Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Benefit Plans [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	$ 1.8	$ 2.0	$ 3.6	$ 3.9
Interest cost	3.6	3.0	7.1	6.1
Expected return on plan assets	(4.6)	(4.8)	(9.2)	(9.6)
Amortization [Abstract]
Prior service cost	0.1	0.1	0.2	0.2
Recognized net actuarial (gain) loss	2.3	2.7	4.6	5.5
Net periodic benefit cost	3.2	3.0	6.3	6.1
Employer Contributions [Abstract]
Expected employer contribution to its benefit plans	9.7		9.7
Employer contribution to benefit plans			3.1
Other Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0.1	0.1	0.1	0.1
Interest cost	0.0	0.0	0.1	0.1
Amortization [Abstract]
Prior service cost	0.0	(0.2)	0.0	(0.4)
Recognized net actuarial (gain) loss	(0.2)	(0.2)	(0.4)	(0.4)
Net periodic benefit cost	(0.1)	$ (0.3)	(0.2)	$ (0.6)
Employer Contributions [Abstract]
Expected employer contribution to its benefit plans	$ 0.3		0.3
Other Benefits [Member] | Maximum [Member]
Employer Contributions [Abstract]
Employer contribution to benefit plans			$ 0.1