Consolidated Statements Of Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
OPERATING REVENUES
Electric		$ 8,866,659	$ 9,308,678	$ 9,591,902
Natural gas		129,348	142,746	181,794
Competitive businesses		1,849,638	2,061,827	2,721,225
TOTAL		10,845,645	11,513,251	12,494,921
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		1,809,200	2,452,171	2,632,558
Purchased power		1,220,527	1,390,805	1,915,414
Nuclear refueling outage expenses		208,678	251,316	267,679
Operation and maintenance expense		3,296,711	3,354,981	3,310,536
Asset Write-Offs, Impairments, And Related Charges		2,835,637	2,104,906	179,752
Decommissioning		327,425	280,272	272,621
Taxes other than income taxes		592,502	619,422	604,606
Depreciation and amortization		1,347,187	1,337,276	1,318,638
Other regulatory charges (credits) - net		94,243	175,304	(13,772)
TOTAL		11,732,110	11,966,453	10,488,032
Gain on sale of asset		0	154,037	0
OPERATING INCOME (LOSS)		(886,465)	(299,165)	2,006,889
OTHER INCOME
Allowance for equity funds used during construction		67,563	51,908	64,802
Investment Income, Net		145,127	187,062	147,686
Miscellaneous - net		(41,617)	(95,997)	(42,016)
TOTAL		171,073	142,973	170,472
INTEREST EXPENSE
Interest expense		700,545	670,096	661,083
Allowance for borrowed funds used during construction		(34,175)	(26,627)	(33,576)
TOTAL		666,370	643,469	627,507
INCOME (LOSS) BEFORE INCOME TAXES		(1,381,762)	(799,661)	1,549,854
Income Tax Expense (Benefit)		(817,259)	(642,927)	589,597
CONSOLIDATED NET INCOME (LOSS)	[1]	(564,503)	(156,734)	960,257
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		19,115	19,828	19,536
NET INCOME		$ (583,618)	$ (176,562)	$ 940,721
Earnings (loss) per average common share:
Basic (in usd per share)		$ (3.26)	$ (0.99)	$ 5.24
Diluted (in usd per share)		$ (3.26)	$ (0.99)	$ 5.22
Basic average number of common shares outstanding		178,885,660	179,176,356	179,506,151
Diluted average number of common shares outstanding		178,885,660	179,176,356	180,296,885
Entergy Arkansas [Member]
OPERATING REVENUES
Electric		$ 2,086,608	$ 2,253,564	$ 2,172,391
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		325,036	535,919	327,695
Purchased power		233,350	380,081	528,815
Nuclear refueling outage expenses		56,650	51,411	43,258
Operation and maintenance expense		706,573	734,118	647,461
Decommissioning		53,610	50,414	46,972
Taxes other than income taxes		93,109	99,926	91,470
Depreciation and amortization		264,215	246,897	236,770
Other regulatory charges (credits) - net		7,737	(24,608)	(20,054)
TOTAL		1,740,280	2,074,158	1,902,387
OPERATING INCOME (LOSS)		346,328	179,406	270,004
OTHER INCOME
Allowance for equity funds used during construction		17,099	14,227	7,238
Investment Income, Net		19,087	22,382	23,075
Miscellaneous - net		(1,446)	(3,385)	(5,144)
TOTAL		34,740	33,224	25,169
INTEREST EXPENSE
Interest expense		115,311	105,622	93,921
Allowance for borrowed funds used during construction		(9,228)	(7,805)	(3,769)
TOTAL		106,083	97,817	90,152
INCOME (LOSS) BEFORE INCOME TAXES		274,985	114,813	205,021
Income Tax Expense (Benefit)		107,773	40,541	83,629
CONSOLIDATED NET INCOME (LOSS)		167,212	74,272	121,392
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		5,270	6,873	6,873
NET INCOME		161,942	67,399	114,519
Entergy Louisiana [Member]
OPERATING REVENUES
Electric		4,126,343	4,361,524	4,668,814
Natural gas		50,705	55,622	71,690
TOTAL		4,177,048	4,417,146	4,740,504
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		804,433	850,869	1,029,793
Purchased power		890,058	1,129,910	1,508,104
Nuclear refueling outage expenses		51,361	44,480	51,790
Operation and maintenance expense		923,779	997,546	907,308
Decommissioning		46,944	43,445	41,493
Taxes other than income taxes		165,665	167,966	159,594
Depreciation and amortization		451,290	437,036	408,073
Other regulatory charges (credits) - net		44,131	27,562	(43,484)
TOTAL		3,377,661	3,698,814	4,062,671
OPERATING INCOME (LOSS)		799,387	718,332	677,833
OTHER INCOME
Allowance for equity funds used during construction		27,925	19,192	46,240
Investment Income, Net		154,778	150,168	134,885
Miscellaneous - net		(11,597)	(13,190)	850
TOTAL		171,106	156,170	181,975
INTEREST EXPENSE
Interest expense		273,283	259,894	253,455
Allowance for borrowed funds used during construction		(14,571)	(10,702)	(24,721)
TOTAL		258,712	249,192	228,734
INCOME (LOSS) BEFORE INCOME TAXES		711,781	625,310	631,074
Income Tax Expense (Benefit)		89,734	178,671	185,052
CONSOLIDATED NET INCOME (LOSS)		622,047	446,639	446,022
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		0	5,737	7,796
NET INCOME		622,047	440,902	438,226
Entergy Mississippi [Member]
OPERATING REVENUES
Electric		1,094,649	1,396,985	1,524,193
