Long - Term Debt (Schedule Of Long-term Debt Instruments) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		$ (19,397)	$ (12,067)
Unamortized Debt Issuance Expense		(128,849)	(110,349)
Other		13,204	13,960
Total Long-Term Debt		14,832,555	13,325,930
Long-term Debt, Current Maturities		364,900	214,374
Long Term Debt Excluding Amount Due Within One Year		14,467,655	13,111,556
Fair Value of Long-Term Debt	[1]	14,815,535	13,578,511
Entergy Arkansas [Member]
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		984	(2,775)
Unamortized Debt Issuance Expense		(34,357)	(28,503)
Other		2,057	2,073
Total Long-Term Debt		2,829,785	2,629,839
Long-term Debt, Current Maturities		114,700	55,000
Long Term Debt Excluding Amount Due Within One Year		2,715,085	2,574,839
Fair Value of Long-Term Debt	[2]	2,623,910	2,498,108
Value of DOE obligation excluded from fair value of long-term debt calculation.		182,000
Entergy Louisiana [Member]
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		(14,917)	(4,537)
Unamortized Debt Issuance Expense		(48,972)	(40,156)
Other		6,833	7,042
Total Long-Term Debt		5,812,791	4,836,162
Long-term Debt, Current Maturities		200,198	29,372
Long Term Debt Excluding Amount Due Within One Year		5,612,593	4,806,790
Fair Value of Long-Term Debt	[2]	5,929,488	5,018,786
Value of lease obligation excluded from fair value of long-term debt calculation.		57,000
Entergy Mississippi [Member]
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		(766)	(1,038)
Unamortized Debt Issuance Expense		(13,318)	(13,877)
Total Long-Term Debt		1,120,916	1,045,085
Long-term Debt, Current Maturities		0	125,000
Long Term Debt Excluding Amount Due Within One Year		1,120,916	920,085
Fair Value of Long-Term Debt	[2]	1,086,203	1,087,326
Entergy New Orleans [Member]
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		(245)	(283)
Unamortized Debt Issuance Expense		(8,595)	(7,170)
Total Long-Term Debt		448,994	342,880
Long-term Debt, Current Maturities		2,104	4,973
Long Term Debt Noncurrent (Including Long Term Payable due to ELL)		446,890	337,907
Long Term Debt Excluding Amount Due Within One Year		428,467	317,380
Fair Value of Long-Term Debt	[2]	455,459	351,040
Entergy Texas [Member]
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		(1,579)	(1,797)
Unamortized Debt Issuance Expense		(10,809)	(11,155)
Other		4,312	4,843
Total Long-Term Debt		1,508,407	1,451,967
Long-term Debt, Current Maturities		0	0
Long Term Debt Excluding Amount Due Within One Year		1,508,407	1,451,967
Fair Value of Long-Term Debt	[2]	1,600,156	1,590,616
System Energy [Member]
Debt Instrument [Line Items]
Unamortized Premium and Discount - Net		(503)	(634)
Unamortized Debt Issuance Expense		(1,727)	(2,062)
Other		3	2
Total Long-Term Debt		551,132	572,667
Long-term Debt, Current Maturities		50,003	2
Long Term Debt Excluding Amount Due Within One Year		501,129	572,665
Fair Value of Long-Term Debt	[2]	529,520	552,762
Value of lease obligation excluded from fair value of long-term debt calculation.		$ 34,000
Mortgage Bonds Current 2016-2021 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate		4.92%
Long-term Debt, Gross		$ 2,350,000	$ 2,350,000
Mortgage Bonds Current 2016-2021 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.55%	3.25%
Mortgage Bonds Current 2016-2021 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.125%	7.125%
Mortgage Bonds 2022-2026 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate		3.85%
Long-term Debt, Gross		$ 3,965,000	$ 3,308,276
Mortgage Bonds 2022-2026 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.40%	3.05%
Mortgage Bonds 2022-2026 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.59%	5.66%
Mortgage Bonds 2028-2041 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate		3.06%
Long-term Debt, Gross		$ 1,125,000	$ 1,270,827
Mortgage Bonds 2028-2041 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.85%	5.65%
Mortgage Bonds 2028-2041 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%	6.38%
Mortgage Bonds 2044-2066 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate		5.00%
Long-term Debt, Gross		$ 2,960,000	$ 1,860,000
Mortgage Bonds 2044-2066 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.70%	4.70%
Mortgage Bonds 2044-2066 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.625%	6.00%
