Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
OPERATING ACTIVITIES
Consolidated net income	[1]	$ 901,064	$ 1,201,035
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		1,561,565	1,548,872
Deferred income taxes, investment tax credits, and non-current taxes accrued		(90,607)	119,603
Impairment of Long-Lived Assets Held-for-use		241,838	33,170
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property		(16,270)	0
Changes in working capital:
Receivables		(198,029)	(270,847)
Fuel inventory		20,746	28,900
Accounts payable		(75,962)	99,933
Taxes accrued		66,895	29,429
Interest accrued		(6,111)	(13,487)
Deferred fuel costs		(117,636)	(159,592)
Other working capital accounts		(81,779)	(78,553)
Changes in provisions for estimated losses		(10,073)	2,760
Changes in other regulatory assets		117,430	164,716
Changes in other regulatory liabilities		22,124	110,999
Changes in pensions and other postretirement liabilities		(354,297)	(305,200)
Other Noncash Income (Expense)		(268,147)	(259,343)
Net cash flow provided by operating activities		1,712,751	2,252,395
INVESTING ACTIVITIES
Construction/capital expenditures		(2,622,104)	(2,003,427)
Allowance for equity funds used during construction		66,437	48,807
Payments to Acquire Property, Plant, and Equipment		0	(949,329)
Nuclear fuel purchases		(226,054)	(160,343)
Payments for Nuclear Fuel		(226,054)	(160,343)
Payments to storm reserve escrow account		(1,925)	(1,203)
Receipts from storm reserve escrow account		8,836	0
Decreases (increases) in other investments		(112,217)	12,374
Proceeds from Sale of Productive Assets		100,000	0
Proceeds from nuclear decommissioning trust fund sales		1,902,783	1,796,566
Investment in nuclear decommissioning trust funds		(1,988,634)	(1,844,514)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		25,493	122,488
Proceeds from insurance		26,157	0
Changes in securitization account		(6,494)	(3,911)
Net cash flow used in investing activities		(2,827,722)	(2,982,492)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		1,222,606	5,508,461
Common stock and treasury stock		15,121	33,120
Retirement of long-term debt		(1,222,915)	(4,229,599)
Changes in credit borrowings and commercial paper - net		937,677	(60,985)
Dividends paid:
Common stock		(468,396)	(455,993)
Preferred stock		(10,338)	(16,947)
Other		(337)	(6,204)
Net cash flow provided by financing activities		473,418	686,570
Net decrease in cash and cash equivalents		(641,553)	(43,527)
Cash and cash equivalents at beginning of period		1,187,844	1,350,961
Cash and cash equivalents at end of period		546,291	1,307,434
Cash paid / (received) during the period for:
Interest - net of amount capitalized		507,912	584,362
Income taxes		(11,883)	79,988
Payments for Repurchase of Preferred Stock and Preference Stock		0	85,283
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income		145,492	163,333
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		311,725	319,845
Deferred income taxes, investment tax credits, and non-current taxes accrued		78,390	163,202
Changes in working capital:
Receivables		(45,180)	(116,584)
Fuel inventory		10,089	28,968
Accounts payable		(78,396)	95,116
Taxes accrued		15,367	(78,879)
Interest accrued		12,436	5,909
Deferred fuel costs		(53,664)	(50,687)
Other working capital accounts		(6,762)	4,259
Changes in provisions for estimated losses		10,094	130
Changes in other regulatory assets		(4,680)	(5,680)
Changes in pensions and other postretirement liabilities		(73,107)	(77,823)
Other Noncash Income (Expense)		45,747	22,691
Net cash flow provided by operating activities		367,551	473,800
INVESTING ACTIVITIES
Construction/capital expenditures		(558,985)	(494,071)
Allowance for equity funds used during construction		14,521	13,134
Payments to Acquire Property, Plant, and Equipment		0	(237,324)
Nuclear fuel purchases		(95,289)	(80,716)
Payments for Nuclear Fuel		(95,289)	(80,716)
Proceeds from sale of nuclear fuel		51,029	40,336
Decreases (increases) in other investments		0	(102)
Proceeds from nuclear decommissioning trust fund sales		219,223	165,038
Investment in nuclear decommissioning trust funds		(228,740)	(176,981)
Change in other investments		(65,981)	0
Changes in securitization account		(3,619)	(3,524)
Net cash flow used in investing activities		(667,841)	(774,210)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		222,717	777,671
Proceeds from Contributions from Parent		0	200,000
Payments for Repurchase of Redeemable Preferred Stock		0	85,283
Retirement of long-term debt		(6,803)	(621,608)
Change in money pool payable - net		43,882	(3,669)
Changes in credit borrowings and commercial paper - net		23,257	35,717
Dividends paid:
Preferred stock		(1,071)	(6,274)
Other		(1,737)	(1,868)
Net cash flow provided by financing activities		280,245	294,686
Net decrease in cash and cash equivalents		(20,045)	(5,724)
Cash and cash equivalents at beginning of period		20,509	9,135
Cash and cash equivalents at end of period		464	3,411
Cash paid / (received) during the period for:
