2.4.0.811301 - Disclosure - Asset Retirement Obligationstruefalsefalse1false falsefalseDuration_1_1_2013_To_6_30_2013http://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:001false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations2false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_EntergyArkansasMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEntergy Arkansas [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_EntergyArkansasMemberdei_LegalEntityAxisexplicitMembernanafalse0Entergy Arkansas [Member]3false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse3false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_EntergyGulfStatesLouisianaMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEntergy Gulf States Louisiana [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_EntergyGulfStatesLouisianaMemberdei_LegalEntityAxisexplicitMembernanafalse0Entergy Gulf States Louisiana [Member]5false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations6false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse4false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_EntergyLouisianaMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEntergy Louisiana [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_EntergyLouisianaMemberdei_LegalEntityAxisexplicitMembernanafalse0Entergy Louisiana [Member]7false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations8false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse5false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_SystemEnergyMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseSystem Energy [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_SystemEnergyMemberdei_LegalEntityAxisexplicitMembernanafalse0System Energy [Member]9false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations10false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse6false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_EntergyMississippiMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEntergy Mississippi [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_EntergyMississippiMemberdei_LegalEntityAxisexplicitMembernanafalse0Entergy Mississippi [Member]11false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations12false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse7false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_EntergyNewOrleansMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEntergy New Orleansdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_EntergyNewOrleansMemberdei_LegalEntityAxisexplicitMembernanafalse0Entergy New Orleans13false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement Obligations14false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse8false truefalseDuration_1_1_2013_To_6_30_2013_dei_LegalEntityAxis_etr_EntergyTexasMemberhttp://www.sec.gov/CIK0000065984duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseEntergy Texas [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldietr_EntergyTexasMemberdei_LegalEntityAxisexplicitMembernanafalse0Entergy Texas [Member]15false 4us-gaap_AssetRetirementObligationDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b>NOTE 13.<font class="_mt"> </font>ASSET RETIREMENT OBLIGATIONS<font class="_mt"> </font>(Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)</b></p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b> </b>&nbsp;</p><font style="color: windowtext;" class="_mt"> </font> <div><font style="color: windowtext;" class="_mt"> </font> <div> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="MsoBodyText3"><b><font class="_mt"><font class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </font></font></b>See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations.<font class="_mt">&nbsp; </font>Following is an update to that discussion.</p> <p style="text-align: justify; text-indent: 0.5in; margin: 0in 0in 0pt; font-family: 'Courier New'; font-size: 12pt;" class="MsoNormal"><font style="font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; font-size: 11pt;" class="_mt"> </font>&nbsp;</p> <p style="text-align: justify; margin: 0in 0in 0pt; font-family: 'Times New Roman','serif'; letter-spacing: -0.1pt; color: black; font-size: 11pt;" class="MsoBodyText2"><font style="color: windowtext;" class="_mt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;In the first quarter of 2013, Entergy Wholesale Commodities recorded a revision to its estimated decommissioning cost liability for a nuclear site as a result of a revised decommissioning cost study.&nbsp; The revised estimate resulted in a $<font class="_mt">46.6</font> million reduction in the decommissioning cost liability, along with a corresponding reduction in the related asset retirement cost asset. </font></p></div></div></div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 false0Asset Retirement ObligationsfalseAsset Retirement ObligationsUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://entergy.com/role/DisclosureAssetRetirementObligations115