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Long - Term Debt (Schedule Of Long-term Debt Instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Apr. 30, 2022
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net $ (11,638) $ 960  
Unamortized Debt Issuance Expense (171,475) (173,464)  
Other Long-Term Debt 5,420 5,474  
Long-Term Debt 25,107,896 25,932,549  
Long-Term Debt, Current Maturities 2,099,057 2,309,037  
Long-Term Debt, Excluding Current Maturities 23,008,839 23,623,512  
Long-Term Debt, Fair Value 22,489,174 22,573,837  
Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net 5,546 5,803  
Unamortized Debt Issuance Expense (21,036) (19,707)  
Long-Term Debt 2,229,510 2,331,096  
Long-Term Debt, Current Maturities 100,000 400,000  
Long-Term Debt, Excluding Current Maturities 2,129,510 1,931,096  
Long-Term Debt, Fair Value 1,969,334 1,987,154  
Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net 7,508 12,513  
Unamortized Debt Issuance Expense (36,711) (33,009)  
Other Long-Term Debt 1,932 1,952  
Long-Term Debt 4,673,080 4,166,500  
Long-Term Debt, Current Maturities 375,000 290,000  
Long-Term Debt, Excluding Current Maturities 4,298,080 3,876,500  
Long-Term Debt, Fair Value 4,166,941 3,538,930  
Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net (6,478) (8,482)  
Unamortized Debt Issuance Expense (56,101) (63,698)  
Other Long-Term Debt 3,488 3,522  
Long-Term Debt 9,420,689 10,698,922  
Long-Term Debt, Current Maturities 1,400,000 1,010,000  
Long-Term Debt, Excluding Current Maturities 8,020,689 9,688,922  
Long-Term Debt, Fair Value 8,414,512 9,444,665  
Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net (6) (25)  
Unamortized Debt Issuance Expense (7,068) (7,698)  
Long-Term Debt 677,450 775,632  
Long-Term Debt, Current Maturities 85,000 170,000  
Long-Term Debt, Excluding Current Maturities 584,171 596,047  
Long term debt excluding current maturities, including long term payable due associated company 591,175 604,326  
Long-Term Debt, Fair Value 602,716 707,872  
Long-term debt and notes payable related parties, current 86,275 171,306  
Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net 10,199 11,528  
Unamortized Debt Issuance Expense (25,865) (24,208)  
Long-Term Debt 3,225,092 2,895,913  
Long-Term Debt, Current Maturities 0 0  
Long-Term Debt, Excluding Current Maturities 3,225,092 2,895,913  
Long-Term Debt, Fair Value 2,936,130 2,485,705  
System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Unamortized Discount (Premium), Net (10,451) (50)  
Unamortized Debt Issuance Expense (5,545) (2,637)  
Long-Term Debt 738,459 777,905  
Long-Term Debt, Current Maturities 57 300,037  
Long-Term Debt, Excluding Current Maturities 738,402 477,868  
Long-Term Debt, Fair Value $ 696,168 702,473  
Mortgage Bonds Range One [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 3.05%    
Long-Term Debt, Gross $ 4,668,000 $ 6,808,000  
Mortgage Bonds Range One [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.95% 0.62%  
Mortgage Bonds Range One [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.40% 5.59%  
Mortgage Bonds Range Two [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 2.88%    
Long-Term Debt, Gross $ 3,590,000 $ 3,265,000  
Mortgage Bonds Range Two [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.60% 1.60%  
Mortgage Bonds Range Two [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.00% 4.19%  
Mortgage Bonds Range Three [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 4.12%    
Long-Term Debt, Gross $ 3,122,000 $ 2,097,000  
Mortgage Bonds Range Three [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.55% 2.55%  
Mortgage Bonds Range Three [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.30% 4.52%  
Mortgage Bonds Range Four [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 4.22%    
Long-Term Debt, Gross $ 8,355,000 $ 8,005,000  
Mortgage Bonds Range Four [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.65% 2.65%  
Mortgage Bonds Range Four [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.80% 5.50%  
Mortgage Bonds 2.40% Series Due October 2026 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.40%    
Long-Term Debt, Gross $ 400,000 $ 400,000  
Mortgage Bonds 2.85% Series Due June 2028 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.85%    
