Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
OPERATING ACTIVITIES
Consolidated net income (loss)	[1]	$ (564,503)	$ (156,734)	$ 960,257
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		2,123,291	2,117,236	2,127,892
Deferred income taxes, investment tax credits, and non-current taxes accrued		(836,257)	(820,350)	596,935
Asset Write-Offs, Impairments, And Related Charges		2,835,637	2,104,906	123,527
Gain on sale of asset		0	(154,037)	0
Changes in working capital:
Receivables		(96,975)	38,152	98,493
Fuel inventory		38,210	(12,376)	3,524
Accounts payable		174,421	(135,211)	(12,996)
Prepaid taxes and taxes accrued		(28,963)	81,969	(62,985)
Interest accrued		(7,335)	(11,445)	25,013
Deferred fuel costs		(241,896)	298,725	(70,691)
Other working capital accounts		31,197	(113,701)	112,390
Changes in provisions for estimated losses		20,905	42,566	301,871
Changes in other regulatory assets		(48,469)	262,317	(1,061,537)
Changes in other regulatory liabilities		158,031	61,241	87,654
Changes in pensions and other postretirement liabilities		(136,919)	(446,418)	1,308,166
Other		(421,676)	134,344	(647,952)
Net cash flow provided by operating activities		2,998,699	3,291,184	3,889,561
INVESTING ACTIVITIES
Construction/capital expenditures		(2,780,222)	(2,500,860)	(2,119,191)
Allowance for equity funds used during construction		68,345	53,635	68,375
Nuclear fuel purchases		(314,706)	(493,604)	(537,548)
Payment for purchase of plant		(949,329)	0	0
Proceeds from sale of assets		0	487,406	10,100
NYPA value sharing payment		0	(70,790)	(72,000)
Payments To Storm Reserve Escrow Account		(1,544)	(69,163)	(276,057)
Receipts from storm reserve escrow account		0	5,916	0
Changes in securitization account		4,007	(5,806)	1,511
Decrease in other investments		9,055	571	46,983
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		169,085	18,296	0
Proceeds from nuclear decommissioning trust fund sales		2,408,920	2,492,176	1,872,115
Investment in nuclear decommissioning trust funds		(2,484,627)	(2,550,958)	(1,989,446)
Proceeds from insurance		20,968	24,399	40,670
Net cash flow used in investing activities		(3,850,048)	(2,608,782)	(2,954,488)
Proceeds from the issuance of:
Long-term debt		6,800,558	3,502,189	3,100,069
Preferred stock of subsidiary		0	107,426	0
Common stock and treasury stock		33,114	24,366	194,866
Retirement of long-term debt		(5,311,324)	(3,461,518)	(2,323,313)
Repurchase of common stock		0	(99,807)	(183,271)
Payments for Repurchase of Preferred Stock and Preference Stock		(115,283)	(94,285)	0
Changes in credit borrowings and commercial paper - net		(79,337)	(104,047)	(448,475)
Dividends paid:
Common stock		(611,835)	(598,897)	(596,117)
Preferred stock		(20,789)	(19,758)	(19,511)
Other		(6,872)	(9,136)	23,579
Net cash flow provided by (used in) financing activities		688,232	(753,467)	(252,173)
Net increase (decrease) in cash and cash equivalents		(163,117)	(71,065)	682,900
Cash and cash equivalents at beginning of period		1,350,961	1,422,026	739,126
Cash and cash equivalents at end of period		1,187,844	1,350,961	1,422,026
Cash paid during the period for:
Interest - net of amount capitalized		746,779	663,630	611,376
Income taxes		95,317	103,589	77,799
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		167,212	74,272	121,392
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		414,933	400,156	387,945
Deferred income taxes, investment tax credits, and non-current taxes accrued		201,219	(4,330)	130,132
Changes in working capital:
Receivables		(39,118)	20,813	25,661
Fuel inventory		29,929	(11,791)	(9,394)
Accounts payable		143,645	(2,528)	(120,097)
Prepaid taxes and taxes accrued		37,485	(54,531)	14,261
Interest accrued		(3,303)	(367)	(1,786)
Deferred fuel costs		(105,741)	151,332	(140,483)
Other working capital accounts		(46,490)	(44,784)	72,411
Changes in provisions for estimated losses		13,130	(137)	(57)
Changes in other regulatory assets		(95,464)	60,279	(367,234)
Changes in pensions and other postretirement liabilities		(36,805)	(110,936)	252,639
Other		(4,121)	(2,558)	38,436
Net cash flow provided by operating activities		676,511	474,890	403,826
INVESTING ACTIVITIES
Construction/capital expenditures		(666,289)	(624,546)	(535,464)
