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Consolidated Statements Of Changes In Equity (USD $) In Thousands, unless otherwise specified | Total | Subsidiaries' Preferred Stock [Member] | Common Stock [Member] | Treasury Stock [Member] | Paid In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member] | Entergy Arkansas [Member] | Entergy Arkansas [Member] Common Stock [Member] | Entergy Arkansas [Member] Paid In Capital [Member] | Entergy Arkansas [Member] Retained Earnings [Member] | Entergy Gulf States Louisiana [Member] | Entergy Gulf States Louisiana [Member] Preferred Membership Interest | Entergy Gulf States Louisiana [Member] Member's Equity [Member] | Entergy Gulf States Louisiana [Member] Accumulated Other Comprehensive Income [Member] | Entergy Louisiana [Member] | Entergy Louisiana [Member] Preferred Membership Interest | Entergy Louisiana [Member] Member's Equity [Member] | Entergy Louisiana [Member] Accumulated Other Comprehensive Income [Member] | Entergy Mississippi [Member] | Entergy Mississippi [Member] Common Stock [Member] | Entergy Mississippi [Member] Capital Stock Expense and Other [Member] | Entergy Mississippi [Member] Retained Earnings [Member] | Entergy New Orleans [Member] | Entergy New Orleans [Member] Common Stock [Member] | Entergy New Orleans [Member] Paid In Capital [Member] | Entergy New Orleans [Member] Retained Earnings [Member] | Entergy Texas [Member] | Entergy Texas [Member] Common Stock [Member] | Entergy Texas [Member] Paid In Capital [Member] | Entergy Texas [Member] Retained Earnings [Member] | System Energy [Member] | System Energy [Member] Common Stock [Member] | System Energy [Member] Retained Earnings [Member]
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Beginning Balance at Dec. 31, 2012 | $ 9,291,089 |  | $ 94,000 |  | $ 2,548 | $ (5,574,819) | $ 5,357,852 | $ 9,704,591 |  | $ (293,083) | $ 1,579,616 | $ 470 | $ 588,444 | $ 990,702 | $ 1,383,004 | $ 10,000 | $ 1,438,233 | $ (65,229) | $ 3,070,496 | $ 100,000 | $ 3,016,628 | $ (46,132) | $ 879,646 | $ 199,326 | $ (690) | $ 681,010 | $ 195,565 | $ 33,744 | $ 36,294 | $ 125,527 | $ 854,146 | $ 49,452 | $ 481,994 | $ 322,700 | $ 832,729 | $ 789,350 | $ 43,379
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated net income | 166,982 | [1] | 5,582 | [1] | 0 | 0 | 0 | 161,400 | [1] | 0 | 14,719 | 0 | 0 | 14,719 | 27,165 | 0 | 27,165 | 0 | 45,376 | 0 | 45,376 | 0 | 13,934 | 0 | 0 | 13,934 | 1,307 | 0 | 0 | 1,307 | 922 | 0 | 0 | 922 | 28,006 | 0 | 28,006
Distribution to parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (40,601) | 0 | (40,601) | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) | (10,575) |  | 0 |  | 0 | 0 | 0 | 0 |  | (10,575) |  |  |  |  | 955 | 0 | 0 | 955 | 678 | 0 | 0 | 678 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuances related to stock plans | 12,982 |  | 0 |  | 0 | 20,949 | (7,967) | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends declared | (147,820) |  | 0 |  | 0 | 0 | 0 | (147,820) |  | 0 | 15,000 | 0 | 0 | 15,000 | (119,900) | 0 | (119,900) | 0 |  |  |  |  | 7,400 | 0 | 0 | 7,400 |  |  |  |  |  |  |  |  | (50,000) | 0 | (50,000)