Long-Term Debt, Gross $ 375,000 375,000  
Mortgage Bonds 4.52% Series Due December 2038 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.52%    
Long-Term Debt, Gross $ 55,000 55,000  
Mortgage Bonds 3.85% Series Due June 2049 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.85%    
Long-Term Debt, Gross $ 435,000 435,000  
Mortgage Bonds 3.05% Series Due June 2031 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.05%    
Long-Term Debt, Gross $ 325,000 325,000  
Mortgage Bonds 4.00% Series Due March 2033 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.00%    
Long-Term Debt, Gross $ 750,000 $ 750,000  
Mortgage Bonds 3.05% Series Due June 2023 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   3.05%  
Long-Term Debt, Gross 0 $ 250,000  
Mortgage Bonds 3.10% Series Due July 2023 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   3.10%  
Long-Term Debt, Gross $ 0 $ 250,000  
Mortgage Bonds 3.12% Series Due September 2027 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.12%    
Long-Term Debt, Gross $ 450,000 450,000  
Mortgage Bonds 3.25% Series Due April 2028 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.25%    
Long-Term Debt, Gross $ 425,000 425,000  
Mortgage Bonds 3.25% Series Due December 2027 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.25%    
Long-Term Debt, Gross $ 150,000 150,000  
Mortgage Bonds 3.5% Series Due April 2026 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.50%    
Long-Term Debt, Gross $ 600,000 600,000  
Mortgage Bonds 4.00% Series Due June 2028 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.00%    
Long-Term Debt, Gross $ 350,000 350,000  
Mortgage Bonds 3.75% Series Due July 2024 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.75%    
Long-Term Debt, Gross $ 100,000 100,000  
Mortgage Bonds 3.70% Series Due June 2024 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.70%    
Long-Term Debt, Gross $ 375,000 375,000  
Mortgage Bonds 3.78% Series Due April 2025 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.78%    
Long-Term Debt, Gross $ 110,000 110,000  
Mortgage Bonds 3.78% Series Due April 2025 (Legacy) [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.78%    
Long-Term Debt, Gross $ 190,000 $ 190,000  
Mortgage Bonds 3.90% Series Due July 2023 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   3.90%  
Long-Term Debt, Gross $ 0 $ 100,000  
Mortgage Bonds 4.0% Series Due June 2026 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.00%    
Long-Term Debt, Gross $ 85,000 85,000  
Mortgage Bonds 4.51% Series Due September 2033 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.51%    
Long-Term Debt, Gross $ 60,000 $ 60,000  
Mortgage Bonds 4.05% Series Due September 2023 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   4.05%  
Long-Term Debt, Gross $ 0 $ 325,000  
Mortgage Bonds 4.90% Series Due October 2066 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.90%    
Long-Term Debt, Gross $ 260,000 $ 260,000  
Mortgage Bonds 4.10% Series Due April 2023 [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   4.10%  
Long-Term Debt, Gross $ 0 $ 250,000  
Mortgage Bonds 3.45% Series Due December 2027 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.45%    
Long-Term Debt, Gross $ 150,000 150,000  
Mortgage Bonds 4.0% Series Due March 2029 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.00%    
Long-Term Debt, Gross $ 300,000 300,000  
Mortgage Bonds 4.5% Series Due March 2039 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.50%    
Long-Term Debt, Gross $ 400,000 400,000  
Mortgage Bonds 4.44% Series Due January 2026 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.44%    
Long-Term Debt, Gross $ 250,000 250,000  
Mortgage Bonds 4.875% Series Due September 2066 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.875%    
Long-Term Debt, Gross $ 410,000 410,000  
Mortgage Bonds 4.875% Series Due September 2066 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.875%    
Long-Term Debt, Gross $ 270,000 270,000  
Mortgage Bonds 4.95% Series Due December 2044 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.95%    
Long-Term Debt, Gross $ 250,000 250,000  
Mortgage Bonds 4.20% Series Due April 2049 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.20%    
