Comprehensive Income (Loss) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Comprehensive Income (Loss) (Details) [Abstract]
Net earnings	$ 69.3	$ 13.7	$ 96.8	$ 0.7
Other comprehensive income (loss):
Foreign currency cumulative translation adjustment	2.3	(14.4)	18.4	(27.2)
Net change in unrealized gains (losses) on investments	0.3	(0.6)	0.3	(1.7)
Net change in unamortized prior service cost	5.0	(1.2)	3.8	(2.4)
Net change in unamortized actuarial loss	5.1	5.6	10.5	11.1
Net change in unrealized derivative gains (losses)	0.7	0.1	(1.9)	1.5
Total other comprehensive income (loss)	13.4	(10.5)	31.1	(18.7)
Comprehensive income (loss)	$ 82.7	$ 3.2	$ 127.9	$ (18.0)