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Rate And Regulatory Matters (Narrative) (Details) (USD $) | 20 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended
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May 02, 2003 | Jan. 31, 2014 Entergy Louisiana [Member] | Mar. 31, 2013 Entergy Louisiana [Member] | Apr. 30, 2014 Entergy Gulf States Louisiana [Member] Subsequent Event [Member] | Aug. 31, 2012 Entergy New Orleans [Member] | Jan. 31, 2014 Entergy Texas [Member] | Sep. 30, 2013 Entergy Texas [Member] | Mar. 31, 2014 Entergy Texas [Member] | Sep. 30, 2013 Natural Gas Processing Plant [Member] Entergy Gulf States Louisiana [Member]
Commitments and Contingencies [Abstract] |  |  |  |  |  |  |  |  |
Public Utilities Earned Return On Common Equity |  | 8.13% | 10.40% |  |  | 9.20% | 10.40% | 9.80% | 5.47%
Rate Increase |  | $ 5,560,000 | $ 13,000,000 | $ 1,500,000 |  |  | $ 38,600,000 | $ 18,500,000 | $ 1,500,000
Rate Increase Period |  | 3 years | 3 years |  |  |  |  |  |
Rate Case Filing Request To Reconcile Fuel and Purchased Power Costs and Fuel Revenues |  |  |  |  |  |  | 900,000,000 |  |
Rate Case Filing Request Special Circumstances Fuel Cost Recovery Of Purchased Power Costs |  |  |  |  |  |  | 22,000,000 |  |
Storm restoration costs incurred - Hurricane Isaac |  |  |  |  | 47,300,000 |  |  |  |
Rate reduction |  |  |  |  |  | 300,000 |  |  |
Period of prohibited refunds | 20 months |  |  |  |  |  |  |  |
Storm reserve withdrawal |  |  |  |  | $ 17,400,000 |  |  |  |

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