Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
OPERATING ACTIVITIES
Consolidated net income	$ 335,038	$ 223,844
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	948,950	832,662
Deferred income taxes, investment tax credits, and non-current taxes accrued	162,189	(122,657)
Asset impairment	0	355,524
Changes in working capital:
Receivables	(218,279)	(52,185)
Fuel inventory	6,190	(19,222)
Accounts payable	151,993	8,339
Prepaid taxes and taxes accrued	(58,176)	(12,446)
Interest accrued	(3,172)	(6,978)
Deferred fuel	(101,421)	5,909
Other working capital accounts	(133,575)	(108,441)
Changes in provisions for estimated losses	(250,343)	(19,267)
Changes in other regulatory assets	216,659	113,645
Changes in pension and other postretirement liabilities	24,955	(34,541)
Other	34,897	23,733
Net cash flow provided by operating activities	1,115,905	1,187,919
INVESTING ACTIVITIES
Construction/capital expenditures	(1,244,859)	(1,252,277)
Allowance for equity funds used during construction	30,977	54,417
Payments for Nuclear Fuel	(209,509)	(240,804)
Payment for purchase of plant	0	(645)
Proceeds from sale of assets and businesses	0	0
Changes in securitization account	9,118	12,876
NYPA value sharing payment	(71,736)	(72,000)
Payment to storm reserve escrow account	(3,855)	(2,987)
Receipts from storm reserve escrow account	260,230	17,884
Decrease (increase) in other investments	(28,895)	37,076
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	10,763	0
Proceeds from nuclear decommissioning trust fund sales	779,706	944,833
Investment in nuclear decommissioning trust funds	(837,114)	(998,579)
Net cash flow used in investing activities	(1,305,174)	(1,500,206)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	1,973,866	1,325,162
Preferred stock	0	51,000
Common stock and treasury stock	16,634	34,628
Retirement of long-term debt	(2,010,111)	(1,199,926)
Repurchase of common stock	0	0
Changes in credit borrowings - net	294,123	(4,615)
Dividends paid:
Common stock	(297,054)	(293,741)
Preferred stock	(10,137)	(11,165)
Net cash flow used in financing activities	(32,679)	(98,657)
Effect of exchange rates on cash and cash equivalents	751	(101)
Net increase (decrease) in cash and cash equivalents	(221,197)	(411,045)
Cash and cash equivalents at beginning of period	532,569	694,438
Cash and cash equivalents at end of period	311,372	283,393
Cash paid / (received) during the period for:
Interest - net of amount capitalized	261,277	253,617
Income taxes	88,665	42,450
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	55,202	59,629
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	170,650	178,020
Deferred income taxes, investment tax credits, and non-current taxes accrued	53,955	35,685
Changes in working capital:
Receivables	(59,410)	(40,737)
Fuel inventory	20,035	2,539
Accounts payable	(6,041)	(100,250)
Prepaid taxes and taxes accrued	(222,835)	(730)
Interest accrued	(359)	(2,090)
Deferred fuel	39,437	75,835
Other working capital accounts	(18,641)	27,362
Changes in provisions for estimated losses	4	245
Changes in other regulatory assets	8,883	38,729
Changes in pension and other postretirement liabilities	(10,210)	(22,427)
Other	(15,623)	(105,879)
Net cash flow provided by operating activities	15,047	145,931
INVESTING ACTIVITIES
Construction/capital expenditures	(233,856)	(183,154)
Allowance for equity funds used during construction	6,928	6,060
Payments for Nuclear Fuel	(42,231)	(41,104)
Proceeds from sale of nuclear fuel	36,478	49,879
Remittances to transition charge account	(6,594)	(7,459)
Payments from transition charge account	7,355	7,464
Proceeds from nuclear decommissioning trust fund sales	143,106	88,424
Investment in nuclear decommissioning trust funds	(147,842)	(92,706)
Change in money pool receivable - net	(75,842)	17,362
Investment in affiliates	0	0
Net cash flow used in investing activities	(312,498)	(155,234)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	467,042	0
Retirement of long-term debt	(135,893)	(5,987)