Mortgage Bonds 2.40% Series Due October 2026 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.40%	0.00%
Long-term Debt, Gross		$ 400,000	$ 0
Mortgage Bonds, 2.55% Series Due June 2021 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.55%	0.00%
Long-term Debt, Gross		$ 125,000	$ 0
Mortgage Bonds 2.85% Series Due June 2028 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.85%	0.00%
Long-term Debt, Gross		$ 375,000	$ 0
Mortgage Bonds Three Point Zero Five Percent Series Due June Two Thousand Thirty One [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.05%	0.00%
Long-term Debt, Gross		$ 325,000	$ 0
Mortgage Bonds, 3.05% Series, Due June 2023 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.05%	3.05%
Long-term Debt, Gross		$ 250,000	$ 250,000
Mortgage Bonds, 3.1% Series, Due July 2023 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.10%	3.10%
Long-term Debt, Gross		$ 250,000	$ 250,000
Mortgage Bonds, 3.25% Series, Due April 2028 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%	0.00%
Long-term Debt, Gross		$ 425,000	$ 0
Mortgage Bonds, 3.25% Series, Due June 2016 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	3.25%
Long-term Debt, Gross		$ 0	$ 125,000
Mortgage Bonds, 3.3% Series, Due December 2022 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.30%	3.30%
Long-term Debt, Gross		$ 200,000	$ 200,000
Three Point Five Percent Series First Mortgage Bonds Due April Two Thousand Twenty Six [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.50%	0.00%
Long-term Debt, Gross		$ 380,000	$ 0
Mortgage Bonds, 3.75% Series, Due February 2021 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.75%	3.75%
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%	3.75%
Long-term Debt, Gross		$ 100,000	$ 100,000
Mortgage Bonds 3.7% Series, Due June 2024 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.70%	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%	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%	3.78%
Long-term Debt, Gross		$ 190,000	$ 190,000
Mortgage Bonds, 3.9% Series, Due July 2023 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.90%	3.90%
Long-term Debt, Gross		$ 100,000	$ 100,000
Mortgage Bonds, 3.95% Series, Due October 2020 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.95%	3.95%
Long-term Debt, Gross		$ 250,000	$ 250,000
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%	0.00%
Long-term Debt, Gross		$ 85,000	$ 0
Mortgage Bonds, 4.05% Series, Due September 2023 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.05%	4.05%
Long-term Debt, Gross		$ 325,000	$ 325,000
Mortgage Bonds, Four Point Nine Zero Percent Series, Due October Two Thousand Sixty Six [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.90%	0.00%
Long-term Debt, Gross		$ 260,000	$ 0
Mortgage Bonds, 4.1% Series, Due April 2023 [Member] | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.10%	4.10%
Long-term Debt, Gross		$ 250,000	$ 250,000
Mortgage Bonds, 4.1% Series, Due September 2021 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.10%	4.10%
Long-term Debt, Gross		$ 75,000	$ 75,000
Mortgage Bonds, 4.44% Series, Due January 2026 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.44%	4.44%
Long-term Debt, Gross		$ 250,000	$ 250,000
Mortgage Bonds, 4.7% Series, Due June 2063 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.70%	4.70%
Long-term Debt, Gross		$ 100,000	$ 100,000
Mortgage Bonds, 4.75% Series, Due June 2063 [Member] [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.75%	4.75%
Long-term Debt, Gross		$ 125,000	$ 125,000
Mortgage Bonds, 4.8% Series, Due May 2021 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.80%	4.80%
Long-term Debt, Gross		$ 200,000	$ 200,000
Mortgage Bonds, Four Point Eight Seven Five Percent Series Due September Two Thousand Sixty Six [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.875%	0.00%
Long-term Debt, Gross		$ 410,000	$ 0
Mortgage Bonds, Four Point Eight Seven Five Percent Series Due September Two Thousand Sixty Six [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.875%	0.00%
Long-term Debt, Gross		$ 270,000	$ 0
Mortgage Bonds, 4.9% Series, Due December 2052 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.90%	4.90%
Long-term Debt, Gross		$ 200,000	$ 200,000
