Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
OPERATING ACTIVITIES
Consolidated net income (loss)	[1]	$ 1,201,035	$ (261,583)
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		1,548,872	1,612,690
Deferred income taxes, investment tax credits, and non-current taxes accrued		119,603	(267,984)
Impairment of Long-Lived Assets Held-for-use		33,170	1,642,204
Changes in working capital:
Receivables		(270,847)	(222,311)
Fuel inventory		28,900	(7,578)
Accounts payable		99,933	(90,309)
Taxes accrued		29,429	108,229
Interest accrued		(13,487)	(34,368)
Deferred fuel costs		(159,592)	165,384
Other working capital accounts		(78,553)	(133,142)
Changes in provisions for estimated losses		2,760	55,177
Changes in other regulatory assets		164,716	155,244
Changes in other regulatory liabilities		110,999	(95,327)
Changes in pensions and other postretirement liabilities		(305,200)	(307,638)
Other Noncash Income (Expense)		(259,343)	30,957
Net cash flow provided by operating activities		2,252,395	2,349,645
INVESTING ACTIVITIES
Construction/capital expenditures		(2,003,427)	(1,701,758)
Allowance for equity funds used during construction		48,807	39,428
Payments to Acquire Property, Plant, and Equipment		(949,329)	0
Nuclear fuel purchases		(160,343)	(340,262)
Payments for Nuclear Fuel		(160,343)	(340,262)
NYPA value sharing payment		0	(70,790)
Payments to storm reserve escrow account		(1,203)	(68,956)
Decrease (increase) in other investments		12,374	(15,323)
Proceeds from nuclear decommissioning trust fund sales		1,796,566	1,487,759
Investment in nuclear decommissioning trust funds		(1,844,514)	(1,520,461)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		122,488	0
Proceeds from insurance		0	12,745
Changes in securitization account		(3,911)	(8,756)
Net cash flow used in investing activities		(2,982,492)	(2,186,374)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		5,508,461	2,205,884
Common stock and treasury stock		33,120	24,218
Retirement of long-term debt		(4,229,599)	(2,295,118)
Payments for Repurchase of Common Stock		0	(99,807)
Payments for Repurchase of Preferred Stock and Preference Stock		(85,283)	(94,285)
Changes in credit borrowings and commercial paper - net		(60,985)	183,627
Dividends paid:
Common stock		(455,993)	(447,268)
Preferred stock		(16,947)	(14,848)
Other		(6,204)	(7,102)
Net cash flow provided by (used in) financing activities		686,570	(544,699)
Net decrease in cash and cash equivalents		(43,527)	(381,428)
Cash and cash equivalents at beginning of period		1,350,961	1,422,026
Cash and cash equivalents at end of period		1,307,434	1,040,598
Cash paid / (received) during the period for:
Interest - net of amount capitalized		584,362	523,489
Income taxes		79,988	95,779
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		73,418	72,616
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		176,571	203,761
Deferred income taxes, investment tax credits, and non-current taxes accrued		73,829	181,430
Changes in working capital:
Receivables		9,084	7,800
Accounts payable		(2,217)	(3,480)
Taxes accrued		(30,063)	(159,911)
Interest accrued		406	(17,522)
Other working capital accounts		(22,051)	(2,710)
Changes in other regulatory assets		(12,392)	(4,145)
Changes in pensions and other postretirement liabilities		(15,789)	(17,759)
Other Noncash Income (Expense)		(16,037)	(20,239)
Net cash flow provided by operating activities		234,759	239,841
INVESTING ACTIVITIES
Construction/capital expenditures		(71,471)	(48,756)
Allowance for equity funds used during construction		6,089	5,945
Change in money pool receivable - net		8,415	(1,003)
Nuclear fuel purchases		(137,248)	(51,645)
Payments for Nuclear Fuel		(137,248)	(51,645)
Proceeds from sale of nuclear fuel		11,467	57,681
Proceeds from nuclear decommissioning trust fund sales		392,926	325,367
Investment in nuclear decommissioning trust funds		(419,255)	(348,606)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		15,806	0
Net cash flow used in investing activities		(193,271)	(61,017)
Proceeds from the issuance of:
Retirement of long-term debt		(22,002)	(111,310)
Changes in credit borrowings and commercial paper - net		80,041	(5,836)
Dividends paid:
Common stock		(139,000)	(130,750)
Other		(26)	(28)
Net cash flow provided by (used in) financing activities		(80,987)	(247,924)
Net decrease in cash and cash equivalents		(39,499)	(69,100)
Cash and cash equivalents at beginning of period		230,661	223,179
Cash and cash equivalents at end of period		191,162	154,079
Cash paid / (received) during the period for:
Interest - net of amount capitalized		27,087	47,664
Income taxes		3,402	25,304
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		163,333	95,052
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		319,845	303,653
Deferred income taxes, investment tax credits, and non-current taxes accrued		163,202	4,483
Changes in working capital:
Receivables		(116,584)	(74,495)
Fuel inventory		28,968	140
Accounts payable		95,116	16,193
