
Line of Credit Facility, Commitment Fee Amount	0.01625
Letters Of Credit	500,000
Entergy Texas [Member] | Credit Facility of Eighty Million [Member]
Uncommitted Credit Facility Maximum Borrowing Capacity	80,000,000
Line of Credit Facility, Commitment Fee Amount	0.01250
Letters Of Credit	76,500,000
Letters of credit posted to cover financial transmission right exposure	$ 100,000