Long-Term Debt, Gross $ 550,000 550,000  
Mortgage Bonds 4.95% Series Due January 2045 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.95%    
Long-Term Debt, Gross $ 450,000 450,000  
Mortgage Bonds 4.20% Series Due September 2048 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.20%    
Long-Term Debt, Gross $ 900,000 900,000  
Mortgage Bonds 4.20% Series due April 2050 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.20%    
Long-Term Debt, Gross $ 525,000 525,000  
Mortgage Bonds 5% Series Due July 2044 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.00%    
Long-Term Debt, Gross $ 170,000 170,000  
Mortgage Bonds 5.0% Series Due December 2052 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.00%    
Long-Term Debt, Gross $ 30,000 30,000  
Mortgage Bonds 5.15% Series Due June 2045 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.15%    
Long-Term Debt, Gross $ 250,000 250,000  
Mortgage Bonds 3.55% Series Due September 2049 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.55%    
Long-Term Debt, Gross $ 475,000 475,000  
Mortgage Bonds 5.40% Series Due November 2024 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.40%    
Long-Term Debt, Gross $ 400,000 400,000  
Mortgage Bonds 5.50% Series Due April 2066 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.50%    
Long-Term Debt, Gross $ 110,000 $ 110,000  
Mortgage Bonds 5.59% Series Due October 2024 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   5.59%  
Long-Term Debt, Gross 0 $ 300,000  
Mortgage Bonds [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 2,245,000 2,195,000  
Mortgage Bonds [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 4,335,000 3,860,000  
Mortgage Bonds [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 9,065,000 10,355,000  
Mortgage Bonds [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 585,000 685,000  
Mortgage Bonds [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 2,980,000 2,630,000  
Mortgage Bonds [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 525,000 450,000  
Governmental Bonds Range One [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 2.43%    
Long-Term Debt, Gross $ 282,375 $ 282,375  
Governmental Bonds Range One [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.00% 2.00%  
Governmental Bonds Range One [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.50% 2.50%  
Governmental Bonds [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 198,680 $ 198,680  
Governmental Bonds [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 83,695 83,695  
Securitization Bonds Range One [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 3.61%    
Long-Term Debt, Gross $ 267,003 $ 297,363  
Securitization Bonds Range One [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.67% 2.67%  
Securitization Bonds Range One [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.697% 3.697%  
Variable Interest Entities Notes Payable Range One [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 2.85%    
Long-Term Debt, Gross $ 320,000 $ 310,000  
Variable Interest Entities Notes Payable Range One [Member] | Minimum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.84% 1.84%  
Variable Interest Entities Notes Payable Range One [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.94% 3.22%  
VIE Notes Payable, 3.17% Series M Due December 2023 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   3.17%  
Long-Term Debt, Gross $ 0 $ 40,000  
VIE Notes Payable, 3.22% Series I Due December 2023 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   3.22%  
Long-Term Debt, Gross 0 $ 20,000  
Variable Interest Entity Notes Payable and Credit Facilities [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 160,200 130,000  
Variable Interest Entity Notes Payable and Credit Facilities [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 216,100 163,900  
Variable Interest Entity Notes Payable and Credit Facilities [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 111,500 162,600  
Securitization Bonds 2.67% Series Senior Secured Due June 2027 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.67%    
Long-Term Debt, Gross $ 6,245 18,770  
Securitization Bonds [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 6,245 18,770  