Mortgage Bonds, 4.95% Series, Due December 2044 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.95%	4.95%
Long-term Debt, Gross		$ 250,000	$ 250,000
Mortgage Bonds, 4.95% Series, Due January 2045 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.95%	4.95%
Long-term Debt, Gross		$ 450,000	$ 250,000
Mortgage Bonds, 5.0% Series, Due July 2044 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.00%	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%	5.00%
Long-term Debt, Gross		$ 30,000	$ 30,000
Mortgage Bonds Five Point One Five Percent Series Due June Two Thousand Forty Five [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.15%	5.15%
Long-term Debt, Gross		$ 250,000	$ 250,000
Mortgage Bonds, 5.10% Series, Due December 2020 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.10%	5.10%
Long-term Debt, Gross		$ 25,000	$ 25,000
Mortgage Bonds, 5.25% Series, Due July 2052 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.25%	5.25%
Long-term Debt, Gross		$ 200,000	$ 200,000
Mortgage Bonds, 5.40% Series, Due November 2024 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.40%	5.40%
Long-term Debt, Gross		$ 400,000	$ 400,000
Mortgage Bonds, 5.5% Series, Due April 2066 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.50%	0.00%
Long-term Debt, Gross		$ 110,000	$ 0
Mortgage Bonds, 5.6% Series, Due September 2024 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	5.60%
Long-term Debt, Gross		$ 0	$ 33,276
Mortgage Bonds, 5.625% Series, Due June 2064 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.625%	5.625%
Long-term Debt, Gross		$ 135,000	$ 135,000
Mortgage Bonds, 5.65% Series, Due September 2029 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	5.65%
Long-term Debt, Gross		$ 0	$ 37,827
Mortgage Bonds Five Point Six Six Percent Series Due February Two Thousand Twenty Five [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	5.66%
Long-term Debt, Gross		$ 0	$ 175,000
Mortgage Bonds, 5.75% Series, Due November 2040 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	5.75%
Long-term Debt, Gross		$ 0	$ 225,000
Mortgage Bonds, 5.59% Series, Due October 2024 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.59%	5.59%
Long-term Debt, Gross		$ 300,000	$ 300,000
Mortgage Bonds, 5.875% Series, Due June 2041 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	5.875%
Long-term Debt, Gross		$ 0	$ 150,000
Mortgage Bonds, 5.9% Series, Due June 2033 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	5.90%
Long-term Debt, Gross		$ 0	$ 100,000
Mortgage Bonds, 6.0% Series, Due March 2040 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.00%
Long-term Debt, Gross		$ 0	$ 118,000
Mortgage Bonds, 6.0% Series, Due May 2018 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.00%	6.00%
Long-term Debt, Gross		$ 375,000	$ 375,000
Mortgage Bonds, 6.0% Series, Due May 2051 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.00%
Long-term Debt, Gross		$ 0	$ 150,000
Mortgage Bonds, 6.0% Series, Due November 2032 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.00%
Long-term Debt, Gross		$ 0	$ 75,000
Mortgage Bonds, 6.18% Series, Due March 2035 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.18%
Long-term Debt, Gross		$ 0	$ 85,000
Mortgage Bonds, 6.20% Series, Due April 2040 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.20%
Long-term Debt, Gross		$ 0	$ 80,000
Mortgage Bonds, 6.2% Series, Due July 2033 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.20%
Long-term Debt, Gross		$ 0	$ 240,000
Mortgage Bonds, 6.25% Series, Due April 2034 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.25%
Long-term Debt, Gross		$ 0	$ 100,000
Mortgage Bonds, 6.38% Series, Due November 2034 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	6.38%
Long-term Debt, Gross		$ 0	$ 60,000
Mortgage Bonds, 6.50%, Due September 2018 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.50%	6.50%
Long-term Debt, Gross		$ 300,000	$ 300,000
Mortgage Bonds, 6.64% Series, Due July 2019 [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.64%	6.64%
Long-term Debt, Gross		$ 150,000	$ 150,000
Mortgage Bonds, 7.125% Series, Due February 2019 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.125%	7.125%
Long-term Debt, Gross		$ 500,000	$ 500,000
Mortgage Bonds [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		2,340,000	2,110,000
