Business Segment Information Business Segment Information (Restructuring Costs) (Details) - Entergy Wholesale Commodities [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Restructuring Charges			$ 3	$ 8
Restructuring Reserve	$ 40	$ 33	40	33		$ 41	$ 37	$ 171	$ 159
Restructuring Costs	(1)	(5)
Payments for Restructuring	0	133	0	134
Asset Write-Offs, Impairments, And Related Charges	1	342	1	345
Employee Retention and Severances Expenses and Other Benefits-Related Costs [Member]
Segment Reporting Information [Line Items]
Restructuring Charges			3	7
Restructuring Reserve	40	33	40	33		41	37	157	145
Restructuring Costs	(1)	(6)
Payments for Restructuring	0	118	0	119
Employee Retention and Severances Expenses and Other Benefits-Related Costs [Member] | Subsequent Event [Member]
Segment Reporting Information [Line Items]
Restructuring Reserve					$ 5
Economic Development Costs [Member]
Segment Reporting Information [Line Items]
Restructuring Charges	0	1	0	1
Restructuring Reserve	0	0	0	0		$ 0	$ 0	$ 14	$ 14
Payments for Restructuring	$ 0	$ 15	$ 0	$ 15