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Consolidated Statements Of Changes In Equity (USD $)
In Thousands
Entergy Arkansas [Member]
Common Stock [Member]
Entergy Arkansas [Member]
Paid In Capital [Member]
Entergy Arkansas [Member]
Retained Earnings [Member]
Entergy Arkansas [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 Gulf States Louisiana [Member]
Entergy Louisiana [Member]
Preferred Membership Interest
Entergy Louisiana [Member]
Member's Equity [Member]
Entergy Louisiana [Member]
Accumulated Other Comprehensive Income [Member]
Entergy Louisiana [Member]
Entergy Mississippi [Member]
Common Stock [Member]
Entergy Mississippi [Member]
Capital Stock Expense and Other [Member]
Entergy Mississippi [Member]
Retained Earnings [Member]
Entergy Mississippi [Member]
Entergy New Orleans
Common Stock [Member]
Entergy New Orleans
Paid In Capital [Member]
Entergy New Orleans
Retained Earnings [Member]
Entergy New Orleans
Entergy Texas [Member]
Common Stock [Member]
Entergy Texas [Member]
Paid In Capital [Member]
Entergy Texas [Member]
Retained Earnings [Member]
Entergy Texas [Member]
System Energy [Member]
Common Stock [Member]
System Energy [Member]
Retained Earnings [Member]
System Energy [Member]
Subsidiaries' Preferred Stock [Member]
Common Stock [Member]
Treasury Stock [Member]
Paid In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Total
Beginning Balance at Dec. 31, 2011 $ 470 $ 588,444 $ 855,210 $ 1,444,124 $ 10,000 $ 1,393,386 $ (69,610) $ 1,333,776 $ 100,000 $ 2,504,436 $ (39,507) $ 2,564,929 $ 199,326 $ (690) $ 637,070 $ 835,706 $ 33,744 $ 36,294 $ 111,127 $ 181,165 $ 49,452 $ 481,994 $ 367,909 $ 899,355 $ 789,350 $ 11,213 $ 800,563 $ 94,000 $ 2,548 $ (5,680,468) $ 5,360,682 $ 9,446,960 $ (168,452) $ 9,055,270
Consolidated net income     142,180 142,180 0 128,958 0 128,958 0 244,217 0 244,217 0 0 51,676 51,676     17,781 17,781 0 0 37,182 37,182   92,520 92,520 16,108 0 0 0 550,405 0 566,513
Member contribution         0 1,000 0 1,000                                                    
Distribution to parent                 0 (600) 0 (600)                                            
Other comprehensive income (loss)         0 0 12,397 12,397 0 0 1,890 1,890                               0 0 0 0 0 31,659 31,659
Common stock repurchased, value                                                       0 0 0 0 0 0 0
Common stock issuances related to stock plans                                                       0 0 95,857 (7,163) 0 0 88,694
Common stock dividends declared         0 (67,400) 0 (67,400)                     (1,700) (1,700) 0 0 (57,420) (57,420)   (32,750) (32,750) 0 0 0 0 (441,506) 0 (441,506)
Preferred dividend requirements of subsidiaries     (5,155) (5,155) 0 (619) 0 (619) 0 (5,213) 0 (5,213) 0 0 (2,121) (2,121)     (724) (724)               (16,108) 0 0 0 0 0 (16,108)
Other         0 (114) 0 (114)                                                    
Ending Balance at Sep. 30, 2012 470 588,444 992,235 1,581,149 10,000 1,455,211 (57,213) 1,407,998 100,000 2,742,840 (37,617) 2,805,223 199,326 (690) 686,625 885,261 33,744 36,294 126,484 196,522 49,452 481,994 347,671 879,117 789,350 70,983 860,333 94,000 2,548 (5,584,611) 5,353,519 9,555,859 (136,793) 9,284,522
Beginning Balance at Jun. 30, 2012                                                                    
Consolidated net income       82,551       50,210       80,208       27,080       10,555       19,234     30,616             342,670
Other comprehensive income (loss)               862       630                                           (61,196)
Preferred dividend requirements of subsidiaries                                                                   (5,582)
Ending Balance at Sep. 30, 2012 470 588,444   1,581,149       1,407,998       2,805,223       885,261 33,744 36,294   196,522       879,117 789,350   860,333             9,284,522
Beginning Balance at Dec. 31, 2012 470 588,444 990,702 1,579,616 10,000 1,438,233 (65,229) 1,383,004 100,000 3,016,628 (46,132) 3,070,496 199,326 (690) 681,010 879,646 33,744 36,294 125,527 195,565 49,452 481,994 322,700 854,146 789,350 43,379 832,729 94,000 2,548 (5,574,819) 5,357,852 9,704,591 (293,083) 9,291,089
Consolidated net income 0 0 137,779 137,779 0 119,528 0 119,528 0 207,350 0 207,350 0 0 66,701 66,701 0 0 9,990 9,990 0 0 47,676 47,676 0 90,845 90,845 14,247 0 0 0 564,973 0 579,220
Member contribution         0 0 0 0                                                    
Distribution to parent                 0 (371,855) 0 (371,855)                                            
Other comprehensive income (loss)         0 0 2,880 2,880 0 0 2,045 2,045                               0 0 0 0 0 49,553 49,553
Common stock issuances related to stock plans                                                       0 0 36,175 4,572 0 0 40,747
Common stock dividends declared 0 0 (15,000) (15,000) 0 (119,900) 0 (119,900)         0 0 (7,400) (7,400) 0 0 0 0 0 0 (25,000) (25,000) 0 (50,000) (50,000) 0 0 0 0 (443,911) 0 (443,911)
Preferred dividend requirements of subsidiaries 0 0 (5,155) (5,155) 0 (619) 0 (619) 0 (5,213) 0 (5,213) 0 0 (2,121) (2,121) 0 0 (724) (724)               (14,247) 0 0 0 0 0 (14,247)
Other         0 16 0 16                                                    
Ending Balance at Sep. 30, 2013 470 588,444 1,108,326 1,697,240 10,000 1,437,258 (62,349) 1,384,909 100,000 2,846,910 (44,087) 2,902,823 199,326 (690) 738,190 936,826 33,744 36,294 134,793 204,831 49,452 481,994 345,376 876,822 789,350 84,224 873,574 94,000 2,548 (5,538,644) 5,362,424 9,825,653 (243,530) 9,502,451
Beginning Balance at Jun. 30, 2013                                                                    
Consolidated net income       82,577       62,642       100,597       33,813       8,086       35,801     35,105             244,182
Other comprehensive income (loss)               963       684                                           30,773
Preferred dividend requirements of subsidiaries                                                                   (4,332)
Ending Balance at Sep. 30, 2013       $ 1,697,240       $ 1,384,909       $ 2,902,823       $ 936,826       $ 204,831       $ 876,822     $ 873,574             $ 9,502,451