Securitization Bonds [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 260,758 $ 278,593  
Entergy Corporation Notes Due September 2026 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.95% 2.95%  
Long-Term Debt, Gross $ 750,000 $ 750,000  
Vermont Yankee Credit Facility [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.61% 3.19%  
Long-Term Debt, Gross $ 139,000 $ 139,000  
Five Year Credit Facility [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.00% 2.97%  
Long-Term Debt, Gross $ 0 $ 150,000  
Entergy Arkansas VIE Credit Facility [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.10% 2.62%  
Long-Term Debt, Gross $ 70,200 $ 0  
Entergy Louisiana River Bend VIE Credit Facility [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.17% 2.17%  
Long-Term Debt, Gross $ 46,600 $ 13,100  
Entergy Louisiana Waterford VIE Credit Facility [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.07% 2.74%  
Long-Term Debt, Gross $ 29,500 $ 60,800  
System Energy VIE Credit Facility [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.91% 2.77%  
Long-Term Debt, Gross $ 21,500 $ 72,600  
Long Term DOE Obligation [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Weighted Average Interest Rate, at Point in Time 0.00%    
Debt Instrument, Interest Rate, Stated Percentage 0.00% 0.00%  
Long-Term Debt, Gross $ 205,151 $ 195,044  
Long Term DOE Obligation [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 205,151 $ 195,044  
Grand Gulf Sale-Leaseback Obligation [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.00% 0.00%  
Long-Term Debt, Gross $ 34,260 $ 34,297  
Grand Gulf Sale-Leaseback Obligation [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross 34,260 34,297  
Payable to Entergy Louisiana due November 2035 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Long-Term Debt, Gross $ 8,279 $ 9,585  
Entergy Corporation Notes Due September 2025 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.90% 0.90%  
Long-Term Debt, Gross $ 800,000 $ 800,000  
Entergy Corporation Notes Due June 2030 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.80% 2.80%  
Long-Term Debt, Gross $ 600,000 $ 600,000  
Entergy Corporation Notes Due June 2050 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.75% 3.75%  
Long-Term Debt, Gross $ 600,000 $ 600,000  
Mortgage Bonds 2.65% Series Due June 2051 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.65%    
Long-Term Debt, Gross $ 675,000 $ 675,000  
Mortgage Bonds 0.62% Series Due November 2023 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage   0.62%  
Long-Term Debt, Gross $ 0 $ 665,000  
Mortgage Bonds 1.60% Series Due December 2030 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.60%    
Long-Term Debt, Gross $ 300,000 300,000  
Mortgage Bonds 2.90% Series Due March 2051 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.90%    
Long-Term Debt, Gross $ 650,000 650,000  
VIE Notes Payable, 2.51% Series V Due June 2027 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.51%    
Long-Term Debt, Gross $ 70,000 70,000  
Mortgage Bonds 3.50% Series Due June 2051 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.50%    
Long-Term Debt, Gross $ 370,000 370,000  
Mortgage Bonds 3.0% Series Due March 2025 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.00%    
Long-Term Debt, Gross $ 78,000 78,000  
Mortgage Bonds 3.75% Series Due March 2040 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.75%    
Long-Term Debt, Gross $ 62,000 62,000  
Mortgage Bonds 1.75% Series Due March 2031 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.75%    
Long-Term Debt, Gross $ 600,000 600,000  
Mortgage Bonds 2.14% Series Due December 2025 [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.14%    
Long-Term Debt, Gross $ 200,000 200,000  
VIE Notes Payable, 2.05% Series K Due September 2027 [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.05%    
Long-Term Debt, Gross $ 90,000 $ 90,000  
Entergy Corporation Notes due June 2028 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.90% 1.90%  
Long-Term Debt, Gross $ 650,000 $ 650,000  
Entergy Corporation Notes due June 2031 [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.40% 2.40%  
Long-Term Debt, Gross $ 650,000 $ 650,000  
VIE Notes Payable, 1.84% Series N Due July 2026 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.84%    