Interest - net of amount capitalized		70,321	78,500
Income taxes		0	7,242
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income		405,141	554,437
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		458,963	462,007
Deferred income taxes, investment tax credits, and non-current taxes accrued		303,397	155,996
Changes in working capital:
Receivables		(92,610)	(159,517)
Fuel inventory		7,643	(1,578)
Accounts payable		31,865	(18,420)
Taxes accrued		97,138	(55,780)
Interest accrued		9,149	7,531
Deferred fuel costs		(37,753)	(6,091)
Other working capital accounts		(49,266)	(2,503)
Changes in provisions for estimated losses		(6,331)	1,658
Changes in other regulatory assets		60,014	73,920
Changes in other regulatory liabilities		(72,060)	30,847
Changes in pensions and other postretirement liabilities		(70,489)	(63,735)
Other Noncash Income (Expense)		(117,625)	(100,827)
Net cash flow provided by operating activities		927,176	877,945
INVESTING ACTIVITIES
Construction/capital expenditures		(1,177,121)	(675,248)
Allowance for equity funds used during construction		34,492	18,479
Payments to Acquire Property, Plant, and Equipment		0	(474,670)
Change in money pool receivable - net		(50,396)	(3,274)
Nuclear fuel purchases		(159,637)	(49,219)
Payments for Nuclear Fuel		(159,637)	(49,219)
Proceeds from sale of nuclear fuel		28,884	64,498
Payments to storm reserve escrow account		(1,422)	(823)
Receipts from storm reserve escrow account		8,836	0
Decreases (increases) in other investments		(33,324)	0
Proceeds from nuclear decommissioning trust fund sales		176,056	178,183
Investment in nuclear decommissioning trust funds		(204,500)	(206,976)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		0	17,274
Proceeds from insurance		5,305	0
Changes in securitization account		(6,538)	(6,649)
Net cash flow used in investing activities		(1,379,365)	(1,138,425)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		646,850	1,389,315
Retirement of long-term debt		(296,359)	(831,632)
Changes in credit borrowings and commercial paper - net		36,762	(18,385)
Dividends paid:
Common stock		(91,250)	(215,000)
Other		(2,141)	(3,841)
Net cash flow provided by financing activities		293,862	320,457
Net decrease in cash and cash equivalents		(158,327)	59,977
Cash and cash equivalents at beginning of period		213,850	35,102
Cash and cash equivalents at end of period		55,523	95,079
Cash paid / (received) during the period for:
Interest - net of amount capitalized		189,896	251,196
Income taxes		(116,937)	62,676
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income		92,006	95,924
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		106,935	101,746
Deferred income taxes, investment tax credits, and non-current taxes accrued		65,204	43,201
Changes in working capital:
Receivables		(31,085)	(39,253)
Fuel inventory		8,059	412
Accounts payable		(2,644)	25,200
Taxes accrued		(5,815)	(765)
Interest accrued		(2,366)	(2,349)
Deferred fuel costs		(27,344)	(79,671)
Other working capital accounts		(279)	(1,910)
Changes in provisions for estimated losses		(10,274)	5,221
Changes in other regulatory assets		(33,323)	18,851
Changes in pensions and other postretirement liabilities		(18,863)	(18,871)
Other Noncash Income (Expense)		(10,897)	(5,776)
Net cash flow provided by operating activities		129,314	141,960
INVESTING ACTIVITIES
Construction/capital expenditures		(313,910)	(223,643)
Allowance for equity funds used during construction		6,741	4,072
Change in money pool receivable - net		10,595	(24,986)
Change in other investments		(3,185)	0
Other		(1,207)	(257)
Net cash flow used in investing activities		(300,966)	(244,814)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		0	624,034
Retirement of long-term debt		0	(332,400)
Change in money pool payable - net		106,180	0
Dividends paid:
Common stock		(10,500)	(24,000)
Preferred stock		(715)	(2,121)
Other		(98)	0
Net cash flow provided by financing activities		94,867	265,513
Net decrease in cash and cash equivalents		(76,785)	162,659
Cash and cash equivalents at beginning of period		76,834	145,605
Cash and cash equivalents at end of period		49	308,264
Cash paid / (received) during the period for:
Interest - net of amount capitalized		38,549	44,209
Income taxes		(15,087)	3,878
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income		44,389	46,712
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		39,356	38,719
Deferred income taxes, investment tax credits, and non-current taxes accrued		30,834	132,201
Changes in working capital:
Receivables		(17,030)	(17,409)
Fuel inventory		(490)	(215)
Accounts payable		(4,950)	7,088
Taxes accrued		(4,484)	(87,763)
Interest accrued		546	1,172
Deferred fuel costs		4,258	(16,671)
Other working capital accounts		(6,750)	735
Changes in provisions for estimated losses		(1,702)	678
Changes in other regulatory assets		10,093	6,837
Changes in pensions and other postretirement liabilities		(13,793)	(13,673)
Other Noncash Income (Expense)		3,963	(5,588)
Net cash flow provided by operating activities		84,240	92,823
