Consolidated Statements of Earnings (Unaudited) (Percentage to Sales)	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010
Consolidated Statements of Earnings [Abstract]
Sales to customers (Note 9)	100.00%	100.00%	100.00%	100.00%
Cost of products sold	31.70%	30.70%	30.80%	29.90%
Gross profit	68.30%	69.30%	69.20%	70.10%
Selling, marketing and administrative expenses	32.70%	31.40%	31.80%	31.00%
Research and development expense	11.10%	11.10%	11.00%	10.60%
Interest income	(0.10%)	(0.10%)	(0.10%)	(0.20%)
Interest expense, net of portion capitalized	0.80%	0.70%	0.80%	0.70%
Other (income) expense, net	(1.90%)	(2.00%)	(0.20%)	(4.00%)
Restructuring expense			1.20%
Earnings before provision for taxes on income	25.70%	28.20%	24.70%	32.00%
Provision for taxes on income (Note 5)	5.70%	5.40%	5.30%	7.20%
NET EARNINGS	20.00%	22.80%	19.40%	24.80%