Long-Term Debt (Schedule of Long-Term Debt Instruments) (Details) - USD ($) $ in Thousands	Dec. 01, 2029	Jan. 02, 2025	Dec. 31, 2024	Dec. 31, 2023	Apr. 30, 2022
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			$ (17,575)	$ (11,638)
Unamortized Debt Issuance Expense			(204,010)	(171,475)
Other Long-Term Debt			5,362	5,420
Long-Term Debt			27,991,595	25,107,896
Long-Term Debt, Current Maturities			1,378,090	2,099,057
Long-Term Debt, Excluding Current Maturities			26,613,505	23,008,839
Long-Term Debt, Fair Value			25,181,802	22,489,174
Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			5,283	5,546
Unamortized Debt Issuance Expense			(23,210)	(21,036)
Long-Term Debt			2,427,073	2,229,510
Long-Term Debt, Current Maturities			0	100,000
Long-Term Debt, Excluding Current Maturities			2,427,073	2,129,510
Long-Term Debt, Fair Value			2,116,246	1,969,334
Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			3,620	7,508
Unamortized Debt Issuance Expense			(41,552)	(36,711)
Other Long-Term Debt			1,910	1,932
Long-Term Debt			5,122,494	4,673,080
Long-Term Debt, Current Maturities			0	375,000
Long-Term Debt, Excluding Current Maturities			5,122,494	4,298,080
Long-Term Debt, Fair Value			4,546,643	4,166,941
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			(9,820)	(6,478)
Unamortized Debt Issuance Expense			(68,459)	(56,101)
Other Long-Term Debt			3,452	3,488
Long-Term Debt			9,866,453	9,420,689
Long-Term Debt, Current Maturities			300,000	1,400,000
Long-Term Debt, Excluding Current Maturities			9,566,453	8,020,689
Long-Term Debt, Fair Value			8,751,266	8,414,512
Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			0	(6)
Unamortized Debt Issuance Expense			(6,537)	(7,068)
Long-Term Debt			735,467	677,450
Long-Term Debt, Current Maturities			78,000	85,000
Long-Term Debt, Excluding Current Maturities			650,463	584,171
Long term debt excluding current maturities, including long term payable due associated company			656,327	591,175
Long-Term Debt, Fair Value			697,466	602,716
Long-term debt and notes payable related parties, current			79,140	86,275
Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			7,624	10,199
Unamortized Debt Issuance Expense			(27,605)	(25,865)
Long-Term Debt			3,552,443	3,225,092
Long-Term Debt, Current Maturities			0	0
Long-Term Debt, Excluding Current Maturities			3,552,443	3,225,092
Long-Term Debt, Fair Value			3,176,230	2,936,130
System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net			(8,698)	(10,451)
Unamortized Debt Issuance Expense			(7,164)	(5,545)
Long-Term Debt			1,089,736	738,459
Long-Term Debt, Current Maturities			200,090	57
Long-Term Debt, Excluding Current Maturities			889,646	738,402
Long-Term Debt, Fair Value			$ 1,063,946	696,168
Mortgage Bonds Range 1 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Weighted Average Interest Rate, at Point in Time			3.54%
Long-Term Debt, Gross			$ 4,268,000	$ 6,143,000
Mortgage Bonds Range 1 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			1.50%	0.95%
Mortgage Bonds Range 1 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.00%	6.00%
Mortgage Bonds Range 2 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Weighted Average Interest Rate, at Point in Time			3.62%
Long-Term Debt, Gross			$ 4,250,000	$ 4,150,000
Mortgage Bonds Range 2 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			1.60%	1.60%
Mortgage Bonds Range 2 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.41%	5.30%
Mortgage Bonds Range 3 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Weighted Average Interest Rate, at Point in Time			4.66%
Long-Term Debt, Gross			$ 3,457,000	$ 1,507,000
Mortgage Bonds Range 3 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			3.10%	3.10%
Mortgage Bonds Range 3 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.54%	5.00%
Mortgage Bonds Range 4 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Weighted Average Interest Rate, at Point in Time			4.48%
Long-Term Debt, Gross			$ 9,685,000	$ 7,935,000
Mortgage Bonds Range 4 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			2.65%	2.65%
Mortgage Bonds Range 4 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.85%	5.80%
2.40% Series mortgage bonds 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
2.85% Series mortgage bonds 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
4.52% Series mortgage bonds 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
3.85% Series mortgage bonds 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
3.05% Series mortgage bonds 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
4.00% Series mortgage bonds 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
3.12% Series mortgage bonds 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
3.25% Series mortgage bonds 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
3.25% Series mortgage bonds 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
3.5% Series mortgage bonds 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
4.00% Series mortgage bonds 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
3.75% Series mortgage bonds due July 2024 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				3.75%
