Comprehensive Income (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Income tax expense (benefit) allocated to other comprehensive (loss) income
Pension and other postretirement benefits	$ 1.6	$ 31.3	$ 5.5	$ 35.6
Cash flow hedges	0.1	(0.8)		(0.2)
Income tax expense related to components of other comprehensive (loss) income	$ 1.7	$ 30.5	$ 5.5	$ 35.4