Consolidated Statements of Earnings (Unaudited) (Percentage to Sales)	3 Months Ended		6 Months Ended
	Jul. 03, 2011	Jul. 04, 2010	Jul. 03, 2011	Jul. 04, 2010
Consolidated Statements of Earnings [Abstract]
Sales to customers (Note 9)	100.00%	100.00%	100.00%	100.00%
Cost of products sold	31.20%	30.20%	30.40%	29.60%
Gross profit	68.80%	69.80%	69.60%	70.40%
Selling, marketing and administrative expenses	31.40%	31.00%	31.30%	30.80%
Research and development expense	11.30%	10.80%	11.00%	10.40%
Interest income	(0.10%)	(0.30%)	(0.10%)	(0.20%)
Interest expense, net of portion capitalized	0.80%	0.70%	0.80%	0.60%
Other (income) expense, net	1.30%	0.10%	0.60%	(5.10%)
Restructuring expense	3.50%		1.80%
Earnings before provision for taxes on income	20.60%	27.50%	24.20%	33.90%
Provision for taxes on income (Note 5)	3.90%	5.00%	5.10%	8.10%
NET EARNINGS	16.70%	22.50%	19.10%	25.80%