Consolidated Balance Sheets (Parenthetical)	Jan. 28, 2012	Jan. 29, 2011
Treasury stock, at cost, Class A, shares	73,099,319	61,740,439
Common stock Class A
Common stock, shares issued	118,529,925	117,706,523
Common stock, shares outstanding	45,430,606	55,966,084
Common stock Class B (convertible)
Common stock, shares issued	4,010,929	4,010,929
Common stock, shares outstanding	4,010,929	4,010,929