Change in money pool payable - net	0	46,219
Changes in credit borrowings - net	(6,792)	(33,887)
Dividends paid:
Common stock	(15,000)	0
Preferred stock	(3,437)	(3,437)
Other	0	(789)
Net cash flow used in financing activities	305,920	2,119
Net increase (decrease) in cash and cash equivalents	8,469	(7,184)
Cash and cash equivalents at beginning of period	34,533	22,599
Cash and cash equivalents at end of period	43,002	15,415
Cash paid / (received) during the period for:
Interest - net of amount capitalized	43,706	40,714
Income taxes	211,421	(6,897)
Entergy Gulf States Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	56,885	78,748
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	108,028	102,930
Deferred income taxes, investment tax credits, and non-current taxes accrued	44,828	16,197
Changes in working capital:
Receivables	(54,074)	63,010
Fuel inventory	(5,537)	(10,399)
Accounts payable	44,284	18,656
Prepaid taxes and taxes accrued	(50,487)	62,389
Interest accrued	(565)	(1,280)
Deferred fuel	(31,661)	(34,570)
Other working capital accounts	(32,018)	(6,475)
Changes in provisions for estimated losses	(62,747)	(4,625)
Changes in other regulatory assets	39,396	3,691
Changes in pension and other postretirement liabilities	5,455	(291)
Other	40,549	1,432
Net cash flow provided by operating activities	102,336	289,413
INVESTING ACTIVITIES
Construction/capital expenditures	(148,160)	(128,809)
Allowance for equity funds used during construction	3,459	4,752
Payments for Nuclear Fuel	(115,370)	(21,983)
Proceeds from sale of nuclear fuel	19,401	26,820
Changes in securitization account	0	(122,091)
Payment to storm reserve escrow account	(21)	(36)
Receipts from storm reserve escrow account	65,475	3,364
Decrease (increase) in other investments	0	0
Proceeds from nuclear decommissioning trust fund sales	46,735	60,821
Investment in nuclear decommissioning trust funds	(56,339)	(70,155)
Proceeds from sale of investment	0	51,000
Other	0	0
Net cash flow used in investing activities	(184,820)	(196,317)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	69,792	0
Retirement of long-term debt	(75,000)	(10,840)
Change in money pool payable - net	28,529	0
Changes in credit borrowings - net	144,700	(25,900)
Dividends paid:
Common stock	(119,900)	(22,600)
Preferred stock	(412)	(412)
Other	0	(722)
Net cash flow used in financing activities	47,709	(60,474)
Net increase (decrease) in cash and cash equivalents	(34,775)	32,622
Cash and cash equivalents at beginning of period	35,686	24,845
Cash and cash equivalents at end of period	911	57,467
Cash paid / (received) during the period for:
Interest - net of amount capitalized	39,598	41,633
Income taxes	61,688	0
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	106,753	164,009
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	163,907	153,929
Deferred income taxes, investment tax credits, and non-current taxes accrued	69,345	(154,896)
Changes in working capital:
Receivables	(92,534)	(53,346)
Fuel inventory	538	248
Accounts payable	(11,090)	(10,615)
Prepaid taxes and taxes accrued	8,345	10,711
Interest accrued	(1,647)	(4,200)
Deferred fuel	(10,887)	(27,835)
Other working capital accounts	13,573	3,794
Changes in provisions for estimated losses	(185,518)	(13,780)
Changes in other regulatory assets	82,219	16,784
Other regulatory liabilities	37,090	138,047
Changes in pension and other postretirement liabilities	4,877	(11,627)
Other	48,423	(2,109)
Net cash flow provided by operating activities	233,394	209,114
INVESTING ACTIVITIES
Construction/capital expenditures	(418,402)	(223,780)
Allowance for equity funds used during construction	12,839	17,051
Payments for Nuclear Fuel	(21,887)	(26,905)
Payment for purchase of plant	0	0
Proceeds from sale of nuclear fuel	23,438	32,168
Changes in securitization account	3,023	(20,910)
Remittances to transition charge account	(9,119)	(13,236)
Payments from transition charge account	8,758	15,473