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		95,090	291,666	325,643
Purchased power		297,902	389,950	493,533
Operation and maintenance expense		250,443	261,255	256,339
Write-Off Of Regulatory Asset For New Nuclear		0	0	56,225
Taxes other than income taxes		94,482	94,152	87,936
Depreciation and amortization		136,214	129,029	113,903
Other regulatory charges (credits) - net		(3,721)	19,027	3,854
TOTAL		870,410	1,185,079	1,337,433
OPERATING INCOME (LOSS)		224,239	211,906	186,760
OTHER INCOME
Allowance for equity funds used during construction		5,801	3,095	2,380
Investment Income, Net		656	195	1,055
Miscellaneous - net		(3,531)	(4,418)	(3,905)
TOTAL		2,926	(1,128)	(470)
INTEREST EXPENSE
Interest expense		57,114	57,842	57,002
Allowance for borrowed funds used during construction		(2,987)	(1,644)	(1,243)
TOTAL		54,127	56,198	55,759
INCOME (LOSS) BEFORE INCOME TAXES		173,038	154,580	130,531
Income Tax Expense (Benefit)		63,854	61,872	55,710
CONSOLIDATED NET INCOME (LOSS)		109,184	92,708	74,821
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		2,443	2,828	2,828
NET INCOME		106,741	89,880	71,993
Entergy New Orleans [Member]
OPERATING REVENUES
Electric		586,820	584,322	625,088
Natural gas		78,643	87,124	110,104
TOTAL		665,463	671,446	735,192
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		40,489	96,307	178,347
Purchased power		299,551	277,851	271,159
Operation and maintenance expense		117,471	119,087	131,549
Taxes other than income taxes		48,078	46,660	49,964
Depreciation and amortization		51,737	43,205	45,426
Other regulatory charges (credits) - net		8,258	3,366	791
TOTAL		565,584	586,476	677,236
OPERATING INCOME (LOSS)		99,879	84,970	57,956
OTHER INCOME
Allowance for equity funds used during construction		1,178	1,404	1,750
Investment Income, Net		256	73	95
Miscellaneous - net		(3,144)	339	614
TOTAL		(1,710)	1,816	2,459
INTEREST EXPENSE
Interest expense		21,061	17,312	16,820
Allowance for borrowed funds used during construction		(446)	(641)	(885)
TOTAL		20,615	16,671	15,935
INCOME (LOSS) BEFORE INCOME TAXES		77,554	70,115	44,480
Income Tax Expense (Benefit)		28,705	25,190	13,450
CONSOLIDATED NET INCOME (LOSS)		48,849	44,925	31,030
Noncontrolling Interest in Net Income (Loss) Preferred Unit Holders, Redeemable		965	965	965
NET INCOME		47,884	43,960	30,065
Entergy Texas [Member]
OPERATING REVENUES
Electric		1,615,619	1,707,203	1,851,982
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		271,968	277,810	282,809
Purchased power		616,597	709,947	881,438
Operation and maintenance expense		220,566	254,731	232,955
Asset Write-Offs, Impairments, And Related Charges		0	23,472	0
Taxes other than income taxes		70,973	72,945	70,439
Depreciation and amortization		107,026	102,410	99,609
Other regulatory charges (credits) - net		82,879	82,243	76,017
TOTAL		1,370,009	1,523,558	1,643,267
OPERATING INCOME (LOSS)		245,610	183,645	208,715
OTHER INCOME
Allowance for equity funds used during construction		7,617	5,678	2,959
Investment Income, Net		987	684	1,106
Miscellaneous - net		(746)	(798)	(2,345)
TOTAL		7,858	5,564	1,720
INTEREST EXPENSE
Interest expense		87,776	86,024	88,049
Allowance for borrowed funds used during construction		(4,943)	(3,690)	(2,062)
TOTAL		82,833	82,334	85,987
INCOME (LOSS) BEFORE INCOME TAXES		170,635	106,875	124,448
Income Tax Expense (Benefit)		63,097	37,250	49,644
CONSOLIDATED NET INCOME (LOSS)		107,538	69,625	74,804
System Energy [Member]
OPERATING REVENUES
Electric		548,291	632,405	664,364
Operation and Maintenance:
Fuel, fuel-related expenses, and gas purchased for resale		27,416	89,598	84,658
Nuclear refueling outage expenses		19,512	21,654	23,309
Operation and maintenance expense		153,064	156,552	156,502
Decommissioning		50,797	47,993	41,835
Taxes other than income taxes		25,195	27,281	25,160
Depreciation and amortization		136,195	143,133	142,583
Other regulatory charges (credits) - net		(45,041)	(39,434)	(30,799)
TOTAL		367,138	446,777	443,248
OPERATING INCOME (LOSS)		181,153	185,628	221,116
OTHER INCOME
Allowance for equity funds used during construction		7,944	8,494	5,069
Investment Income, Net		14,793	14,437	11,037
Miscellaneous - net		(556)	(876)	(529)
TOTAL		22,181	22,055	15,577
INTEREST EXPENSE
Interest expense		37,529	45,532	58,384
Allowance for borrowed funds used during construction		(2,000)	(2,244)	(1,335)
TOTAL		35,529	43,288	57,049
INCOME (LOSS) BEFORE INCOME TAXES		167,805	164,395	179,644
Income Tax Expense (Benefit)		71,061	53,077	83,310
CONSOLIDATED NET INCOME (LOSS)		$ 96,744	$ 111,318	$ 96,334

[1] (a) Consolidated net income and preferred dividend requirements of subsidiaries include $19.1 million for 2016, $14.9 million for 2015, and $12.9 million for 2014 of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented as equity.