Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Proceeds from Sale of Productive Assets	$ 19,801	$ 9,163
OPERATING ACTIVITIES
Consolidated net income	499,180	385,059
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	1,068,807	1,027,609
Deferred income taxes, investment tax credits, and non-current taxes accrued	225,749	88,732
Impairment of Long-Lived Assets Held-for-use	26,684	51,503
Changes in working capital:
Receivables	(127,259)	(45,515)
Fuel inventory	(13,346)	8,512
Accounts payable	(18,832)	97,464
Taxes accrued	(38,186)	(8,092)
Interest accrued	(144)	(2,056)
Deferred fuel costs	31,796	(132,263)
Other working capital accounts	(51,782)	(134,982)
Changes in provisions for estimated losses	4,719	27,443
Changes in other regulatory assets	(135,936)	106,712
Increase (Decrease) in Regulatory Liabilities	107,882	(247,239)
Changes in pensions and other postretirement liabilities	(66,033)	(181,278)
Other Noncash Income (Expense)	(460,209)	38,314
Net cash flow provided by operating activities	1,053,090	1,079,923
INVESTING ACTIVITIES
Construction/capital expenditures	(2,095,520)	(1,885,419)
Allowance for equity funds used during construction	75,607	60,335
Nuclear fuel purchases	(54,523)	(90,321)
Payments for Nuclear Fuel	(54,523)	(90,321)
Payments to storm reserve escrow account	(4,623)	(2,744)
Decrease (increase) in other investments	51,073	(10,769)
Proceeds from nuclear decommissioning trust fund sales	2,487,915	1,801,170
Investment in nuclear decommissioning trust funds	(2,523,805)	(1,826,384)
Proceeds from insurance	7,040	10,523
Changes in securitization account	12,034	4,754
Net cash flow used in investing activities	(2,025,001)	(1,929,692)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	5,391,547	3,359,193
Common stock and treasury stock	57,797	3,691
Proceeds from Issuance of Common Stock	607,650	0
Retirement of long-term debt	(4,214,495)	(2,569,131)
Changes in credit borrowings and commercial paper - net	(306,877)	405,795
Payments for Repurchase of Preferred Stock and Preference Stock	50,000	0
Dividends paid:
Common stock	(345,452)	(321,821)
Preferred stock	(8,219)	(6,878)
Other	(5,106)	10,434
Net cash flow provided by financing activities	1,126,845	881,283
Net increase in cash and cash equivalents	154,934	31,514
Cash and cash equivalents at beginning of period	480,975	781,273
Cash and cash equivalents at end of period	635,909	812,787
Cash paid / (received) during the period for:
Interest - net of amount capitalized	388,566	362,629
Income taxes	(6,967)	14,145
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	89,420	118,811
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	231,968	221,935
Deferred income taxes, investment tax credits, and non-current taxes accrued	45,680	(32,906)
Changes in working capital:
Receivables	4,920	(6,091)
Fuel inventory	(4,707)	12,289
Accounts payable	(14,280)	(25,035)
Taxes accrued	(19,961)	66,500
Interest accrued	4,155	1,260
Deferred fuel costs	56,182	(5,896)
Other working capital accounts	23,275	(8,750)
Changes in provisions for estimated losses	11,619	12,453
Changes in other regulatory assets	(57,516)	8,587
Increase (Decrease) in Regulatory Liabilities	70,958	(111,600)
Changes in pensions and other postretirement liabilities	(12,487)	(37,601)
Other Noncash Income (Expense)	(75,672)	12,639
Net cash flow provided by operating activities	353,554	226,595
INVESTING ACTIVITIES
Construction/capital expenditures	(309,696)	(350,429)
Allowance for equity funds used during construction	6,964	8,732
Change in money pool receivable - net	(25,166)	(57,708)
Nuclear fuel purchases	(6,691)	(23,342)
Payments for Nuclear Fuel	(6,691)	(23,342)
Proceeds from sale of nuclear fuel	22,834	30,907
Proceeds from nuclear decommissioning trust fund sales	83,407	121,440
Investment in nuclear decommissioning trust funds	(93,516)	(128,598)
Proceeds from insurance	0	7,043
Changes in securitization account	834	(279)
Net cash flow used in investing activities	(321,030)	(392,234)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	659,913	464,544
Retirement of long-term debt	(361,823)	(206,843)
Change in money pool payable - net	(182,738)	(166,137)
Changes in credit borrowings and commercial paper - net	0	(49,974)
Dividends paid:
Common stock	(115,000)	0
Preferred stock	0	(714)
Other	(1,052)	1,615
Net cash flow provided by financing activities	(700)	392,491
Net increase in cash and cash equivalents	31,824	226,852
Cash and cash equivalents at beginning of period	119	6,216
Cash and cash equivalents at end of period	31,943	233,068
Cash paid / (received) during the period for:
