Retirement Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Net amortization			$ 6.5	$ 4.2
Pension benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	2.5	2.4	7.8	7.2
Interest cost	2.2	2.2	6.4	6.7
Expected return on plan assets	(1.4)	(1.4)	(4.3)	(4.2)
Settlement/curtailment	2.6	1.0	3.0	1.0
Net amortization	1.3	1.1	3.7	3.2
Net periodic benefit cost	7.2	5.3	16.6	13.9
Postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.1	0	0.1	0.1
Interest cost	0.2	0.4	0.8	1.1
Expected return on plan assets	0	0	0	0
Settlement/curtailment	0	0	0	0
Net amortization	0	0	(0.2)	0
Net periodic benefit cost	$ 0.3	$ 0.4	$ 0.7	$ 1.2