Allowance for equity funds used during construction		17,754	15,882	10,789
Nuclear fuel purchases		(102,050)	(132,252)	(195,092)
Proceeds from sale of nuclear fuel		39,313	52,281	75,860
Payment for purchase of plant		(237,323)	0	0
Changes in securitization account		64	(108)	(261)
Proceeds from nuclear decommissioning trust fund sales		197,390	212,954	181,489
Investment in nuclear decommissioning trust funds		(213,093)	(223,357)	(190,062)
Change in money pool receivable - net		0	2,218	15,313
Proceeds from insurance		10,404	11,654	36,600
Other		5,835	0	200
Net cash flow used in investing activities		(947,995)	(685,274)	(600,628)
Proceeds from the issuance of:
Long-term debt		817,563	0	707,465
Retirement of long-term debt		(628,433)	(13,234)	(447,815)
Proceeds from Contributions from Parent		200,000	0	0
Payments for Repurchase of Redeemable Preferred Stock		(85,283)	0	0
Change in money pool payable - net		(1,510)	52,742	0
Changes in credit borrowings and commercial paper - net		(11,690)	(36,278)	47,968
Dividends paid:
Common stock		0	0	(10,000)
Preferred stock		(6,631)	(6,873)	(6,873)
Other		(1,158)	4,657	(2,460)
Net cash flow provided by (used in) financing activities		282,858	1,014	288,285
Net increase (decrease) in cash and cash equivalents		11,374	(209,370)	91,483
Cash and cash equivalents at beginning of period		9,135	218,505	127,022
Cash and cash equivalents at end of period		20,509	9,135	218,505
Cash paid during the period for:
Interest - net of amount capitalized		112,912	100,435	90,285
Income taxes		(135,709)	103,296	(48,948)
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		622,047	446,639	446,022
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		620,211	593,635	580,742
Deferred income taxes, investment tax credits, and non-current taxes accrued		178,549	97,461	248,686
Changes in working capital:
Receivables		(102,200)	(12,795)	101,965
Fuel inventory		(2,693)	(887)	2,708
Accounts payable		(36,720)	23,641	(28,422)
Prepaid taxes and taxes accrued		(235,246)	105,687	183,313
Interest accrued		1,218	2,933	3,567
Deferred fuel costs		(17,023)	4,222	40,245
Other working capital accounts		6,462	(41,890)	17,761
Changes in provisions for estimated losses		490	(8,946)	274,349
Changes in other regulatory assets		57,579	130,762	(314,837)
Changes in other regulatory liabilities		62,351	96,234	29,713
Changes in pensions and other postretirement liabilities		(52,559)	(98,695)	299,319
Other		(64,554)	(182,485)	(166,540)
Net cash flow provided by operating activities		1,037,912	1,155,516	1,718,591
INVESTING ACTIVITIES
Construction/capital expenditures		(1,030,416)	(845,227)	(757,376)
Allowance for equity funds used during construction		27,925	19,192	46,240
Nuclear fuel purchases		(73,618)	(244,040)	(172,297)
Proceeds from sale of nuclear fuel		63,304	54,595	126,004
Payment for purchase of plant		(474,670)	0	0
Proceeds from sale of assets		0	59,610	0
Investment in affiliates		0	0	(293,516)
Payments To Storm Reserve Escrow Account		0	(308)	(268,576)
Changes in securitization account		351	(137)	1,480
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		57,934	0	0
Proceeds from nuclear decommissioning trust fund sales		219,182	123,474	216,688
Investment in nuclear decommissioning trust funds		(257,209)	(158,028)	(245,446)
Change in money pool receivable - net		(16,349)	(3,339)	16,758
Proceeds from insurance		10,564	0	0
Other		(1,063)	0	0
Net cash flow used in investing activities		(1,474,065)	(994,208)	(1,330,041)
Proceeds from the issuance of:
Long-term debt		2,450,063	77,172	751,565
Retirement of long-term debt		(1,488,870)	(180,595)	(512,180)
Payments for Repurchase of Preferred Stock and Related Expense		0	(110,286)	0
Changes in credit borrowings and commercial paper - net		(56,562)	14,322	28,310
Dividends paid:
Common stock		(285,500)	(226,000)	(487,502)
Preferred stock		0	(6,082)	(7,775)
Other		(4,230)	(15,253)	19,960
Net cash flow provided by (used in) financing activities		614,901	(446,722)	(207,622)
Net increase (decrease) in cash and cash equivalents		178,748	(285,414)	180,928
Cash and cash equivalents at beginning of period		35,102	320,516	139,588
Cash and cash equivalents at end of period		213,850	35,102	320,516
