Preferred Equity (Schedule Of Number Of Shares And Units Authorized And Outstanding And Dollar Value Of Preferred Stock) (Details) - USD ($)	1 Months Ended						9 Months Ended	12 Months Ended
	Nov. 30, 2021	Sep. 30, 2019	Nov. 30, 2018	Nov. 30, 2017	Oct. 31, 2015	Dec. 31, 2013	Sep. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 01, 2021	Sep. 30, 2020
Payments for Repurchase of Preferred Stock and Preference Stock								$ 0	$ 0	$ 50,000,000
Stockholders' Equity Attributable to Noncontrolling Interest								68,110,000	35,000,000
Temporary Equity, Carrying Amount, Attributable to Parent								219,410,000	219,410,000
Preferred Stock, Value, Issued								0	$ 0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs								$ 3,438,000		$ 7,000
Preferred Stock, Shares Authorized								1,000,000	0		1,000,000
Entergy Texas [Member]
Stockholders' Equity Attributable to Noncontrolling Interest								$ 38,750,000	$ 35,000,000
Preferred Stock, Shares Outstanding								1,550,000	1,400,000
Preferred Stock, Shares Authorized								1,550,000	1,400,000
Preferred Stock, Par or Stated Value Per Share								$ 25
Entergy Corporation [Member]
Preferred Stock, Shares Authorized								2,000,000	1,850,000
Temporary Equity, Shares Outstanding								1,850,000	1,850,000
Total preferred stock or preferred membership interests without sinking fund								$ 287,520,000	$ 254,410,000
Entergy Arkansas [Member]
Preferred Stock, Shares Outstanding								0	0
Preferred Stock, Shares Authorized								0	0
Entergy Arkansas [Member] | Noncontrolling Interest
Stockholders' Equity Attributable to Noncontrolling Interest								$ 33,110,000	$ 0
Utility [Member]
Preferred Shares/Units, Outstanding								1,600,000	1,600,000
Preferred Units, Authorized								1,750,000	1,600,000
Total preferred stock or preferred membership interests without sinking fund								$ 263,271,000	$ 230,161,000
Preferred Stock, 8.75% Rate [Member] | Entergy Finance Holding Inc [Member]
Preferred Stock, Shares Authorized						250,000		250,000	250,000
Temporary Equity, Shares Outstanding								250,000	250,000
Temporary Equity, Carrying Amount, Attributable to Parent								$ 24,249,000	$ 24,249,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs								$ 751,000
Preferred Stock, Dividend Rate, Percentage						8.75%
Temporary Equity, Par Value						$ 100
Temporary Equity, Redemption Price Per Share								$ 100
Preferred Stock, Cumulative One Thousand Dollar Par Value, Seven Point Five Percent Series [Member] | Entergy Utility Holding Company LLC [Member]
Preferred Shares/Units, Outstanding								110,000	110,000
Temporary Equity, Carrying Amount, Attributable to Parent								$ 107,425,000	$ 107,425,000
Preferred Units, Authorized					110,000			110,000	110,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs								$ 2,575,000
Preferred Stock, Dividend Rate, Percentage					7.50%
Temporary Equity, Par Value					$ 1,000
Temporary Equity, Redemption Price Per Share								$ 1,000
Preferred Stock, Cumulative $1,000 Par Value 6.25% Series [Domain] | Entergy Utility Holding Company LLC [Member]
Preferred Shares/Units, Outstanding								15,000	15,000
Temporary Equity, Carrying Amount, Attributable to Parent								$ 14,366,000	$ 14,366,000
Preferred Units, Authorized				15,000				15,000	15,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs								$ 634,000
Preferred Stock, Dividend Rate, Percentage				6.25%
Temporary Equity, Par Value				$ 1,000
Temporary Equity, Redemption Price Per Share								$ 1,000
Preferred Stock, Cumulative $1,000 Par Value 6.75% Series [Domain] | Entergy Utility Holding Company LLC [Member]
Preferred Shares/Units, Outstanding								75,000	75,000
Temporary Equity, Carrying Amount, Attributable to Parent								$ 73,370,000	$ 73,370,000
Preferred Units, Authorized			75,000					75,000	75,000
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs								$ 1,630,000
Preferred Stock, Dividend Rate, Percentage			6.75%
Temporary Equity, Par Value			$ 1,000
Temporary Equity, Redemption Price Per Share								$ 1,000
Preferred Stock, Five Point Three Seven Five Percent, Series A [Member] | Entergy Texas [Member]
Stockholders' Equity Attributable to Noncontrolling Interest								$ 35,000,000	$ 35,000,000
Preferred Stock, Dividend Rate, Percentage		5.375%
Preferred Stock, Shares Outstanding								1,400,000	1,400,000
Preferred Stock, Shares Authorized								1,400,000	1,400,000
Preferred Stock, Five Point Three Seven Five Percent, Series A [Member] [Domain] | Entergy Texas [Member]
Preferred Stock, Shares Authorized												1,400,000
Preferred Stock, Dividend Rate, Percentage		5.375%
Preferred Stock, Five Point One Zero Percent, Series B | Entergy Texas [Member]
Preferred Stock, Shares Authorized	150,000
Stockholders' Equity Attributable to Noncontrolling Interest								$ 0	$ 0
Preferred Stock, Dividend Rate, Percentage	5.10%
Preferred Stock, Shares Outstanding								0	0
Preferred Stock, Shares Authorized								150,000	0
Preferred Stock, Five Point Three Seven Five Percent, Series A [Member] | Entergy Texas [Member]
Preferred Stock, Call Price per Share								$ 0
Stockholders' Equity Attributable to Noncontrolling Interest								$ 35,000,000	$ 35,000,000
Preferred Stock, Value, Issued		$ 35,000,000					$ 35,000,000					$ 35,000,000
Preferred Stock, Dividend Rate, Percentage							5.375%
Preferred Stock, Shares Outstanding								1,400,000	1,400,000
Preferred Stock, Shares Authorized								1,400,000	1,400,000
Preferred Stock, Five Point One Zero Percent, Series B | Entergy Texas [Member]
Preferred Stock, Call Price per Share								$ 25.50
Stockholders' Equity Attributable to Noncontrolling Interest								$ 3,750,000	$ 0
Preferred Stock, Value, Issued	$ 3,750,000
Preferred Stock, Shares Outstanding								150,000	0
Preferred Stock, Shares Authorized								150,000	0