Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Components of net periodic benefit cost (credit)
Recognized loss on settlements	$ 41.4		$ 41.4
Additional net pension plan obligations	72.0
U.S.
Defined Benefit Plans
Settled pension obligation	70.0		70.0
Components of net periodic benefit cost (credit)
Recognized loss on settlements	(41.4)
U.S. | Continuing operations
Components of net periodic benefit cost (credit)
Service cost	0.1	$ 0.1	0.2	$ 0.2
Interest cost	8.5	11.6	18.3	22.9
Actuarial loss	(1.7)		(1.7)
Expected return on plan assets	(10.5)	(12.9)	(21.9)	(25.8)
Recognized net actuarial loss	4.8	5.1	9.2	10.2
Amortization of prior service cost (credit)	0.3	0.3	0.6	0.6
Recognized loss on settlements	41.4		41.4
Net periodic benefit cost (credit)	46.3	4.2	49.5	8.1
Int'l | Continuing operations
Components of net periodic benefit cost (credit)
Service cost	3.5	3.3	6.9	7.0
Interest cost	4.2	4.3	8.3	8.8
Expected return on plan assets	(5.4)	(5.3)	(10.7)	(10.8)
Recognized net actuarial loss	1.8	2.3	3.6	4.8
Amortization of prior service cost (credit)	(0.1)		(0.2)	(0.1)
Recognized loss on settlements		3.8		3.8
Net periodic benefit cost (credit)	4.0	8.4	7.9	13.5
U.S. Postretirement Health Benefits | Continuing operations
Components of net periodic benefit cost (credit)
Interest cost			0.1	0.1
Recognized net actuarial loss	0.3	0.5	0.8	1.1
Amortization of prior service cost (credit)	(0.8)	(0.8)	(1.6)	(1.6)
Net periodic benefit cost (credit)	$ (0.5)	$ (0.3)	$ (0.7)	$ (0.4)