Cash paid during the period for:
Interest - net of amount capitalized		324,456	243,745	241,436
Income taxes		156,605	89,124	(242,420)
Noncash Capital Contribution from Parent		0	(267,826)	0
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		109,184	92,708	74,821
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		136,214	129,029	113,903
Deferred income taxes, investment tax credits, and non-current taxes accrued		60,986	18,673	32,472
Changes in working capital:
Receivables		(28,819)	50,199	(27,444)
Fuel inventory		401	(8,537)	6,163
Accounts payable		33,733	(26,682)	(14,618)
Prepaid taxes and taxes accrued		20,579	(10,104)	318
Interest accrued		822	(2,341)	2,789
Deferred fuel costs		(114,711)	105,560	40,251
Other working capital accounts		(5,222)	(663)	17,567
Changes in provisions for estimated losses		6,378	(2,080)	14,468
Changes in other regulatory assets		(3,626)	39,582	(36,875)
Changes in pensions and other postretirement liabilities		(10,648)	(14,939)	68,434
Other		7,009	1,874	11,214
Net cash flow provided by operating activities		212,280	372,279	303,463
INVESTING ACTIVITIES
Construction/capital expenditures		(310,356)	(235,894)	(179,544)
Allowance for equity funds used during construction		5,801	3,095	2,380
Change in money pool receivable - net		15,335	(25,286)	(644)
Proceeds from insurance		0	12,932	0
Other		(224)	26	43
Net cash flow used in investing activities		(289,444)	(245,127)	(177,765)
Proceeds from the issuance of:
Long-term debt		623,812	0	98,668
Retirement of long-term debt		(562,400)	0	(95,000)
Payments for Repurchase of Redeemable Preferred Stock		(30,000)	0	0
Change in money pool payable - net		0	0	(3,536)
Dividends paid:
Common stock		(24,000)	(40,000)	(61,400)
Preferred stock		(2,755)	(2,828)	(2,828)
Other		3,736	(352)	0
Net cash flow provided by (used in) financing activities		8,393	(43,180)	(64,096)
Net increase (decrease) in cash and cash equivalents		(68,771)	83,972	61,602
Cash and cash equivalents at beginning of period		145,605	61,633	31
Cash and cash equivalents at end of period		76,834	145,605	61,633
Cash paid during the period for:
Interest - net of amount capitalized		53,693	57,576	51,509
Income taxes		(12,487)	61,333	19,650
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		48,849	44,925	31,030
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		51,737	43,205	45,426
Deferred income taxes, investment tax credits, and non-current taxes accrued		140,283	22,180	24,380
Changes in working capital:
Receivables		(3,888)	7,878	21,098
Fuel inventory		71	1,104	(17)
Accounts payable		15,434	2,738	(7,702)
Interest accrued		534	1,270	(63)
Deferred fuel costs		(33,839)	(182)	5,409
Other working capital accounts		2,480	(2,995)	(18,030)
Changes in provisions for estimated losses		4,326	58,310	10,877
Changes in other regulatory assets		(2,784)	(70,471)	(41,517)
Changes in pensions and other postretirement liabilities		(6,859)	(18,831)	29,942
Other		(11,133)	15,937	(11,900)
Net cash flow provided by operating activities		205,211	105,068	88,933
INVESTING ACTIVITIES
Construction/capital expenditures		(90,512)	(91,928)	(70,903)
Allowance for equity funds used during construction		1,178	1,404	1,750
Payment for purchase of plant		(237,335)	0	0
Investment in affiliates		(38)	0	0
Payments To Storm Reserve Escrow Account		(438)	(68,886)	(7,525)
Receipts from storm reserve escrow account		3	5,922	0
Changes in securitization account		2,882	(4,620)	0
Change in money pool receivable - net		1,579	(15,352)	4,295
Net cash flow used in investing activities		(322,681)	(173,460)	(72,383)
Proceeds from the issuance of:
Long-term debt		240,604	95,367	0
Retirement of long-term debt		(132,526)	0	0
Repayment of long-term payable due to Entergy Louisiana		(4,973)	(59,610)	0
Proceeds from Contributions from Parent		47,750	87,500	0
Dividends paid:
Common stock		(18,720)	(7,250)	(6,000)
Preferred stock		(965)	(965)	(965)
Other		492	(163)	(685)
Net cash flow provided by (used in) financing activities		131,662	114,879	(7,650)
Net increase (decrease) in cash and cash equivalents		14,192	46,487	8,900
Cash and cash equivalents at beginning of period		88,876	42,389	33,489
Cash and cash equivalents at end of period		103,068	88,876	42,389
