Defined Benefit Plans (Components Of Net Periodic Benefit Cost Of Defined Benefit Pension Pans) (Details) - Defined benefit pension plans - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2017	Sep. 30, 2016	Sep. 29, 2017	Sep. 30, 2016
U.S.
Defined Benefit Plan Disclosure
Service cost	$ 1.9	$ 2.2	$ 5.7	$ 6.8
Interest cost	20.1	22.3	62.1	67.7
Expected return on plan assets	(32.4)	(33.0)	(98.2)	(99.6)
Amortization of actuarial loss	5.9	6.3	19.1	18.3
Curtailment gain recognized	0.0	0.0	0.0	(0.7)
Net periodic pension cost	(4.5)	(2.2)	(11.3)	(7.5)
Non-U.S.
Defined Benefit Plan Disclosure
Service cost	8.1	9.0	23.7	26.9
Interest cost	6.7	8.4	19.5	25.8
Expected return on plan assets	(10.8)	(9.9)	(31.5)	(30.8)
Amortization of actuarial loss	2.0	1.9	5.8	8.5
Amortization of prior service credit	(0.1)	(0.1)	(0.3)	(0.3)
Settlement loss recognized	0.0	0.0	0.0	0.1
Net periodic pension cost	$ 5.9	$ 9.3	$ 17.2	$ 30.2