Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 29, 2013	Dec. 29, 2012
Preferred stock, no par value
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, Series D ESOP stated value	$ 0.01	$ 0.01
Preferred stock, shares outstanding	599,466	608,693
Common stock, par value	$ 2.50	$ 2.50
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares outstanding	87,136,058	86,883,521