Cash paid during the period for:
Interest - net of amount capitalized		19,317	14,951	15,877
Income taxes		(85,962)	8,110	4,871
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		107,538	69,625	74,804
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		107,026	102,410	99,609
Deferred income taxes, investment tax credits, and non-current taxes accrued		20,794	(23,292)	2,829
Changes in working capital:
Receivables		(9,300)	21,443	24,318
Fuel inventory		9,765	2,960	5,433
Accounts payable		(22,462)	(16,913)	(19,854)
Prepaid taxes and taxes accrued		10,018	3,484	57,484
Interest accrued		(3,229)	(551)	(1,489)
Deferred fuel costs		29,419	36,985	(15,954)
Other working capital accounts		(3,354)	2,468	9,045
Changes in provisions for estimated losses		(1,735)	(2,899)	3,139
Changes in other regulatory assets		74,389	125,133	2,809
Changes in pensions and other postretirement liabilities		(10,204)	(33,474)	59,725
Other		(2,064)	(3,111)	13,266
Net cash flow provided by operating activities		306,601	284,268	315,164
INVESTING ACTIVITIES
Construction/capital expenditures		(337,963)	(320,408)	(195,794)
Allowance for equity funds used during construction		7,743	5,751	2,981
Changes in securitization account		710	(942)	292
Change in money pool receivable - net		(681)	306	5,981
Net cash flow used in investing activities		(330,191)	(315,293)	(186,540)
Proceeds from the issuance of:
Long-term debt		123,502	246,607	131,163
Retirement of long-term debt		(68,593)	(265,734)	(213,450)
Change in money pool payable - net		(22,068)	22,068	0
Dividends paid:
Common stock		0	0	(70,000)
Other		(5,252)	(175)	7,616
Net cash flow provided by (used in) financing activities		27,589	2,766	(144,671)
Net increase (decrease) in cash and cash equivalents		3,999	(28,259)	(16,047)
Cash and cash equivalents at beginning of period		2,182	30,441	46,488
Cash and cash equivalents at end of period		6,181	2,182	30,441
Cash paid during the period for:
Interest - net of amount capitalized		88,489	83,290	85,695
Income taxes		28,523	60,359	(2,653)
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		96,744	111,318	96,334
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		224,879	270,514	254,199
Deferred income taxes, investment tax credits, and non-current taxes accrued		99,531	200,797	79,835
Changes in working capital:
Receivables		(15,846)	5,879	37,345
Accounts payable		2,720	(352)	(6,372)
Prepaid taxes and taxes accrued		(6,555)	(32,594)	12,146
Interest accrued		(134)	(19,013)	21,371
Other working capital accounts		(15,470)	13,576	(11,688)
Changes in other regulatory assets		(58,279)	(4,565)	(64,262)
Changes in pensions and other postretirement liabilities		5,586	(16,888)	49,741
Other		8,763	(26,136)	(40,384)
Net cash flow provided by operating activities		341,939	502,536	428,265
INVESTING ACTIVITIES
Construction/capital expenditures		(88,037)	(70,358)	(63,774)
Allowance for equity funds used during construction		7,944	8,494	5,069
Nuclear fuel purchases		(151,068)	(64,977)	(181,209)
Proceeds from sale of nuclear fuel		11,467	57,681	61,076
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		15,806	0	0
Proceeds from nuclear decommissioning trust fund sales		499,252	390,371	392,872
Investment in nuclear decommissioning trust funds		(534,083)	(421,220)	(424,814)
Change in money pool receivable - net		6,117	(37,553)	6,850
Net cash flow used in investing activities		(232,602)	(137,562)	(203,930)
Proceeds from the issuance of:
Retirement of long-term debt		(22,002)	(136,310)	(46,743)
Changes in credit borrowings and commercial paper - net		66,893	(20,404)	20,404
Dividends paid:
Common stock		(139,000)	(200,750)	(101,930)
Other		(26)	(28)	(29)
Net cash flow provided by (used in) financing activities		(94,135)	(357,492)	(128,298)
Net increase (decrease) in cash and cash equivalents		15,202	7,482	96,037
Cash and cash equivalents at beginning of period		230,661	223,179	127,142
Cash and cash equivalents at end of period		245,863	230,661	223,179
Cash paid during the period for:
Interest - net of amount capitalized		36,152	47,864	27,834
Income taxes		$ (23,565)	$ (114,092)	$ (10,065)

[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.