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Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Competitive Energy Revenue |  | $ 522,079 | $ 642,590
Other Nonoperating Income (Expense) |  | (10,587) | (9,020)
INCOME BEFORE INCOME TAXES |  | 375,187 | 453,400
Income taxes (benefits) |  | (139,945) | (150,471)
Consolidated net income | [1] | 235,242 | 302,929
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Consolidated net income |  | 94,214 | 8,654
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Consolidated net income |  | 1,963 | 8,655
Parent Company [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Competitive Energy Revenue |  | 153,958 | 13,522
Other Nonoperating Income (Expense) |  | (400) | (546)
INCOME BEFORE INCOME TAXES |  | 153,558 | 12,976
Income taxes (benefits) |  | (53,745) | (4,542)
Consolidated net income |  | 99,813 | 8,434
Parent Company [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Realized gain (loss) |  | 3,850 | 16,970
Income taxes (benefits) |  | (1,887) | (8,315)
Parent Company [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amortization of prior-service credit |  | 7,355 | 5,986
Amortization of loss |  | (15,175) | (17,588)
INCOME BEFORE INCOME TAXES |  | (7,820) | (11,602)
Income taxes (benefits) |  | 258 | 3,167
Consolidated net income |  | (7,562) | (8,435)
Entergy Louisiana [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Other Nonoperating Income (Expense) |  | (3,745) | (200)
INCOME BEFORE INCOME TAXES |  | 161,348 | 168,911
Income taxes (benefits) |  | (49,742) | (42,802)
Consolidated net income |  | 111,606 | 126,109
Entergy Louisiana [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amortization of prior-service credit |  | 1,947 | 1,867
Amortization of loss |  | (1,569) | (2,535)
INCOME BEFORE INCOME TAXES |  | 378 | (668)
Income taxes (benefits) |  | (115) | 288
Consolidated net income |  | $ 263 | $ (380)
[1] | (a) Consolidated net income and preferred dividend requirements of subsidiaries for 2016 and 2015 include $5.3 million and $3.2 million, respectively, of preferred dividends on subsidiaries’ preferred stock without sinking fund that is not presented within equity.

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- Definition Revenue from selling electricity supply in a retail access program. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(b)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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