Income Taxes (Imported)	6 Months Ended
Income Taxes (Imported)	Jun. 30, 2012
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
Entergy Arkansas [Member]
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
Entergy Gulf States Louisiana [Member]
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
Entergy Louisiana [Member]
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
Entergy Mississippi [Member]
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
Entergy New Orleans
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
Entergy Texas [Member]
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.
System Energy [Member]
Income Taxes	NOTE 10. INCOME TAXES (Entergy Corporation, Entergy Arkansas, Entergy Gulf States Louisiana, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy) See Income Tax Litigation, Income Tax Audits, and Other Tax Matters in Note 3 to the financial statements in the Form 10-K for a discussion of income tax proceedings, income tax audits, and other income tax matters involving Entergy. Following are updates to that discussion. Income Tax Litigation As discussed in the Form 10-K, in October 2010 the United States Tax Court entered a decision in favor of Entergy for tax years 1997 and 1998 regarding the ability to credit as a foreign tax credit the U.K. Windfall Tax against U.S. income tax. In June 2012, the U.S. Court of Appeals for the Fifth Circuit unanimously affirmed the U.S. Tax Court decision. As a result of this decision, Entergy reversed its liability for uncertain tax positions associated with this issue. Income Tax Audits 2008-2009 IRS Audit In the third quarter 2008, Entergy Louisiana and Entergy Gulf States Louisiana received $679 million and $274.7 million, respectively, from the Louisiana Utilities Restoration Corporation ("LURC"). These receipts from LURC were from the proceeds of a Louisiana Act 55 financing of the costs incurred to restore service following Hurricane Katrina and Hurricane Rita. See Note 2 to the financial statements in the Form 10-K for further details regarding the financings. In June 2012, Entergy effectively settled the tax treatment of the receipt of these funds, which resulted in an income tax benefit of $172 million for Entergy, including $143 million for Entergy Louisiana and $20 million for Entergy Gulf States Louisiana, which includes the effect of reversing liabilities for uncertain tax positions. Under the terms of an LPSC-approved settlement related to the benefits associated with Louisiana Act 55 financings, Entergy Louisiana and Entergy Gulf States Louisiana recorded, respectively, a $137 million ($84 million net-of-tax) and a $28 million ($17 million net-of-tax) regulatory charge and a corresponding regulatory liability to reflect their obligations to share the benefits with customers.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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+ Details