Mortgage Bonds [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		5,240,000	4,213,000
Mortgage Bonds [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		1,135,000	1,030,000
Mortgage Bonds [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		350,000	226,103
Mortgage Bonds [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		1,085,000	960,000
Mortgage Bonds [Member] | System Energy [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 250,000	$ 250,000
Governmental Bonds 2017-2021 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate	[3]	2.22%
Debt Instrument, Interest Rate, Stated Percentage			1.55%
Long-term Debt, Gross	[3]	$ 99,700	$ 99,700
Governmental Bonds 2017-2021 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		1.55%
Governmental Bonds 2017-2021 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.375%	2.375%
Governmental Bonds 2022-2030 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate	[3]	3.98%
Long-term Debt, Gross	[3]	$ 332,680	$ 384,680
Governmental Bonds 2022-2030 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.375%	4.90%
Governmental Bonds 2022-2030 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.875%	5.875%
Governmental Bonds, 1.55% Series, Due 2017, Jefferson County [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	1.55%	1.55%
Long-term Debt, Gross	[4],[5]	$ 54,700	$ 54,700
Governmental Bonds, 2.38% Series, Due 2021, One Independence County [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[4],[5]	$ 45,000	$ 45,000
Governmental Bonds Two Point Three Seven Five Percent Series Due Two Thousand Twenty One Independence County [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	2.375%	2.375%
Governmental Bonds, 3.50% Series, Due 2030, Louisiana Public Facilities Authority [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	3.50%	0.00%
Long-term Debt, Gross	[4],[5]	$ 115,000	$ 0
Governmental Bonds, 4.90% Series, Due 2022, Independence County [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	0.00%	4.90%
Long-term Debt, Gross	[4],[5]	$ 0	$ 30,000
Governmental Bonds, 5.0% Series, Due 2028, Louisiana Public Facilities Autority [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	0.00%	5.00%
Long-term Debt, Gross	[4],[5]	$ 0	$ 83,680
Governmental Bonds, 5.0% Series, Due 2030, Louisiana Public Facilities Authority [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	0.00%	5.00%
Long-term Debt, Gross	[4],[5]	$ 0	$ 115,000
Governmental Bonds, 5.875% Series, Due 2022, Mississippi Business Finance Corp. [Member] | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4]	5.875%	5.875%
Long-term Debt, Gross	[4]	$ 134,000	$ 156,000
Governmental Bonds, 3.375% Series, Due 2028, Louisiana Public Facilities Authority [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[4],[5]	3.375%	0.00%
Long-term Debt, Gross	[4],[5]	$ 83,680	$ 0
Governmental Bonds [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[4]	99,700	99,700
Governmental Bonds [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[4]	198,680	198,680
Governmental Bonds [Member] | Entergy Mississippi [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[4]	0	30,000
Governmental Bonds [Member] | System Energy [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[4]	$ 134,000	156,000
Securitization Bonds 2018-2024 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate		3.90%
Long-term Debt, Gross		$ 669,310	$ 784,340
Securitization Bonds 2018-2024 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.04%	2.04%
Securitization Bonds 2018-2024 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.93%	5.93%
VIE Notes Payable 2016-2023 [Member]
Debt Instrument [Line Items]
Weighted Average Interest Rate		3.47%
Long-term Debt, Gross		$ 555,000	$ 570,600
VIE Notes Payable 2016-2023 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.62%	1.38%
VIE Notes Payable 2016-2023 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.02%	4.02%
Variable Interest Entity Notes Payable, 2.62% Series K, Due December 2017 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.62%	2.62%
Long-term Debt, Gross		$ 60,000	$ 60,000
Variable Interest Entity 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%	0.00%
Long-term Debt, Gross		$ 40,000	$ 0