Long-Term Debt, Gross			0	$ 100,000
3.70% Series mortgage bonds due June 2024 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				3.70%
Long-Term Debt, Gross			$ 0	$ 375,000
3.78% Series mortgage bonds 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
3.78% Series mortgage bonds due April 2025 [Member] | Entergy Louisiana [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.78%
Long-Term Debt, Gross		$ 110,000
3.78% Series mortgage bonds 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
3.78% Series mortgage bonds due April 2025 (Legacy) [Member] | Entergy Louisiana [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.78%
Long-Term Debt, Gross		$ 190,000
4.0% Series mortgage bonds 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
4.51% Series mortgage bonds 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
4.90% Series mortgage bonds 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
3.45% Series mortgage bonds 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
4.0% Series mortgage bonds 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
4.5% Series mortgage bonds 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
4.44% Series mortgage bonds 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
4.875% Series mortgage bonds 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
4.875% Series mortgage bonds 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
4.95% Series mortgage bonds 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
4.20% Series mortgage bonds 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
4.95% Series mortgage bonds 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
4.20% Series mortgage bonds 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
4.20% Series mortgage bonds 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
5% Series mortgage bonds 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
5.0% Series mortgage bonds 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
5.15% Series mortgage bonds 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
3.55% Series mortgage bonds 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
5.40% Series mortgage bonds due November 2024 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				5.40%
Long-Term Debt, Gross			$ 0	$ 400,000
5.50% Series mortgage bonds 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 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			2,445,000	2,245,000
Mortgage Bonds [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			4,760,000	4,335,000
Mortgage Bonds [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			9,565,000	9,065,000
Mortgage Bonds [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			735,000	585,000
Mortgage Bonds [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			3,330,000	2,980,000
Mortgage Bonds [Member] | System Energy [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			$ 825,000	525,000
Governmental Bonds Range 1 [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 1 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			2.00%	2.00%
Governmental Bonds Range 1 [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 1 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Weighted Average Interest Rate, at Point in Time			3.64%
Long-Term Debt, Gross			$ 242,424	$ 267,003
Securitization Bonds Range 1 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			3.051%	2.67%
Securitization Bonds Range 1 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			3.697%	3.697%
Variable Interest Entities Notes Payable Range 1 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Weighted Average Interest Rate, at Point in Time			3.67%
Long-Term Debt, Gross			$ 390,000	$ 320,000
Variable Interest Entities Notes Payable Range 1 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			1.84%	1.84%
Variable Interest Entities Notes Payable Range 1 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.94%	5.94%
Variable Interest Entity Notes Payable and Credit Facilities [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			$ 182,500	$ 160,200
Variable Interest Entity Notes Payable and Credit Facilities [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			177,600	216,100
Variable Interest Entity Notes Payable and Credit Facilities [Member] | System Energy [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			162,700	$ 111,500
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			0	$ 6,245
Securitization Bonds [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			0	6,245
Securitization Bonds [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			$ 242,424	$ 260,758
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			0.00%	6.61%
Long-Term Debt, Gross			$ 0	$ 139,000
Entergy Arkansas VIE Credit Facility [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.28%	6.10%
Long-Term Debt, Gross			$ 22,500	$ 70,200
Entergy Louisiana River Bend VIE Credit Facility [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.33%	6.17%
Long-Term Debt, Gross			$ 18,700	$ 46,600
Entergy Louisiana Waterford VIE Credit Facility [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.32%	6.07%