Interest - net of amount capitalized	62,486	56,900
Proceeds from Contributions from Parent	0	350,000
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	310,717	295,952
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	316,343	323,188
Deferred income taxes, investment tax credits, and non-current taxes accrued	99,015	119,378
Changes in working capital:
Receivables	(75,330)	(23,815)
Fuel inventory	(1,651)	(2,581)
Accounts payable	(25,686)	17,324
Taxes accrued	46,654	(56,076)
Interest accrued	1,918	790
Deferred fuel costs	(40,096)	(68,741)
Other working capital accounts	(64,715)	(6,053)
Changes in provisions for estimated losses	1,612	5,803
Changes in other regulatory assets	(88,911)	42,203
Increase (Decrease) in Regulatory Liabilities	26,565	(8,811)
Changes in pensions and other postretirement liabilities	(7,513)	(32,970)
Other Noncash Income (Expense)	(25,702)	(22,399)
Net cash flow provided by operating activities	473,220	583,192
INVESTING ACTIVITIES
Construction/capital expenditures	(900,264)	(880,785)
Allowance for equity funds used during construction	44,585	36,869
Change in money pool receivable - net	9,633	4,394
Nuclear fuel purchases	(63,026)	(14,740)
Payments for Nuclear Fuel	(63,026)	(14,740)
Proceeds from sale of nuclear fuel	0	36,301
Payments to storm reserve escrow account	(3,382)	(1,984)
Proceeds from nuclear decommissioning trust fund sales	195,433	169,407
Investment in nuclear decommissioning trust funds	(211,083)	(189,721)
Proceeds from insurance	7,040	3,480
Changes in securitization account	406	(1,423)
Net cash flow used in investing activities	(920,658)	(838,202)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	1,883,990	1,088,941
Retirement of long-term debt	(1,332,807)	(744,222)
Changes in credit borrowings and commercial paper - net	0	(43,540)
Dividends paid:
Common stock	(102,000)	(56,000)
Other	(370)	2,952
Net cash flow provided by financing activities	448,813	248,131
Net increase in cash and cash equivalents	1,375	(6,879)
Cash and cash equivalents at beginning of period	43,364	35,907
Cash and cash equivalents at end of period	44,739	29,028
Cash paid / (received) during the period for:
Interest - net of amount capitalized	146,256	138,625
Income taxes	0	(2,973)
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	42,065	61,085
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	78,806	76,541
Deferred income taxes, investment tax credits, and non-current taxes accrued	19,924	29,577
Changes in working capital:
Receivables	(6,288)	(32,365)
Fuel inventory	(4,265)	(977)
Accounts payable	4,545	29,476
Taxes accrued	(46,815)	(45,736)
Interest accrued	2,022	(3,792)
Deferred fuel costs	26,126	6,532
Other working capital accounts	1,850	(9,698)
Changes in provisions for estimated losses	(6,274)	7,242
Changes in other regulatory assets	(13,248)	(666)
Increase (Decrease) in Regulatory Liabilities	(17,754)	(127,047)
Changes in pensions and other postretirement liabilities	(3,323)	(9,336)
Other Noncash Income (Expense)	(6,402)	125,982
Net cash flow provided by operating activities	70,969	106,818
INVESTING ACTIVITIES
Construction/capital expenditures	(210,263)	(187,219)
Allowance for equity funds used during construction	4,262	4,100
Change in money pool receivable - net	(65,380)	1,633
Decrease (increase) in other investments	(310)	(863)
Net cash flow used in investing activities	(271,691)	(182,349)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	293,051	0
Change in money pool payable - net	0	63,394
Dividends paid:
Preferred stock	0	(477)
Other	(4,835)	6,536
Net cash flow provided by financing activities	288,216	69,453
Net increase in cash and cash equivalents	87,494	(6,078)
Cash and cash equivalents at beginning of period	36,954	6,096
Cash and cash equivalents at end of period	124,448	18
Cash paid / (received) during the period for:
Interest - net of amount capitalized	26,563	30,490
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income	22,026	29,151
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	28,390	27,697
Deferred income taxes, investment tax credits, and non-current taxes accrued	15,053	22,813
Changes in working capital:
Receivables	(9,614)	(10,930)
Fuel inventory	(336)	1,833
Accounts payable	(3,412)	5,073
Taxes accrued	(6,189)	(10,602)
Interest accrued	(289)	(459)
Deferred fuel costs	2,028	(27,056)
Other working capital accounts	(13,204)	(9,524)
Changes in provisions for estimated losses	399	438
Changes in other regulatory assets	(16,470)	11,957
Increase (Decrease) in Regulatory Liabilities	(8,574)	3,042