Variable Interest Entity Notes Payable, 3.23% Percent Series J, Due July 2016 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	3.23%
Long-term Debt, Gross		$ 0	$ 55,000
Variable Interest Entity Notes Payable, 3.25% Series Q, Due July 2017 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%	3.25%
Long-term Debt, Gross		$ 75,000	$ 75,000
Variable Interest Entity Notes Payable, 3.25% Series G, Due July 2017 [Member | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%	3.25%
Long-term Debt, Gross		$ 25,000	$ 25,000
Variable Interest Entity 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%	0.00%
Long-term Debt, Gross		$ 20,000	$ 0
Variable Interest Entity Notes Payable, 3.30% Series F, Due March 2016 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	3.30%
Long-term Debt, Gross		$ 0	$ 20,000
Variable Interest Entity Notes Payable, 3.38% Series R, Due August 2020 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.38%	3.38%
Long-term Debt, Gross		$ 70,000	$ 70,000
Variable Interest Entity Notes Payable, 3.65% Series L, Due July 2021 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.65%	3.65%
Long-term Debt, Gross		$ 90,000	$ 90,000
Variable Interest Entity Notes Payable, 3.78% Series I, Due October 2018 [Member] | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.78%	3.78%
Long-term Debt, Gross		$ 85,000	$ 85,000
Variable Interest Entity Notes Payable, Three Point Ninety Two Percent Series H Due February Two Thousand Twenty One [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.92%	3.92%
Long-term Debt, Gross		$ 40,000	$ 40,000
Variable Interest Entity Notes Payable, 4.02% Series H, Due February Two Thousand Seventeen [Member] | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.02%	4.02%
Long-term Debt, Gross		$ 50,000	$ 50,000
Credit Facility Due June 2016, weighted avg rate 1.38% [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	1.38%
Long-term Debt, Gross		$ 0	$ 600
Variable Interest Entity Notes Payable [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		190,000	205,000
Variable Interest Entity Notes Payable [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		230,000	230,600
Variable Interest Entity Notes Payable [Member] | System Energy [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 135,000	$ 135,000
Securitization Bonds, 2.04% Series Senior Secured, Due June 2021 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.04%	2.04%
Long-term Debt, Gross		$ 100,972	$ 122,568
Securitization Bonds, 2.30% Series Senior Secured, Due August 2021 [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.30%	2.30%
Long-term Debt, Gross		$ 49,548	$ 62,966
Securitization Bonds, 2.67% Series Senior Secured, Due June 2024 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.67%	2.67%
Long-term Debt, Gross		$ 87,307	$ 98,730
Securitization Bonds, 3.65% Series Senior Secured, Due August 2019 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.65%	3.65%
Long-term Debt, Gross		$ 74,899	$ 117,462
Securitization Bonds, 4.38% Series Senior Secured, Due November 2023 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.38%	4.38%
Long-term Debt, Gross		$ 218,600	$ 218,600
Securitization Bonds, 5.79% Series Senior Secured, Series A, Due October 2018 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.79%	5.79%
Long-term Debt, Gross		$ 23,584	$ 49,614
Securitization Bonds, 5.93% Series Senior Secured, Series A, Due June 2022 [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.93%	5.93%
Long-term Debt, Gross		$ 114,400	$ 114,400
Securitization Bonds [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		49,548	62,966
Securitization Bonds [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		100,972	122,568
Securitization Bonds [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		87,307	98,730
Securitization Bonds [Member] | Entergy Texas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 431,483	$ 500,076
Entergy Corporation Notes Due January Two Thousand Seventeen[Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%	4.70%
Long-term Debt, Gross		$ 0	$ 500,000
Entergy Corporation Notes Due September 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.125%	5.125%
Long-term Debt, Gross		$ 450,000	$ 450,000
Entergy Corporation Notes Due July Two Thousand Twenty Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.00%	4.00%
