Consolidated Balance Sheet (Parenthetical) (USD $)	Dec. 31, 2011	Jan. 01, 2011
Consolidated Balance Sheet
Common stock, par value	$ 0.25	$ 0.25
Common stock, shares, issued	419,484,087	419,272,027
Common stock, shares authorized	1,000,000,000	1,000,000,000
Treasury stock, shares	62,182,500	53,667,635