v3.26.1
Equity (Schedule of Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Other Nonoperating Income (Expense) $ (49,987)   $ (43,722)   $ (27,024) $ (28,996)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 1,666   2,551   (4,228) 5,102
Income Tax Expense (Benefit) (131,678)   (138,399)   (219,468) (238,440)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 1,995   4,602   (1,916) 8,331
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 487,820 $ 390,805 471,954 $ 362,422 878,625 834,376
Reclassification out of Accumulated Other Comprehensive Income [Member]            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 1,995   4,602   (1,916) 8,331
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and other postretirement plans [Member]            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 946   3,462   1,892 6,924
Defined Benefit Plan, Amortization of Gain (Loss) 1,666   2,551   (4,228) 5,102
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 2,612   6,013   (2,336) 12,026
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax 617   1,411   (420) 3,695
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax 1,995   4,602   (1,916) 8,331
Entergy Louisiana [Member]            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Other Nonoperating Income (Expense) (53,512)   (33,797)   (30,497) (16,726)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 1,149   1,719   2,296 3,438
Income Tax Expense (Benefit) (64,598)   (72,541)   (115,154) (126,603)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 1,088   2,132   2,175 3,103
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 312,770 $ 275,900 300,180 $ 254,197 588,670 554,377
Entergy Louisiana [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and other postretirement plans [Member]            
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]            
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 308   1,136   617 2,272
Defined Benefit Plan, Amortization of Gain (Loss) 1,149   1,719   2,296 3,438
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 1,457   2,855   2,913 5,710
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax 369   723   738 2,607
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax 1,088   2,132   2,175 3,103
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax $ 1,088   $ 2,132   $ 2,175 $ 3,103