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Equity (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Apr. 10, 2023
Nov. 30, 2022
Mar. 31, 2022
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Jan. 31, 2021
Equity [Abstract]              
Common stock dividend (in dollars per share)       $ 1.07 $ 1.01    
Common Stock, Shares Authorized       499,000,000   499,000,000  
Preferred Stock, Shares Authorized       1,000,000   1,000,000  
Forward Sale Agreement, Aggregate Compensation to Sales Agents     $ 1,700        
Stock Issued During Period, Shares, Treasury Stock Reissued       269,546      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount       1,200,000 900,000    
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share     $ 108.14        
Forward Contract Indexed to Equity, Settlement, Cash, Amount     $ 168,000   $ 168,000    
Forward Contract Indexed to Issuer's Equity, Indexed Shares     1,538,010   1,538,010    
Proceeds from Issuance of Common Stock   $ 853,300          
Equity Distribution Program              
Equity [Abstract]              
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount         1,775,251    
Forward Contract Indexed to Equity, Settlement, Cash, Amount       $ 1,077,800      
Equity Distribution Sales Agreement Increase in Aggregate Gross Sales Price             $ 2,000,000
Common Stock [Member]              
Equity [Abstract]              
Forward Contract Indexed to Issuer's Equity, Shares   7,688,419          
Entergy Louisiana [Member]              
Equity [Abstract]              
Members' Equity Attributable to Noncontrolling Interest       $ 46,396   $ 31,735  
LURC's percentage of annual dividends       1.00%      
ELL's percentage of annual dividends       99.00%      
Entergy Louisiana [Member] | Restoration Law Trust I              
Equity [Abstract]              
Members' Equity Attributable to Noncontrolling Interest       $ 31,813   31,735  
Entergy Arkansas [Member]              
Equity [Abstract]              
Members' Equity Attributable to Noncontrolling Interest       $ 26,092   $ 27,825  
System Energy [Member]              
Equity [Abstract]              
Common Stock, Shares Authorized       1,000,000   1,000,000  
Entergy Texas [Member]              
Equity [Abstract]              
Common Stock, Shares Authorized       200,000,000   200,000,000  
Subsequent Event [Member]              
Equity [Abstract]              
Common stock dividend (in dollars per share) $ 1.07