Long-term Debt, Gross		$ 650,000	$ 650,000
Entergy Corporation Notes Due September Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.95%	0.00%
Long-term Debt, Gross		$ 750,000	$ 0
Note Payable To NYPA [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Long-term Debt, Gross	[6]	$ 0	$ 34,259
Implicit interest rate		4.80%
Vermont Yankee Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.17%	2.08%
Long-term Debt, Gross		$ 44,500	$ 12,000
5 Year Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		2.23%	1.98%
Long-term Debt, Gross		$ 700,000	$ 835,000
Long-Term DOE Obligation [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[7]	181,853	181,378
Long-Term DOE Obligation [Member] | Entergy Arkansas [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[8]	$ 181,853	$ 181,378
Waterford 3 Lease Obligation [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[9]	8.09%	7.45%
Long-term Debt, Gross	[9]	$ 57,492	$ 108,965
Waterford 3 Lease Obligation [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.09%
Long-term Debt, Gross		$ 57,492	$ 108,965
Implicit interest rate			7.45%
Waterford Series Collateral Trust Mortgage Notes due 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	[9]	42,703	$ 0
Waterford Series Collateral Trust Mortgage Notes due 2017 [Member] | Entergy Louisiana [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 42,703	$ 0
Implicit interest rate		7.458%
Grand Gulf Lease Obligation [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[9]	5.13%	5.13%
Long-term Debt, Gross	[9]	$ 34,359	$ 34,361
Grand Gulf Lease Obligation, 5.13% [Member] | System Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		5.13%	5.13%
Long-term Debt, Gross		$ 34,359	$ 34,361
Payable to Entergy Louisiana due November 2035 [Member] | Entergy New Orleans [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		$ 20,527	$ 25,500

[1] The fair value excludes lease obligations of $57 million at Entergy Louisiana and $34 million at System Energy, and long-term DOE obligations of $182 million at Entergy Arkansas, and includes debt due within one year. Fair values are classified as Level 2 in the fair value hierarchy discussed in Note 15 to the financial statements and are based on prices derived from inputs such as benchmark yields and reported trades.

[2] The fair value excludes lease obligations of $57 million at Entergy Louisiana and $34 million at System Energy and long-term DOE obligations of $182 million at Entergy Arkansas, and includes debt due within one year. Fair values are classified as Level 2 in the fair value hierarchy discussed in Note 15 to the financial statements and are based on prices derived from inputs such as benchmark yields and reported trades.

[3] Consists of pollution control revenue bonds and environmental revenue bonds, some of which are secured by collateral first mortgage bonds.

[4] Consists of pollution control revenue bonds and environmental revenue bonds.

[5] The bonds are secured by a series of collateral mortgage bonds.

[6] These notes do not have a stated interest rate, but have an implicit interest rate of 4.8%.

[7] Pursuant to the Nuclear Waste Policy Act of 1982, Entergy’s nuclear owner/licensee subsidiaries have contracts with the DOE for spent nuclear fuel disposal service. The contracts include a one-time fee for generation prior to April 7, 1983. Entergy Arkansas is the only Entergy company that generated electric power with nuclear fuel prior to that date and includes the one-time fee, plus accrued interest, in long-term debt.

[8] Pursuant to the Nuclear Waste Policy Act of 1982, Entergy’s nuclear owner/licensee subsidiaries have contracts with the DOE for spent nuclear fuel disposal service. The contracts include a one-time fee for generation prior to April 7, 1983. Entergy Arkansas is the only Entergy company that generated electric power with nuclear fuel prior to that date and includes the one-time fee, plus accrued interest, in long-term debt.

[9] See Note 10 to the financial statements for further discussion of the Waterford 3 lease obligation and Entergy Louisiana’s acquisition of the equity participant’s beneficial interest in the Waterford 3 leased assets and for further discussion of the Grand Gulf lease obligation