Receipts from storm reserve escrow account	186,985	14,399
Proceeds from nuclear decommissioning trust fund sales	9,492	10,343
Investment in nuclear decommissioning trust funds	(15,376)	(15,930)
Other	0	0
Net cash flow used in investing activities	(220,249)	(211,327)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	96,442	247,573
Retirement of long-term debt	(18,954)	(31,936)
Change in money pool payable - net	0	(118,415)
Changes in credit borrowings - net	87,202	(81,831)
Dividends paid:
Common stock	(201,254)	(600)
Preferred stock	(3,475)	(3,475)
Other	0	0
Net cash flow used in financing activities	(40,039)	11,316
Net increase (decrease) in cash and cash equivalents	(26,894)	9,103
Cash and cash equivalents at beginning of period	30,086	878
Cash and cash equivalents at end of period	3,192	9,981
Cash paid / (received) during the period for:
Interest - net of amount capitalized	72,320	67,166
Income taxes	(697)	(3,601)
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	32,888	24,596
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	53,551	48,074
Deferred income taxes, investment tax credits, and non-current taxes accrued	17,319	5,627
Changes in working capital:
Receivables	(34,538)	40,205
Fuel inventory	(1,930)	(3,452)
Accounts payable	26,511	(292)
Prepaid taxes and taxes accrued	(24,786)	(12,716)
Interest accrued	2,283	(4,681)
Deferred fuel	(5,751)	13,957
Other working capital accounts	(1,030)	(7,587)
Changes in provisions for estimated losses	9	(2,148)
Changes in other regulatory assets	(1,889)	4,773
Changes in pension and other postretirement liabilities	(2,179)	(6,010)
Other	496	(3,342)
Net cash flow provided by operating activities	60,954	97,004
INVESTING ACTIVITIES
Construction/capital expenditures	(85,436)	(79,851)
Allowance for equity funds used during construction	1,446	2,190
Proceeds from sale of assets and businesses	0	0
Changes in securitization account	12,023	(10,374)
Investment in affiliates	0	0
Other	(6)	(23)
Net cash flow used in investing activities	(71,973)	(88,058)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	0	0
Retirement of long-term debt	(100,000)	0
Change in money pool payable - net	0	(1,999)
Changes in credit borrowings - net	70,000	0
Dividends paid:
Common stock	(7,400)	0
Preferred stock	(1,414)	(1,414)
Other	(70)	(94)
Net cash flow used in financing activities	(38,884)	(3,507)
Net increase (decrease) in cash and cash equivalents	(49,903)	5,439
Cash and cash equivalents at beginning of period	52,970	16
Cash and cash equivalents at end of period	3,067	5,455
Cash paid / (received) during the period for:
Interest - net of amount capitalized	26,492	32,013
Income taxes	(1,008)	2,118
Entergy New Orleans
OPERATING ACTIVITIES
Consolidated net income	1,905	7,226
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	19,002	18,268
Deferred income taxes, investment tax credits, and non-current taxes accrued	(12,061)	(9,083)
Changes in working capital:
Receivables	(1,942)	(7,765)
Fuel inventory	420	974
Accounts payable	2,790	(5,551)
Prepaid taxes and taxes accrued	(1,047)	5,454
Interest accrued	(219)	(331)
Deferred fuel	959	(8,413)
Other working capital accounts	(4,557)	(9,554)
Changes in provisions for estimated losses	(4,250)	2,065
Changes in other regulatory assets	12,461	9,286
Changes in pension and other postretirement liabilities	(1,086)	(4,383)
Other	11,569	1,700
Net cash flow provided by operating activities	23,944	(107)
INVESTING ACTIVITIES
Construction/capital expenditures	(44,018)	(30,969)
Allowance for equity funds used during construction	433	302
Changes in securitization account	(63,683)	9,074
Payment to storm reserve escrow account	(3,807)	(2,806)
Receipts from storm reserve escrow account	7,749	0
Decrease (increase) in other investments	0	0
Investment in affiliates	0	0
Net cash flow used in investing activities	(103,326)	(24,399)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	99,024	0
Change in money pool payable - net	0	18,809
Changes in credit borrowings - net	0	0
