Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Employer Contributions [Abstract]
Maximum percentage of total benefit obligation for international pension plans	25.00%		25.00%
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 1.7	$ 2.8	$ 6.3	$ 8.1
Interest cost	3.1	3.7	9.8	11.6
Expected return on plan assets	(4.6)	(4.9)	(13.9)	(14.9)
Amortization [Abstract]
Prior service cost	0.2	0.1	0.6	0.6
Recognized net actuarial (gain)/loss	2.5	3.2	7.6	8.9
Net periodic benefit cost	2.9	4.9	10.4	14.3
Employer Contributions [Abstract]
Expected company contribution to its benefit plans			9.0
Company contribution to benefit plans			7.1
Other Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0.1	0.1	0.3	0.3
Interest cost	0.1	0.1	0.3	0.3
Amortization [Abstract]
Prior service cost	(0.8)	(0.7)	(2.3)	(2.3)
Recognized net actuarial (gain)/loss	(0.1)	(0.1)	(0.2)	(0.1)
Net periodic benefit cost	$ (0.7)	$ (0.6)	(1.9)	$ (1.8)
Employer Contributions [Abstract]
Expected company contribution to its benefit plans			0.5
Company contribution to benefit plans			$ 0.1