Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Comprehensive Income (Loss) [Abstract]
Net earnings	$ 39.7	$ 27.5
Other comprehensive income (loss):
Foreign currency cumulative translation adjustment	6.2	16.1
Net change in unamortized prior service cost	(1.7)	(1.2)
Net change in unamortized actuarial loss	5.8	5.4
Net change in unrealized derivative losses	(2.0)	(2.6)
Total other comprehensive income	8.3	17.7
Comprehensive income	$ 48.0	$ 45.2