Consolidated Balance Sheets (Unaudited) (Parenthetical) (Unaudited) (USD $)	Oct. 31, 2014	Jan. 31, 2014	Oct. 31, 2013
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1.000	$ 1.000	$ 1.000
Common stock, shares authorized (in shares)	100,000,000	100,000,000	100,000,000
Common stock, shares issued (in shares)	65,400,000	65,318,000	65,293,000
Treasury stock, at cost (in shares)	28,897,000	28,897,000	28,897,000