Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended			3 Months Ended			9 Months Ended
	Oct. 27, 2023	Jun. 28, 2023	Jun. 06, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Nov. 30, 2022	Jan. 31, 2021
Equity [Abstract]
Common stock dividend (in dollars per share)							$ 1.07		$ 1.01	$ 3.21	$ 3.03
Common Stock, Shares Authorized							499,000,000			499,000,000		499,000,000
Preferred Stock, Shares Authorized							1,000,000			1,000,000		1,000,000
Stock Issued During Period, Shares, Treasury Stock Reissued										295,304
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount							1,305,354		926,403	1,138,384	937,350
Stock Issued During Period, Shares, New Issues										0	0
Stock Issued During Period, Shares, New Issues										0	0
Equity Distribution Program
Equity [Abstract]
Forward Sale Agreement, Aggregate Compensation to Sales Agents		$ 400	$ 100	$ 1,900	$ 2,500	$ 1,700
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount										468,302	4,757,308
Forward Contract Indexed to Equity, Settlement, Cash, Amount							$ 1,126,000			$ 1,126,000
Equity Distribution Sales Agreement, Maximum Aggregate Gross Sales Price														$ 2,000,000
Common Stock [Member] | Equity Distribution Program
Equity [Abstract]
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share		$ 101.39	$ 101.36	$ 115.46	$ 116.94	$ 108.12
Forward Contract Indexed to Equity, Settlement, Cash, Amount		$ 37,400	$ 10,500	$ 194,200	$ 250,900	$ 168,000			$ 194,200		$ 194,200		$ 853,300
Forward Contract Indexed to Issuer's Equity, Indexed Shares		365,307	102,995	1,666,172	2,124,086	1,538,010			1,666,172		1,666,172
Forward Contract Indexed to Equity, Settlement, Number of Shares		365,307	102,995	1,666,172	2,124,086	1,538,010			1,666,172		1,666,172		7,688,419
Entergy Louisiana [Member]
Equity [Abstract]
Members' Equity Attributable to Noncontrolling Interest							47,214			$ 47,214		$ 31,735
LURC's percentage of annual dividends										1.00%
ELL's percentage of annual dividends								99.00%		99.00%
Entergy Louisiana [Member] | Restoration Law Trust I
Equity [Abstract]
Members' Equity Attributable to Noncontrolling Interest							32,084			$ 32,084		31,735
Entergy Arkansas [Member]
Equity [Abstract]
Members' Equity Attributable to Noncontrolling Interest							$ 23,675			$ 23,675		$ 27,825
System Energy [Member]
Equity [Abstract]
Common Stock, Shares Authorized							1,000,000			1,000,000		1,000,000
Entergy Texas [Member]
Equity [Abstract]
Common Stock, Shares Authorized							200,000,000			200,000,000		200,000,000
Subsequent Event [Member]
Equity [Abstract]
Common stock dividend (in dollars per share)	$ 1.13