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Revenue Recognition (Schedule of Disaggregation of Revenue) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 2,953,620 $ 2,846,026 $ 5,748,248 $ 5,827,085
Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 608,798 616,347 1,230,843 1,199,096
Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,276,124 1,205,612 2,478,564 2,550,820
Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 442,894 445,130 857,750 857,558
Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 199,341 188,016 392,302 396,836
Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 519,077 464,430 963,568 971,936
Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 2,906,047 2,785,244 5,612,553 5,668,654
Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 608,798 616,347 1,230,843 1,199,096
Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,261,444 1,191,909 2,434,237 2,511,661
Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 442,894 445,130 857,750 857,558
Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 178,664 168,216 335,605 337,911
Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 519,077 464,430 963,568 971,936
Natural Gas, US Regulated [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 35,357 33,503 101,024 98,084
Natural Gas, US Regulated [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Natural Gas, US Regulated [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 14,680 13,703 44,327 39,159
Natural Gas, US Regulated [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Natural Gas, US Regulated [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 20,677 19,800 56,697 58,925
Natural Gas, US Regulated [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0 0 0 0
Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 12,216 27,279 34,671 60,347
Residential [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,009,836 951,424 2,080,177 1,992,883
Residential [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 204,822 204,808 480,574 444,307
Residential [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 353,975 334,246 699,003 694,892
Residential [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 163,049 163,001 341,666 332,390
Residential [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 71,842 68,535 139,520 132,101
Residential [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 216,148 180,834 419,414 389,193
Commercial [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 713,282 692,788 1,405,133 1,407,089
Commercial [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 132,950 136,591 274,258 261,927
Commercial [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 265,869 253,365 522,565 531,543
Commercial [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 142,173 142,997 274,491 276,673
Commercial [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 57,360 56,095 110,585 110,164
Commercial [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 114,930 103,740 223,234 226,782
Industrial [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 792,721 750,177 1,541,679 1,613,899
Industrial [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 138,786 153,817 288,193 285,053
Industrial [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 458,420 407,045 880,017 916,949
Industrial [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 49,180 54,738 95,607 106,153
Industrial [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 7,602 7,562 14,580 14,975
Industrial [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 138,733 127,015 263,282 290,769
Governmental [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 65,861 63,816 131,172 131,153
Governmental [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 4,433 4,945 9,133 9,605
Governmental [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 21,223 19,407 43,044 42,481
Governmental [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 14,061 14,971 27,390 28,854
Governmental [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 19,167 17,896 37,521 35,694
Governmental [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 6,977 6,597 14,084 14,519
Billed Retail [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 2,581,700 2,458,205 5,158,161 5,145,024
Billed Retail [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 480,991 500,161 1,052,158 1,000,892
Billed Retail [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,099,487 1,014,063 2,144,629 2,185,865
Billed Retail [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 368,463 375,707 739,154 744,070
Billed Retail [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 155,971 150,088 302,206 292,934
Billed Retail [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 476,788 418,186 920,014 921,263
Sales for Resale [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 54,579 68,262 133,583 176,209
Sales for Resale [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 43,842 48,266 82,807 114,283
Sales for Resale [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 80,823 80,248 163,551 163,484
Sales for Resale [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 21,260 26,073 69,193 64,816
Sales for Resale [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 8,575 11,075 21,075 35,985
Sales for Resale [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 3,015 1,986 4,922 4,431
Non-Customer [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 11,955 11,446 26,962 55,633
Non-Customer [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 2,232 2,113 4,804 4,397
Non-Customer [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 6,464 6,226 13,442 44,373
Non-Customer [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 2,453 2,384 4,887 4,832
Non-Customer [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,307 1,386 2,732 2,908
Non-Customer [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 50 (603) (104) (843)
Non-Customer [Member] | Other [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 12,216 27,279 34,671 60,347
Other Electric [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 257,813 247,331 293,847 291,788
Other Electric [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 81,733 65,807 91,074 79,524
Other Electric [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 74,670 91,372 112,615 117,939
Other Electric [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 50,718 40,966 44,516 43,840
Other Electric [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 12,811 5,667 9,592 6,084
Other Electric [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 39,224 44,861 38,736 47,085
Customer [Member] | Electricity [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 2,894,092 2,773,798 5,585,591 5,613,021
Customer [Member] | Electricity [Member] | Entergy Arkansas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 606,566 614,234 1,226,039 1,194,699
Customer [Member] | Electricity [Member] | Entergy Louisiana [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 1,254,980 1,185,683 2,420,795 2,467,288
Customer [Member] | Electricity [Member] | Entergy Mississippi [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 440,441 442,746 852,863 852,726
Customer [Member] | Electricity [Member] | Entergy New Orleans [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 177,357 166,830 332,873 335,003
Customer [Member] | Electricity [Member] | Entergy Texas [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax $ 519,027 $ 465,033 $ 963,672 $ 972,779