Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
Benefit Plans [Abstract]
Maximum percentage of total benefit obligation for international pension plans	25.00%
Pension Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 2.0	$ 2.1
Interest cost	3.0	3.1
Expected return on plan assets	(4.8)	(4.5)
Amortization [Abstract]
Prior service cost	0.2	0.5
Recognized net actuarial (gain)/loss	2.7	2.1
Net periodic benefit cost	3.1	3.3
Employer Contributions [Abstract]
Expected company contribution to its benefit plans	15.0
Company contribution to benefit plans	3.9
Other Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0.1	0.1
Interest cost	0.1	0.1
Amortization [Abstract]
Prior service cost	(0.3)	(0.8)
Recognized net actuarial (gain)/loss	(0.2)	(0.1)
Net periodic benefit cost	(0.3)	$ (0.7)
Employer Contributions [Abstract]
Expected company contribution to its benefit plans	$ 0.5