Balance Sheets (ENTERGY NEW ORLEANS, INC.) (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	254,752,788	254,752,788
Entergy New Orleans
Common stock, par value	4	4
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	8,435,900	8,435,900
Common stock, shares outstanding	8,435,900	8,435,900