Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
OPERATING ACTIVITIES
Consolidated net income (loss)	[1]	$ (261,583)	$ 835,250
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		1,612,690	1,585,547
Deferred income taxes, investment tax credits, and non-current taxes accrued		(267,984)	480,382
Impairment of Long-Lived Assets Held-for-use		1,642,204	106,915
Changes in working capital:
Receivables		(222,311)	(119,108)
Fuel inventory		(7,578)	29,863
Accounts payable		(90,309)	(40,167)
Taxes accrued		108,229	19,745
Interest accrued		(34,368)	(3,931)
Deferred fuel costs		165,384	(124,475)
Other working capital accounts		(133,142)	(4,095)
Changes in provisions for estimated losses		55,177	287,513
Changes in other regulatory assets		155,244	147,055
Changes in other regulatory liabilities		(95,327)	41,594
Changes in pensions and other postretirement liabilities		(307,638)	(291,454)
Other		30,957	(59,145)
Net cash flow provided by operating activities		2,349,645	2,891,489
INVESTING ACTIVITIES
Construction/capital expenditures		(1,701,758)	(1,506,611)
Allowance for equity funds used during construction		39,428	49,137
Nuclear fuel purchases		(340,262)	(353,472)
Proceeds from sale of assets and businesses		0	10,100
NYPA value sharing payment		(70,790)	(72,000)
Payments to storm reserve escrow account		(68,956)	(274,170)
Decrease (increase) in other investments		(15,323)	37,090
Proceeds from nuclear decommissioning trust fund sales		1,487,759	1,446,817
Investment in nuclear decommissioning trust funds		(1,520,461)	(1,533,774)
Proceeds from insurance		12,745	33,350
Changes in securitization account		(8,756)	(4,908)
Net cash flow used in investing activities		(2,186,374)	(2,168,441)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		2,205,884	1,667,616
Common stock and treasury stock		24,218	88,068
Retirement of long-term debt		(2,295,118)	(1,535,695)
Payments for Repurchase of Common Stock		(99,807)	(18,259)
Payments for Repurchase of Preferred Stock and Preference Stock		94,285	0
Changes in credit borrowings and commercial paper - net		183,627	(155,437)
Dividends paid:
Common stock		(447,268)	(446,308)
Preferred stock		(14,848)	(14,632)
Other		(7,102)	20,982
Net cash flow used in financing activities		(544,699)	(393,665)
Net increase (decrease) in cash and cash equivalents		(381,428)	329,383
Cash and cash equivalents at beginning of period		1,422,026	739,126
Cash and cash equivalents at end of period		1,040,598	1,068,509
Cash paid / (received) during the period for:
Interest - net of amount capitalized		523,489	476,100
Income taxes		95,779	47,860
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		95,052	120,355
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		303,653	285,824
Deferred income taxes, investment tax credits, and non-current taxes accrued		4,483	119,305
Changes in working capital:
Receivables		(74,495)	(19,754)
Fuel inventory		140	13,014
Accounts payable		16,193	(102,234)
Taxes accrued		34,588	(40,576)
Interest accrued		4,196	(1,029)
Deferred fuel costs		106,499	(155,571)
Other working capital accounts		(26,988)	61,711
Changes in provisions for estimated losses		497	(911)
Changes in other regulatory assets		35,483	(8,307)
Changes in pensions and other postretirement liabilities		(97,650)	(84,298)
Other		6,551	11,906
Net cash flow provided by operating activities		408,202	199,435
INVESTING ACTIVITIES
Construction/capital expenditures		(428,491)	(397,055)
Allowance for equity funds used during construction		11,394	7,701
Change in money pool receivable - net		(217)	17,531
Nuclear fuel purchases		(119,285)	(123,358)
Proceeds from sale of nuclear fuel		52,281	75,860
Proceeds from nuclear decommissioning trust fund sales		190,759	155,403
Investment in nuclear decommissioning trust funds		(197,787)	(162,916)
Proceeds from insurance		0	29,280
Changes in securitization account		(4,431)	(4,480)
Other		0	200
Net cash flow used in investing activities		(495,777)	(401,834)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		0	461,553
Retirement of long-term debt		(6,521)	(441,318)
Change in money pool payable - net		0	63,677
Changes in credit borrowings and commercial paper - net		(10,728)	8,036
Dividends paid:
Preferred stock		(5,155)	(5,155)
Other		10,834	411
Net cash flow used in financing activities		(11,570)	87,204
Net increase (decrease) in cash and cash equivalents		(99,145)	(115,195)
Cash and cash equivalents at beginning of period		218,505	127,022
Cash and cash equivalents at end of period		119,360	11,827
Cash paid / (received) during the period for:
Interest - net of amount capitalized		70,902	66,838
Income taxes		17,592	1,714
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		266,282	251,866