Long-Term Debt, Gross $ 90,000 90,000  
Mortgage Bonds 0.95% Series Due October 2024 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.95%    
Long-Term Debt, Gross $ 1,000,000 $ 1,000,000  
2.5% Unsecured Term Loan due May 2023 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.00% 2.50%  
Long-Term Debt, Gross $ 0 $ 70,000  
Mortgage Bonds 2.35% Series Due June 2032 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.35%    
Long-Term Debt, Gross $ 500,000 500,000  
Mortgage Bonds 3.10% Series Due June 2041 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.10%    
Long-Term Debt, Gross $ 500,000 500,000  
Governmental Bonds, 2.00% Series Due June 2030, Louisiana Local Government Environmental Facilities and Community Development Authority [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.00%    
Long-Term Debt, Gross $ 16,200 16,200  
Governmental Bonds, 2.50% Series Due April 2036, Louisiana Local Government Environmental Facilities and Community Development Authority [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.50%    
Long-Term Debt, Gross $ 182,480 182,480  
Mortgage Bonds 2.55% Series Due December 2033 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.55%    
Long-Term Debt, Gross $ 200,000 200,000  
Mortgage Bonds 4.19% Series Due November 2031 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.19%    
Long-Term Debt, Gross $ 90,000 90,000  
Mortgage Bonds 4.51% Series Due November 2036 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.51%    
Long-Term Debt, Gross $ 70,000 70,000  
Mortgage Bonds 1.50% Series Due September 2026 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.50%    
Long-Term Debt, Gross $ 130,000 130,000  
Governmental Bonds 2.375% Series Due June 2044, Mississippi Business Finance Corp. [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.375%    
Long-Term Debt, Gross $ 83,695 $ 83,695  
Entergy Louisiana Credit Facility [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.00% 7.75%  
Long-Term Debt, Gross $ 0 $ 50,000  
Mortgage Bonds 3.35% Series Due June 2052 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.35%    
Long-Term Debt, Gross $ 400,000 $ 400,000  
4.082% Unsecured Term Loan due December 2023 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.00% 4.082%  
Long-Term Debt, Gross $ 0 $ 150,000  
3.721% Term Loan due November 2023 [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 0.00% 3.721%  
Long-Term Debt, Gross $ 0 $ 50,000  
Mortgage Bonds 4.75% Series Due September 2052 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.75%    
Long-Term Debt, Gross $ 500,000 500,000  
Mortgage Bonds 5.00% Series Due September 2052 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.00%    
Long-Term Debt, Gross $ 325,000 325,000  
Securitization Bonds 3.051% Series Senior Secured Due December 2028 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.051%   3.051%
Long-Term Debt, Gross $ 69,908 87,743  
Securitization Bonds 3.697% Series Senior Secured Due December 2036 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.697%   3.697%
Long-Term Debt, Gross $ 190,850 $ 190,850  
6.25% Unsecured Term Loan due June 2024 [Member] | Entergy New Orleans [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.25% 0.00%  
Long-Term Debt, Gross $ 85,000 $ 0  
Mortgage Bonds 5.15% Series Due January 2033 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.15%    
Long-Term Debt, Gross $ 425,000 0  
Mortgage Bonds 5.30% Series Due September 2033 [Member] | Entergy Arkansas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.30%    
Long-Term Debt, Gross $ 300,000 0  
VIE Notes Payable, 5.94% Series J due September 2026 [Member] | Entergy Louisiana [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.94%    
Long-Term Debt, Gross $ 70,000 0  
Mortgage Bonds 5.0% Series due September 2033 [Member] | Entergy Mississippi [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.00%    
Long-Term Debt, Gross $ 300,000 0  
Mortgage Bonds 5.80% Series due September 2053 [Member] | Entergy Texas [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.80%    
Long-Term Debt, Gross $ 350,000 0  
Mortgage Bonds 6.00% Series Due April 2028 [Member] | System Energy [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.00%    
Long-Term Debt, Gross $ 325,000 $ 0