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		6 Months Ended
	Jun. 30, 2017	Jul. 01, 2016	Jun. 30, 2017	Jul. 01, 2016
UNITED STATES
Defined Benefit Plan Disclosure
Service cost	$ 1.9	$ 2.3	$ 3.8	$ 4.6
Interest cost	21.0	22.7	42.0	45.4
Expected return on plan assets	(32.9)	(33.3)	(65.8)	(66.6)
Amortization of actuarial loss	6.6	6.0	13.2	12.0
Curtailment gain recognized	0.0	0.0	0.0	(0.7)
Net periodic pension cost	(3.4)	(2.3)	(6.8)	(5.3)
Non-U.S.
Defined Benefit Plan Disclosure
Service cost	7.9	9.1	15.6	17.9
Interest cost	6.5	8.8	12.8	17.4
Expected return on plan assets	(10.5)	(10.5)	(20.7)	(20.9)
Amortization of actuarial loss	1.9	1.9	3.8	3.9
Amortization of prior service credit	(0.1)	(0.1)	(0.2)	(0.2)
Net periodic pension cost	$ 5.7	$ 9.2	$ 11.3	$ 18.1