Changes in pensions and other postretirement liabilities	(3,627)	(7,725)
Other Noncash Income (Expense)	23,184	(1,769)
Net cash flow provided by operating activities	29,365	33,939
INVESTING ACTIVITIES
Construction/capital expenditures	(105,545)	(85,324)
Allowance for equity funds used during construction	4,976	2,068
Change in money pool receivable - net	22,016	12,723
Payments to storm reserve escrow account	(931)	(544)
Receipts from storm reserve escrow account	0	3
Changes in securitization account	768	(11)
Net cash flow used in investing activities	(78,716)	(71,085)
Proceeds from the issuance of:
Retirement of long-term debt	(5,420)	(5,342)
Change in money pool payable - net	36,303	23,080
Dividends paid:
Common stock	0	(14,500)
Other	(910)	1,193
Net cash flow provided by financing activities	29,973	4,431
Net increase in cash and cash equivalents	(19,378)	(32,715)
Cash and cash equivalents at beginning of period	19,677	32,741
Cash and cash equivalents at end of period	299	26
Cash paid / (received) during the period for:
Interest - net of amount capitalized	11,726	10,483
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	60,278	48,139
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	74,349	61,907
Deferred income taxes, investment tax credits, and non-current taxes accrued	8,895	(19,785)
Changes in working capital:
Receivables	25,236	(25,987)
Fuel inventory	(589)	(1,710)
Accounts payable	(15,596)	906
Taxes accrued	(9,091)	20,439
Interest accrued	(7,787)	(678)
Deferred fuel costs	(12,445)	(37,103)
Other working capital accounts	1,998	9,614
Changes in provisions for estimated losses	(3,294)	434
Changes in other regulatory assets	28,742	39,592
Increase (Decrease) in Regulatory Liabilities	(50,817)	10,072
Changes in pensions and other postretirement liabilities	(3,899)	(13,330)
Other Noncash Income (Expense)	10,897	(2,031)
Net cash flow provided by operating activities	106,877	90,479
INVESTING ACTIVITIES
Construction/capital expenditures	(424,229)	(169,856)
Allowance for equity funds used during construction	11,551	3,562
Change in money pool receivable - net	0	34,902
Changes in securitization account	10,027	6,467
Net cash flow used in investing activities	(402,651)	(124,925)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	691,808	0
Retirement of long-term debt	(541,442)	(39,722)
Change in money pool payable - net	146,275	0
Dividends paid:
Other	924	(946)
Net cash flow provided by financing activities	297,565	(40,668)
Net increase in cash and cash equivalents	1,791	(75,114)
Cash and cash equivalents at beginning of period	56	115,513
Cash and cash equivalents at end of period	1,847	40,399
Cash paid / (received) during the period for:
Interest - net of amount capitalized	49,229	43,188
Income taxes	2,292	(624)
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	48,050	45,695
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	106,972	109,682
Deferred income taxes, investment tax credits, and non-current taxes accrued	4,799	7,010
Changes in working capital:
Receivables	(15,402)	14,093
Accounts payable	(6,770)	32,681
Taxes accrued	(3,196)	(7,100)
Interest accrued	(1,275)	785
Other working capital accounts	1,205	(64,758)
Changes in other regulatory assets	(7,238)	(16,939)
Increase (Decrease) in Regulatory Liabilities	87,502	(12,894)
Changes in pensions and other postretirement liabilities	(2,121)	(6,551)
Other Noncash Income (Expense)	(82,150)	21,056
Net cash flow provided by operating activities	130,376	122,760
INVESTING ACTIVITIES
Construction/capital expenditures	(58,714)	(105,035)
Allowance for equity funds used during construction	3,267	5,004
Change in money pool receivable - net	35,588	47,531
Nuclear fuel purchases	(1,964)	(99,164)
Payments for Nuclear Fuel	(1,964)	(99,164)
Proceeds from sale of nuclear fuel	18,280	0
Proceeds from nuclear decommissioning trust fund sales	190,975	199,403
Investment in nuclear decommissioning trust funds	(200,909)	(206,695)
Net cash flow used in investing activities	(13,477)	(158,956)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	847,380	99,985
Retirement of long-term debt	(888,003)	(50,002)
Changes in credit borrowings and commercial paper - net	0	21,043
Dividends paid:
Common stock	(88,000)	(63,240)
Net cash flow provided by financing activities	(128,623)	7,786
Net increase in cash and cash equivalents	(11,724)	(28,410)
Cash and cash equivalents at beginning of period	95,685	287,187
Cash and cash equivalents at end of period	83,961	258,777
Cash paid / (received) during the period for:
Interest - net of amount capitalized	$ 12,462	$ 8,592