Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Employer Contributions [Abstract]
Maximum percentage of total benefit obligation for international pension plans (in hundredths)	25.00%		25.00%
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 2.7	$ 2.2	$ 5.3	$ 4.2
Interest cost	3.9	3.4	7.8	6.5
Expected return on plan assets	(5.0)	(4.6)	(10.1)	(8.9)
Amortization [Abstract]
Prior service cost	0.3	0.3	0.6	0.6
Recognized net actuarial (gain) loss	3.0	1.7	5.7	3.4
Net periodic benefit cost	4.9	3.0	9.3	5.8
Employer Contributions [Abstract]
Expected company contribution to its benefit plans			7.2
Company contribution to benefit plans			3.9
Other Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0.1	0.1	0.2	0.2
Interest cost	0.1	0.1	0.2	0.2
Amortization [Abstract]
Prior service cost	(0.7)	(0.8)	(1.5)	(1.6)
Recognized net actuarial (gain) loss	(0.1)	(0.1)	(0.1)	(0.1)
Net periodic benefit cost	$ (0.6)	$ (0.7)	(1.2)	$ (1.3)
Employer Contributions [Abstract]
Expected company contribution to its benefit plans			1.0
Company contribution to benefit plans			$ 0.2