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		285,538	260,344
Deferred income taxes, investment tax credits, and non-current taxes accrued		161,891	138,892
Changes in working capital:
Receivables		(93,799)	(40,314)
Fuel inventory		6,138	1,692
Accounts payable		(9,664)	(19,141)
Taxes accrued		93,318	(7,710)
Interest accrued		(3,647)	(3,234)
Deferred fuel costs		(26,350)	18,544
Other working capital accounts		(3,778)	(23,103)
Changes in provisions for estimated losses		(3,735)	205,017
Changes in other regulatory assets		51,364	(14,086)
Changes in other regulatory liabilities		(29,120)	3,743
Changes in pensions and other postretirement liabilities		(34,609)	(36,832)
Other		(22,659)	(16,861)
Net cash flow provided by operating activities		637,170	718,817
INVESTING ACTIVITIES
Construction/capital expenditures		(314,752)	(356,407)
Allowance for equity funds used during construction		9,625	28,159
Change in money pool receivable - net		(3,603)	17,648
Nuclear fuel purchases		(101,782)	(117,694)
Proceeds from sale of nuclear fuel		29,936	46,045
Proceeds from sale of assets and businesses		58,417	0
Payments to storm reserve escrow account		(140)	(200,021)
Payments to Acquire Interest in Subsidiaries and Affiliates		0	(227,273)
Proceeds from nuclear decommissioning trust fund sales		18,311	35,893
Investment in nuclear decommissioning trust funds		(27,913)	(43,580)
Changes in securitization account		(6,837)	(5,812)
Net cash flow used in investing activities		(338,738)	(823,042)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		0	395,977
Retirement of long-term debt		(28,819)	(250,694)
Payments for Repurchase of Preferred Stock and Related Expense		100,002	0
Payments for Repurchase of Preferred Stock and Preference Stock		(100,000)
Change in money pool payable - net		0	7,746
Changes in credit borrowings and commercial paper - net		20,620	63,466
Dividends paid:
Common stock		(100,000)	(228,212)
Preferred stock		(5,463)	(5,213)
Other		(1,382)	50
Net cash flow used in financing activities		(215,046)	(16,880)
Net increase (decrease) in cash and cash equivalents		83,386	(121,105)
Cash and cash equivalents at beginning of period		157,553	124,007
Cash and cash equivalents at end of period		240,939	2,902
Cash paid / (received) during the period for:
Interest - net of amount capitalized		129,273	122,728
Income taxes		(86,892)	(495)
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		87,790	45,939
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		95,888	85,130
Deferred income taxes, investment tax credits, and non-current taxes accrued		(9,178)	(13,802)
Changes in working capital:
Receivables		4,628	(39,365)
Fuel inventory		(6,627)	6,039
Accounts payable		(14,918)	(17,736)
Taxes accrued		52,202	41,983
Interest accrued		(5,241)	46
Deferred fuel costs		81,084	(2,416)
Other working capital accounts		(6,528)	24,752
Changes in provisions for estimated losses		(1,670)	10,152
Changes in other regulatory assets		46,016	68,660
Changes in pensions and other postretirement liabilities		(22,345)	(23,551)
Other		5,154	1,492
Net cash flow provided by operating activities		306,255	187,323
INVESTING ACTIVITIES
Construction/capital expenditures		(146,410)	(124,944)
Allowance for equity funds used during construction		2,094	1,428
Change in money pool receivable - net		(3,616)	(5,376)
Proceeds from insurance		12,932	0
Other		36	(3)
Net cash flow used in investing activities		(134,964)	(128,895)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		0	98,933
Retirement of long-term debt		0	(95,000)
Change in money pool payable - net		0	(3,536)
Dividends paid:
Common stock		(36,250)	(25,000)
Preferred stock		(2,121)	(2,121)
Other		(90)	0
Net cash flow used in financing activities		(38,461)	(26,724)
Net increase (decrease) in cash and cash equivalents		132,830	31,704
Cash and cash equivalents at beginning of period		61,633	31
Cash and cash equivalents at end of period		194,463	31,735
Cash paid / (received) during the period for:
Interest - net of amount capitalized		46,449	40,834
Income taxes		2,597	(6,840)
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		41,351	30,672
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		32,529	33,930
Deferred income taxes, investment tax credits, and non-current taxes accrued		14,620	12,598
Changes in working capital:
Receivables		(10,830)	10,618
Fuel inventory		1,295	(75)
Accounts payable		8,585	(7,683)
Taxes accrued		13,604	1,094
Interest accrued		(287)	(959)
Deferred fuel costs		4,829	(4,411)
Other working capital accounts		(5,362)	(13,809)
Changes in provisions for estimated losses		64,479	8,164
Changes in other regulatory assets		(83,437)	46
Changes in pensions and other postretirement liabilities		(13,999)	(11,444)
Other		16,077	6,150