Dividends paid:
Common stock	0	(1,700)
Preferred stock	(482)	(482)
Other	(55)	(255)
Net cash flow used in financing activities	98,487	16,372
Net increase (decrease) in cash and cash equivalents	19,105	(8,134)
Cash and cash equivalents at beginning of period	9,391	9,834
Cash and cash equivalents at end of period	28,496	1,700
Cash paid / (received) during the period for:
Interest - net of amount capitalized	6,254	5,476
Income taxes	425	0
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	11,875	17,948
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	47,072	41,844
Deferred income taxes, investment tax credits, and non-current taxes accrued	(28,187)	12,373
Changes in working capital:
Receivables	(43,776)	19,538
Fuel inventory	(4,337)	(7,506)
Accounts payable	36,679	19,978
Prepaid taxes and taxes accrued	120,352	(14,095)
Interest accrued	(394)	(326)
Deferred fuel	(93,518)	(13,064)
Other working capital accounts	4,387	(4,642)
Changes in provisions for estimated losses	2,124	2,525
Changes in other regulatory assets	46,800	34,619
Changes in pension and other postretirement liabilities	(4,303)	(7,141)
Other	(1,258)	(6,690)
Net cash flow provided by operating activities	93,516	95,361
INVESTING ACTIVITIES
Construction/capital expenditures	(92,149)	(83,474)
Allowance for equity funds used during construction	2,669	2,074
Changes in securitization account	(21,118)	10,794
Remittances to transition charge account	(39,933)	(38,104)
Payments from transition charge account	48,650	48,739
Net cash flow used in investing activities	(101,881)	(59,971)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	0	0
Retirement of long-term debt	(33,157)	(32,293)
Change in money pool payable - net	0	0
Dividends paid:
Common stock	0	(45,000)
Other	(162)	(701)
Net cash flow used in financing activities	(33,319)	(77,994)
Net increase (decrease) in cash and cash equivalents	(41,684)	(42,604)
Cash and cash equivalents at beginning of period	60,236	65,289
Cash and cash equivalents at end of period	18,552	22,685
Cash paid / (received) during the period for:
Interest - net of amount capitalized	44,663	45,402
Income taxes	(94,189)	6,000
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	55,740	61,904
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	124,192	80,946
Deferred income taxes, investment tax credits, and non-current taxes accrued	34,693	73,886
Changes in working capital:
Receivables	11,076	(5,502)
Accounts payable	43	12,026
Prepaid taxes and taxes accrued	(211,986)	(56,901)
Interest accrued	(3,254)	(5,400)
Other working capital accounts	8,537	(37,718)
Changes in other regulatory assets	11,145	(2,334)
Changes in pension and other postretirement liabilities	(1,777)	(5,711)
Other	(12,003)	(5,347)
Net cash flow provided by operating activities	16,406	109,849
INVESTING ACTIVITIES
Construction/capital expenditures	(30,515)	(341,458)
Allowance for equity funds used during construction	3,203	21,987
Payments for Nuclear Fuel	(29,802)	(157,719)
Proceeds from sale of nuclear fuel	26,522	0
Decrease (increase) in other investments	0	0
Proceeds from nuclear decommissioning trust fund sales	91,230	223,243
Investment in nuclear decommissioning trust funds	(106,990)	(238,062)
Change in money pool receivable - net	26,915	120,424
Net cash flow used in investing activities	(19,437)	(371,585)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	0	50,000
Retirement of long-term debt	(40,902)	(39,892)
Change in money pool payable - net	51,092	41,138
Changes in credit borrowings - net	(38,934)	61,102
Dividends paid:
Common stock	(50,000)	(32,750)
Other	(1,227)	(2,581)
Net cash flow used in financing activities	(79,971)	77,017
Net increase (decrease) in cash and cash equivalents	(83,002)	(184,719)
Cash and cash equivalents at beginning of period	83,622	185,157
Cash and cash equivalents at end of period	620	438
Cash paid / (received) during the period for:
Interest - net of amount capitalized	17,578	21,357
Income taxes	$ 204,219	$ (3,873)