Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 30, 2012
Statement of Financial Position [Abstract]
Trade receivables, allowance for doubtful receivables	$ 19,728	$ 22,006
Preferred stock, par value	$ 1	$ 1
Preferred stock, Authorized shares	2,000,000	2,000,000
Preferred stock, Issued shares	0	0
Common stock, par value	$ 1	$ 1
Common stock, Authorized shares	800,000,000	800,000,000
Common stock, Issued shares	324,418,632	324,418,632
Treasury stock, shares	95,278,843	94,376,534