Taxes accrued		(78,879)	34,588
Interest accrued		5,909	4,196
Deferred fuel costs		(50,687)	106,499
Other working capital accounts		4,259	(26,988)
Changes in provisions for estimated losses		130	497
Changes in other regulatory assets		(5,680)	35,483
Changes in pensions and other postretirement liabilities		(77,823)	(97,650)
Other Noncash Income (Expense)		22,691	6,551
Net cash flow provided by operating activities		473,800	408,202
INVESTING ACTIVITIES
Construction/capital expenditures		(494,071)	(428,491)
Allowance for equity funds used during construction		13,134	11,394
Payments to Acquire Property, Plant, and Equipment		(237,324)	0
Change in money pool receivable - net		0	(217)
Nuclear fuel purchases		(80,716)	(119,285)
Payments for Nuclear Fuel		(80,716)	(119,285)
Proceeds from sale of nuclear fuel		40,336	52,281
Proceeds from nuclear decommissioning trust fund sales		165,038	190,759
Investment in nuclear decommissioning trust funds		(176,981)	(197,787)
Changes in securitization account		(3,524)	(4,431)
Other		(102)	0
Net cash flow used in investing activities		(774,210)	(495,777)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		777,671	0
Proceeds from Contributions from Parent		200,000	0
Payments for Repurchase of Redeemable Preferred Stock		85,283	0
Retirement of long-term debt		(621,608)	(6,521)
Change in money pool payable - net		(3,669)	0
Changes in credit borrowings and commercial paper - net		35,717	(10,728)
Dividends paid:
Preferred stock		(6,274)	(5,155)
Other		(1,868)	10,834
Net cash flow provided by (used in) financing activities		294,686	(11,570)
Net decrease in cash and cash equivalents		(5,724)	(99,145)
Cash and cash equivalents at beginning of period		9,135	218,505
Cash and cash equivalents at end of period		3,411	119,360
Cash paid / (received) during the period for:
Interest - net of amount capitalized		78,500	70,902
Income taxes		7,242	17,592
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		554,437	422,230
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		462,007	451,967
Deferred income taxes, investment tax credits, and non-current taxes accrued		155,996	4,574
Changes in working capital:
Receivables		(159,517)	(137,129)
Fuel inventory		(1,578)	(650)
Accounts payable		(18,420)	2,500
Taxes accrued		(55,780)	179,275
Interest accrued		7,531	2,227
Deferred fuel costs		(6,091)	(21,311)
Other working capital accounts		(2,503)	(38,176)
Changes in provisions for estimated losses		1,658	(4,747)
Changes in other regulatory assets		73,920	78,809
Changes in pensions and other postretirement liabilities		(63,735)	(52,046)
Other Noncash Income (Expense)		(69,980)	(63,629)
Net cash flow provided by operating activities		877,945	823,894
INVESTING ACTIVITIES
Construction/capital expenditures		(675,248)	(568,812)
Allowance for equity funds used during construction		18,479	15,194
Payments to Acquire Property, Plant, and Equipment		(474,670)	0
Change in money pool receivable - net		(3,274)	(2,919)
Nuclear fuel purchases		(49,219)	(216,721)
Payments for Nuclear Fuel		(49,219)	(216,721)
Proceeds from sale of nuclear fuel		64,498	54,595
Payments to storm reserve escrow account		0	(206)
Decrease (increase) in other investments		(823)	0
Proceeds from Sale of Productive Assets		0	58,417
Proceeds from nuclear decommissioning trust fund sales		178,183	93,580
Investment in nuclear decommissioning trust funds		(206,976)	(118,341)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		17,274	0
Changes in securitization account		(6,649)	(6,837)
Net cash flow used in investing activities		(1,138,425)	(692,050)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		1,389,315	0
Payments for Repurchase of Redeemable Preferred Stock		0	10,284
Retirement of long-term debt		(831,632)	(28,819)
Payments for Repurchase of Preferred Stock and Related Expense		0	100,002
Changes in credit borrowings and commercial paper - net		(18,385)	72,020
Dividends paid:
Common stock		(215,000)	(100,000)
Preferred stock		0	(6,082)
Other		(3,841)	(15,475)
Net cash flow provided by (used in) financing activities		320,457	(188,642)
Net decrease in cash and cash equivalents		59,977	(56,798)
Cash and cash equivalents at beginning of period		35,102	320,516
Cash and cash equivalents at end of period		95,079	263,718
Cash paid / (received) during the period for:
Interest - net of amount capitalized		251,196	186,865
Income taxes		62,676	89,123
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		95,924	87,790
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		101,746	95,888
Deferred income taxes, investment tax credits, and non-current taxes accrued		43,201	(9,178)
Changes in working capital:
Receivables		(39,253)	4,628
Fuel inventory		412	(6,627)
Accounts payable		25,200	(14,918)
Taxes accrued		(765)	52,202
Interest accrued		(2,349)	(5,241)
Deferred fuel costs		(79,671)	81,084
Other working capital accounts		(1,910)	(6,528)
Changes in provisions for estimated losses		5,221	(1,670)
Changes in other regulatory assets		18,851	46,016