INVESTING ACTIVITIES
Construction/capital expenditures		(81,143)	(63,161)
Allowance for equity funds used during construction		1,656	767
Payments to Acquire Property, Plant, and Equipment		0	(237,335)
Payments to Acquire Businesses and Interest in Affiliates		0	(38)
Change in money pool receivable - net		(32,067)	9,622
Payments to storm reserve escrow account		(406)	(300)
Receipts from storm reserve escrow account		0	3
Change in other investments		(1,754)	0
Changes in securitization account		(2,990)	(502)
Net cash flow used in investing activities		(116,704)	(290,944)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		0	190,697
Proceeds from Contributions from Parent		0	47,750
Retirement of long-term debt		(5,114)	(77,094)
Dividends paid:
Common stock		(36,100)	(14,000)
Preferred stock		(724)	(724)
Other		216	505
Net cash flow provided by financing activities		(41,722)	147,134
Net decrease in cash and cash equivalents		(74,186)	(50,987)
Cash and cash equivalents at beginning of period		103,068	88,876
Cash and cash equivalents at end of period		28,882	37,889
Cash paid / (received) during the period for:
Interest - net of amount capitalized		14,668	13,613
Income taxes		0	8,500
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income		71,543	94,753
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		87,272	79,526
Deferred income taxes, investment tax credits, and non-current taxes accrued		36,252	(7,605)
Changes in working capital:
Receivables		(30,030)	(40,678)
Fuel inventory		(7,371)	268
Accounts payable		24,711	(74)
Taxes accrued		1,122	55,121
Interest accrued		(7,207)	(9,453)
Deferred fuel costs		(3,134)	(6,472)
Other working capital accounts		(8,455)	(9,786)
Changes in provisions for estimated losses		(1,460)	(3,318)
Changes in other regulatory assets		59,549	69,324
Changes in pensions and other postretirement liabilities		(22,978)	(21,092)
Other Noncash Income (Expense)		(6,860)	(3,816)
Net cash flow provided by operating activities		192,954	196,698
INVESTING ACTIVITIES
Construction/capital expenditures		(243,226)	(264,394)
Allowance for equity funds used during construction		4,879	6,266
Change in money pool receivable - net		681	0
Changes in securitization account		6,653	6,762
Other		2,431	0
Net cash flow used in investing activities		(228,582)	(251,366)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		0	123,502
Retirement of long-term debt		(58,076)	(55,764)
Change in money pool payable - net		89,312	(9,669)
Dividends paid:
Other		(287)	(4,240)
Net cash flow provided by financing activities		30,949	53,829
Net decrease in cash and cash equivalents		(4,679)	(839)
Cash and cash equivalents at beginning of period		6,181	2,182
Cash and cash equivalents at end of period		1,502	1,343
Cash paid / (received) during the period for:
Interest - net of amount capitalized		70,237	73,570
Income taxes		(1,446)	3,443
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income		60,280	73,418
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization		184,625	176,571
Deferred income taxes, investment tax credits, and non-current taxes accrued		44,017	73,829
Changes in working capital:
Receivables		21,147	9,084
Accounts payable		2,344	(2,217)
Taxes accrued		2,956	(30,063)
Interest accrued		401	406
Other working capital accounts		7,605	(22,051)
Changes in other regulatory assets		1,196	(12,392)
Changes in pensions and other postretirement liabilities		(14,665)	(15,789)
Other Noncash Income (Expense)		(30,421)	(16,037)
Net cash flow provided by operating activities		279,485	234,759
INVESTING ACTIVITIES
Construction/capital expenditures		(60,041)	(71,471)
Allowance for equity funds used during construction		4,148	6,089
Change in money pool receivable - net		(202,658)	8,415
Nuclear fuel purchases		(24,239)	(137,248)
Payments for Nuclear Fuel		(24,239)	(137,248)
Proceeds from sale of nuclear fuel		60,188	11,467
Proceeds from nuclear decommissioning trust fund sales		308,134	392,926
Investment in nuclear decommissioning trust funds		(336,069)	(419,255)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		0	15,806
Change in other investments		(9,061)	0
Net cash flow used in investing activities		(259,598)	(193,271)
Proceeds from the issuance of:
Retirement of long-term debt		(50,003)	(22,002)
Changes in credit borrowings and commercial paper - net		14,858	80,041
Dividends paid:
Common stock		(85,610)	(139,000)
Other		(28)	(26)
Net cash flow provided by financing activities		(120,783)	(80,987)
Net decrease in cash and cash equivalents		(100,896)	(39,499)
Cash and cash equivalents at beginning of period		245,863	230,661
Cash and cash equivalents at end of period		144,967	191,162
Cash paid / (received) during the period for:
Interest - net of amount capitalized		26,251	27,087
Income taxes		$ 0	$ 3,402

[1] (a) Consolidated net income and preferred dividend requirements of subsidiaries for 2017 and 2016 include $10.3 million and $15.6 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented within equity.