Net cash flow provided by operating activities		83,454	64,891
INVESTING ACTIVITIES
Construction/capital expenditures		(64,280)	(49,370)
Allowance for equity funds used during construction		1,022	1,321
Change in money pool receivable - net		(10)	(1,927)
Payments to storm reserve escrow account		(68,793)	(5,638)
Receipts from storm reserve escrow account		6	0
Changes in securitization account		(1,434)	0
Net cash flow used in investing activities		(133,489)	(55,614)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		95,436	0
Repayment of long-term payable due to Entergy Louisiana		(58,417)	0
Dividends paid:
Common stock		(7,250)	(3,000)
Preferred stock		(724)	(724)
Other		(126)	(377)
Net cash flow used in financing activities		28,919	(4,101)
Net increase (decrease) in cash and cash equivalents		(21,116)	5,176
Cash and cash equivalents at beginning of period		42,389	33,489
Cash and cash equivalents at end of period		21,273	38,665
Cash paid / (received) during the period for:
Interest - net of amount capitalized		9,710	12,477
Income taxes		40	4,871
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		74,795	71,309
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		76,356	74,398
Deferred income taxes, investment tax credits, and non-current taxes accrued		(50,401)	(46,976)
Changes in working capital:
Receivables		(22,160)	(14,671)
Fuel inventory		(3,098)	2,115
Accounts payable		(7,401)	(4,292)
Taxes accrued		86,361	84,155
Interest accrued		(7,172)	(9,744)
Deferred fuel costs		(6,524)	(10,807)
Other working capital accounts		(4,656)	(2,589)
Changes in provisions for estimated losses		(3,878)	(255)
Changes in other regulatory assets		87,314	70,811
Changes in pensions and other postretirement liabilities		(22,396)	(18,803)
Other		(11,415)	31,072
Net cash flow provided by operating activities		185,725	225,723
INVESTING ACTIVITIES
Construction/capital expenditures		(210,595)	(130,710)
Allowance for equity funds used during construction		3,961	2,193
Change in money pool receivable - net		224	(440)
Changes in securitization account		3,946	5,384
Net cash flow used in investing activities		(202,464)	(123,573)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		246,617	131,170
Retirement of long-term debt		(253,645)	(202,055)
Dividends paid:
Common stock		0	(40,000)
Other		(1,494)	2,305
Net cash flow used in financing activities		(8,522)	(108,580)
Net increase (decrease) in cash and cash equivalents		(25,261)	(6,430)
Cash and cash equivalents at beginning of period		30,441	46,488
Cash and cash equivalents at end of period		5,180	40,058
Cash paid / (received) during the period for:
Interest - net of amount capitalized		69,005	73,816
Income taxes		3,162	2,780
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income (loss)		72,616	77,280
Adjustments to reconcile consolidated net income (loss) to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		203,761	187,357
Deferred income taxes, investment tax credits, and non-current taxes accrued		181,430	56,268
Changes in working capital:
Receivables		7,800	23,355
Accounts payable		(3,480)	(9,193)
Taxes accrued		(159,911)	(6,724)
Interest accrued		(17,522)	20,266
Other working capital accounts		(2,710)	(20,848)
Changes in other regulatory assets		(4,145)	2,802
Changes in pensions and other postretirement liabilities		(17,759)	(14,384)
Other		(20,239)	(20,065)
Net cash flow provided by operating activities		239,841	296,114
INVESTING ACTIVITIES
Construction/capital expenditures		(48,756)	(50,379)
Allowance for equity funds used during construction		5,945	3,499
Change in money pool receivable - net		(1,003)	(14,545)
Nuclear fuel purchases		(51,645)	(163,492)
Proceeds from sale of nuclear fuel		57,681	43,992
Proceeds from nuclear decommissioning trust fund sales		325,367	333,046
Investment in nuclear decommissioning trust funds		(348,606)	(356,643)
Net cash flow used in investing activities		(61,017)	(204,522)
Proceeds from the issuance of:
Retirement of long-term debt		(111,310)	(46,743)
Changes in credit borrowings and commercial paper - net		(5,836)	40,846
Dividends paid:
Common stock		(130,750)	(77,977)
Other		(28)	(29)
Net cash flow used in financing activities		(247,924)	(83,903)
Net increase (decrease) in cash and cash equivalents		(69,100)	7,689
Cash and cash equivalents at beginning of period		223,179	127,142
Cash and cash equivalents at end of period		154,079	134,831
Cash paid / (received) during the period for:
Interest - net of amount capitalized		47,664	16,364
Income taxes		$ 25,304	$ 5,564

[1] Consolidated net income and preferred dividend requirements of subsidiaries for 2015 and 2014 include $9.6 million and $9.7 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented within equity.