Changes in pensions and other postretirement liabilities		(18,871)	(22,345)
Other Noncash Income (Expense)		(5,776)	5,154
Net cash flow provided by operating activities		141,960	306,255
INVESTING ACTIVITIES
Construction/capital expenditures		(223,643)	(146,410)
Allowance for equity funds used during construction		4,072	2,094
Change in money pool receivable - net		(24,986)	(3,616)
Proceeds from insurance		0	12,932
Other		(257)	36
Net cash flow used in investing activities		(244,814)	(134,964)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		624,034	0
Retirement of long-term debt		(332,400)	0
Dividends paid:
Common stock		(24,000)	(36,250)
Preferred stock		(2,121)	(2,121)
Other		0	(90)
Net cash flow provided by (used in) financing activities		265,513	(38,461)
Net decrease in cash and cash equivalents		162,659	132,830
Cash and cash equivalents at beginning of period		145,605	61,633
Cash and cash equivalents at end of period		308,264	194,463
Cash paid / (received) during the period for:
Interest - net of amount capitalized		44,209	46,449
Income taxes		3,878	2,597
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		46,712	41,351
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		38,719	32,529
Deferred income taxes, investment tax credits, and non-current taxes accrued		132,201	14,620
Changes in working capital:
Receivables		(17,409)	(10,830)
Fuel inventory		(215)	1,295
Accounts payable		7,088	8,585
Taxes accrued		(87,763)	13,604
Interest accrued		1,172	(287)
Deferred fuel costs		(16,671)	4,829
Other working capital accounts		735	(5,362)
Changes in provisions for estimated losses		678	64,479
Changes in other regulatory assets		6,837	(83,437)
Changes in pensions and other postretirement liabilities		(13,673)	(13,999)
Other Noncash Income (Expense)		(5,588)	16,077
Net cash flow provided by operating activities		92,823	83,454
INVESTING ACTIVITIES
Construction/capital expenditures		(63,161)	(64,280)
Allowance for equity funds used during construction		767	1,022
Payments to Acquire Property, Plant, and Equipment		(237,335)	0
Payments to Acquire Businesses and Interest in Affiliates		(38)	0
Change in money pool receivable - net		9,622	(10)
Payments to storm reserve escrow account		(300)	(68,793)
Receipts from storm reserve escrow account		3	6
Changes in securitization account		(502)	(1,434)
Net cash flow used in investing activities		(290,944)	(133,489)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		190,697	95,436
Proceeds from Contributions from Parent		47,750	0
Repayment of long-term payable due to Entergy Louisiana		0	(58,417)
Retirement of long-term debt		(77,094)	0
Dividends paid:
Common stock		(14,000)	(7,250)
Preferred stock		(724)	(724)
Other		505	(126)
Net cash flow provided by (used in) financing activities		147,134	28,919
Net decrease in cash and cash equivalents		(50,987)	(21,116)
Cash and cash equivalents at beginning of period		88,876	42,389
Cash and cash equivalents at end of period		37,889	21,273
Cash paid / (received) during the period for:
Interest - net of amount capitalized		13,613	9,710
Income taxes		8,500	40
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		94,753	74,795
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		79,526	76,356
Deferred income taxes, investment tax credits, and non-current taxes accrued		(7,605)	(50,401)
Changes in working capital:
Receivables		(40,678)	(22,160)
Fuel inventory		268	(3,098)
Accounts payable		(74)	(7,401)
Taxes accrued		55,121	86,361
Interest accrued		(9,453)	(7,172)
Deferred fuel costs		(6,472)	(6,524)
Other working capital accounts		(9,786)	(4,656)
Changes in provisions for estimated losses		(3,318)	(3,878)
Changes in other regulatory assets		69,324	87,314
Changes in pensions and other postretirement liabilities		(21,092)	(22,396)
Other Noncash Income (Expense)		(3,816)	(11,415)
Net cash flow provided by operating activities		196,698	185,725
INVESTING ACTIVITIES
Construction/capital expenditures		(264,394)	(210,595)
Allowance for equity funds used during construction		6,266	3,961
Change in money pool receivable - net		0	224
Changes in securitization account		6,762	3,946
Net cash flow used in investing activities		(251,366)	(202,464)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		123,502	246,617
Retirement of long-term debt		(55,764)	(253,645)
Change in money pool payable - net		(9,669)	0
Dividends paid:
Other		(4,240)	(1,494)
Net cash flow provided by (used in) financing activities		53,829	(8,522)
Net decrease in cash and cash equivalents		(839)	(25,261)
Cash and cash equivalents at beginning of period		2,182	30,441
Cash and cash equivalents at end of period		1,343	5,180
Cash paid / (received) during the period for:
Interest - net of amount capitalized		73,570	69,005
Income taxes		$ 3,443	$ 3,162

[1] (a) Consolidated net income and preferred dividend requirements of subsidiaries for 2016 and 2015 include $15.6 million and $9.6 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented within equity.