Consolidated Balance Sheets (Unaudited) Parenthetical (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 29, 2014	Dec. 29, 2013	Jun. 30, 2013
Current assets
Accounts receivable, allowance for doubtful accounts	$ 20,700	$ 19,000	$ 20,500
Property, plant and equipment, accumulated depreciation	512,200	500,500	496,800
Other assets
Other intangibles, accumulated amortization	$ 770,100	$ 744,800	$ 690,100
Shareholders' equity
Preference stock, par value (in dollars per share)	$ 2.50	$ 2.50	$ 2.50
Preference stock, authorized shares (in shares)	5,000,000	5,000,000	5,000,000
Preference stock, issued (in shares)	0	0	0
Common stock, par value (in dollars per share)	$ 0.50	$ 0.50	$ 0.50
Common stock, authorized shares (in shares)	600,000,000	600,000,000	600,000,000
Common stock, issued (in shares)	209,694,630	209,694,630	209,694,630
Treasury stock, at cost; shares (in shares)	81,767,695	78,640,228	79,718,124