Long-Term Debt, Gross			$ 18,900	$ 29,500
System Energy VIE Credit Facility [Member] | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.27%	5.91%
Long-Term Debt, Gross			$ 72,700	$ 21,500
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			$ 216,016	$ 205,151
Long Term DOE Obligation [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			$ 216,016	$ 205,151
Grand Gulf Sale-Leaseback Obligation [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			0.00%	0.00%
Long-Term Debt, Gross			$ 34,203	$ 34,260
Grand Gulf Sale-Leaseback Obligation [Member] | System Energy [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			34,203	34,260
Payable to Entergy Louisiana due November 2035 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross			$ 7,004	$ 8,279
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
2.65% Series mortgage bonds 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
1.60% Series mortgage bonds 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
2.90% Series mortgage bonds 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
3.50% Series mortgage bonds 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
3.0% Series mortgage bonds 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
3.75% Series mortgage bonds 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
1.75% Series mortgage bonds 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
2.14% Series mortgage bonds 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
0.95% Series mortgage bonds due October 2024 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				0.95%
Long-Term Debt, Gross			$ 0	$ 1,000,000
2.35% Series mortgage bonds 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
3.10% Series mortgage bonds 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
2.55% Series mortgage bonds 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
4.19% Series mortgage bonds 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
4.51% Series mortgage bonds 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
1.50% Series mortgage bonds 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
3.35% Series mortgage bonds 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
4.75% Series mortgage bonds 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
5.00% Series mortgage bonds 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			$ 51,574	69,908
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			0.00%	6.25%
Long-Term Debt, Gross			$ 0	$ 85,000
5.15% Series mortgage bonds 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	425,000
5.30% Series mortgage bonds 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	300,000
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	70,000
5.0% Series mortgage bonds 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	300,000
5.80% Series mortgage bonds 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	350,000
6.00% Series mortgage bonds 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	$ 325,000
Entergy Corporation Junior Notes Due December 2054
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			7.125%	0.00%
Long-Term Debt, Gross			$ 1,200,000	$ 0
Entergy Corporation Junior Notes Due December 2054 | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.67%
5.45% Series mortgage bonds due June 2034 | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.45%
Long-Term Debt, Gross			$ 400,000	0
5.75% Series mortgage bonds due June 2054 | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.75%
Long-Term Debt, Gross			$ 400,000	0
5.35% Series mortgage bonds due March 2034 | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.35%
Long-Term Debt, Gross			$ 500,000	0
5.15% Series mortgage bonds due September 2034 | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.15%
Long-Term Debt, Gross			$ 700,000	0
5.70% Series mortgage bonds due March 2054 | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.70%
Long-Term Debt, Gross			$ 700,000	0
5.85% Series mortgage bonds due June 2054 | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.85%
Long-Term Debt, Gross			$ 300,000	0
6.25% Series mortgage bonds due June 2029 | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.25%
Long-Term Debt, Gross			$ 35,000	0
6.41% Series mortgage bonds due June 2031 | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.41%
Long-Term Debt, Gross			$ 65,000	0
6.54% Series mortgage bonds due June 2034 | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.54%
Long-Term Debt, Gross			$ 50,000	0
5.55% Series mortgage bonds due September 2054 | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.55%
Long-Term Debt, Gross			$ 350,000	0
5.30% Series mortgage bonds due December 2034 | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.30%
Long-Term Debt, Gross			$ 300,000	0
VIE Notes Payable, 5.54% Series O due May 2029 | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			5.54%
Long-Term Debt, Gross			$ 70,000	$ 0
5.80% Series mortgage bonds due March 2055 | Entergy Louisiana [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.80%
Long-Term Debt, Gross		$ 750,000