Property, Plant, And Equipment	3 Months Ended
Property, Plant, And Equipment	Mar. 31, 2014
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
Entergy Arkansas [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
Entergy Gulf States Louisiana [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
Entergy Louisiana [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
Entergy Mississippi [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
Entergy New Orleans [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
Entergy Texas [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.
System Energy [Member]
Property, Plant And Equipment	PROPERTY, PLANT, AND EQUIPMENT (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) Construction Expenditures in Accounts Payable Construction expenditures included in accounts payable at March 31, 2014 are $149.5 million for Entergy, $40.1 million for Entergy Arkansas, $19.9 million for Entergy Gulf States Louisiana, $14.5 million for Entergy Louisiana, $6.1 million for Entergy Mississippi, $9.8 million for Entergy Texas, and $15.6 million for System Energy. Construction expenditures included in accounts payable at December 31, 2013 are $166 million for Entergy, $61.9 million for Entergy Arkansas, $13.1 million for Entergy Gulf States Louisiana, $31.1 million for Entergy Louisiana, $2.8 million for Entergy Mississippi, $1.7 million for Entergy New Orleans, $10.9 million for Entergy Texas, and $6.7 million for System Energy. Impairment of Long-Lived Assets See “Impairment of Long-Lived Assets” in Note 1 to the financial statements in the Form 10-K for a discussion of the periodic reviews that Entergy performs whenever events or changes in circumstances indicate that the recoverability of long-lived assets is uncertain. Following are updates to that discussion regarding the Vermont Yankee nuclear power plant. As discussed in the Form 10-K, in December 2013, Entergy and Vermont entered into a settlement agreement, with an accompanying memorandum of understanding that was filed with the Vermont Public Service Board (VPSB), under which Vermont agreed to support Entergy’s request to operate Vermont Yankee until the end of 2014. The settlement agreement provided for Entergy to make $10 million in economic transition payments, $5 million in clean energy development support, and a transitional $5 million payment to Vermont. Entergy will also set aside a new $25 million fund to ensure the Vermont Yankee site is restored after decommissioning. These terms were contingent upon the VPSB issuing by March 31, 2014 a Certificate of Public Good authorizing Vermont Yankee’s operation through 2014, and otherwise conforming to the terms of the settlement agreement. The settlement agreement also provides for the dismissal or discontinuation of other litigation between Entergy and Vermont; in the case of Entergy’s appeal of the VPSB’s March and November 2012 orders, such dismissal is contingent upon the VPSB’s issuance of such a Certificate of Public Good. On March 28, 2014, the VPSB approved the memorandum of understanding and issued a Certificate of Public Good authorizing Vermont Yankee to operate until December 31, 2014. In May 2014 the VPSB denied a motion that had been filed by one of the intervenors to amend its approval order.

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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