Business Segment Information Business Segment Information (Restructuring Costs) (Details) - Entergy Wholesale Commodities [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3	$ 13	$ 71
Paid in cash	40	135	55
Restructuring Reserve	0	37	159	$ 143
Employee Retention and Severances Expenses and Other Benefits-Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	3	12	71
Paid in cash	40	120	55
Restructuring Reserve	0	37	145	129
Economic Development Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	1	0
Paid in cash	0	15	0
Restructuring Reserve	$ 0	$ 0	$ 14	$ 14