A stable structured liquid laundry detergent composition is provided which is particularly effective for removing oily soils fabrics. The detergent composition comprises, by weight: a) from about 10 % to about 20 % of a linear alkyl benzene sulfonate anionic surfactant; b) from about 0 % to about 10 % of an alkyl ether sulfate anionic surfactant; c) from about 5 % to about 30 % of an alkali metal phosphorous-containing builder; d) from about 2 % to about 15 % of sodium carbonate; the total amount of components (c) plus (d) in the detergent composition being at least about 10 %; e) from about 0.1 % to about 15 % of an ethoxylated quaternary cationic surfactant having structural formula (1), wherein R1 represents a linear branched or substituted C8-C18 alkyl, alkaryl, aryl, alkenyl or ether moiety; R2 represents an alkyl group containing from 1 to 3 carbon atoms or a benzyl group; each of x and y are integers which can vary independently from 1 to 8 and the sum of x and y is greater than 2 and less than 9; and X represents a water-soluble anion; and f) balance water, said structured liquid detergent composition being free of a nonionic surfactant, and wherein the respective amounts of each of the components (a) through (e) is selected to provide a stable structured liquid composition.