Preferred dividend requirements of subsidiaries | (5,582) | [1] | (5,582) | [1] | 0 | 0 | 0 | 0 |  | 0 | (1,718) | 0 | 0 | (1,718) | (206) | 0 | (206) | 0 | (1,738) | 0 | (1,738) | 0 | (707) | 0 | 0 | (707) | (241) | 0 | 0 | (241) |  |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (10) | 0 | (10) | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance at Mar. 31, 2013 | 9,307,076 |  | 94,000 |  | 2,548 | (5,553,870) | 5,349,885 | 9,718,171 |  | (303,658) | 1,577,617 | 470 | 588,444 | 988,703 | 1,291,008 | 10,000 | 1,345,282 | (64,274) | 3,074,211 | 100,000 | 3,019,665 | (45,454) | 885,473 | 199,326 | (690) | 686,837 | 196,631 | 33,744 | 36,294 | 126,593 | 855,068 | 49,452 | 481,994 | 323,622 | 810,735 | 789,350 | 21,385
Beginning Balance at Dec. 31, 2013 | 9,726,466 |  | 94,000 |  | 2,548 | (5,533,942) | 5,368,131 | 9,825,053 |  | (29,324) | 1,719,718 | 470 | 588,471 | 1,130,777 | 1,460,977 | 10,000 | 1,479,179 | (28,202) | 2,975,652 | 100,000 | 2,885,287 | (9,635) | 951,577 | 199,326 | (690) | 752,941 | 206,283 | 33,744 | 36,294 | 136,245 | 887,027 | 49,452 | 481,994 | 355,581 | 876,107 | 789,350 | 86,757
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated net income | 406,053 |  | 4,879 |  |  | 0 | 0 | 401,174 |  | 0 | 28,370 | 0 | 0 | 28,370 | 46,472 | 0 | 46,472 | 0 | 58,378 | 0 | 58,378 | 0 | 25,839 | 0 | 0 | 25,839 | 8,294 | 0 | 0 | 8,294 | 13,165 | 0 | 0 | 13,165 | 24,619 | 0 | 24,619
Distribution to parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (43,434) | 0 | (43,434) | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) | 24,122 |  | 0 |  | 0 | 0 | 0 | 0 |  | 24,122 |  |  |  |  | 122 | 0 | 0 | 122 | (302) | 0 | 0 | (302) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuances related to stock plans | 38,941 |  | 0 |  | 0 | 56,440 | (17,499) | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends declared | (148,275) |  | 0 |  |  | 0 | 0 | (148,275) |  | 0 |  |  |  |  | (33,317) | 0 | (33,317) | 0 |  |  |  |  |  |  |  |  |  |  |  |  | (40,000) | 0 | 0 | (40,000) | (15,000) | 0 | (15,000)
Preferred dividend requirements of subsidiaries | (4,879) | [1] | (4,879) | [1] |  | 0 |  | 0 |  | 0 | (1,718) | 0 | 0 | (1,718) | (206) | 0 | (206) | 0 | (1,738) | 0 | (1,738) | 0 | (707) | 0 | 0 | (707) | (241) | 0 | 0 | (241) |  |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (10) | 0 | (10) | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance at Mar. 31, 2014 | $ 10,042,428 |  | $ 94,000 |  | $ 2,548 | $ (5,477,502) | $ 5,350,632 | $ 10,077,952 |  | $ (5,202) | $ 1,746,370 | $ 470 | $ 588,471 | $ 1,157,429 | $ 1,474,038 | $ 10,000 | $ 1,492,118 | $ (28,080) | $ 2,988,556 | $ 100,000 | $ 2,898,493 | $ (9,937) | $ 976,709 | $ 199,326 | $ (690) | $ 778,073 | $ 214,336 | $ 33,744 | $ 36,294 | $ 144,298 | $ 860,192 | $ 49,452 | $ 481,994 | $ 328,746 | $ 885,726 | $ 789,350 | $ 96,376
[1] | Consolidated net income and preferred dividend requirements of subsidiaries for 2014 and 2013 include $3.2 million and $3.9 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented within equity.

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