Comprehensive Income, Reclassification out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales		$ (817.6)	$ (768.8)	$ (1,544.5)	$ (1,420.4)
Total before tax		150.2	131.9	235.1	207.0
Tax (provision) benefit		(42.6)	(44.8)	(70.9)	(70.8)
Net of tax		107.6	87.1	164.2	136.2
Amount reclassified from Accumulated other comprehensive income (loss) | Amortization of defined benefit items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service credits	[1]	0.3	0.6	0.6	1.1
Net actuarial losses	[1]	(5.1)	(3.8)	(10.3)	(7.5)
Total before tax		(4.8)	(3.2)	(9.7)	(6.4)
Tax (provision) benefit		1.7	1.2	3.6	2.4
Net of tax		(3.1)	(2.0)	(6.1)	(4.0)
Amount reclassified from Accumulated other comprehensive income (loss) | Amount of gain (loss) reclassified into earnings on derivative contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax		4.7	0.4	7.8	(2.2)
Tax (provision) benefit		(1.5)	(0.2)	(2.5)	0.8
Net of tax		3.2	0.2	5.3	(1.4)
Amount reclassified from Accumulated other comprehensive income (loss) | Amount of gain (loss) reclassified into earnings on derivative contracts | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales		4.5	(0.1)	7.1	(0.5)
Amount reclassified from Accumulated other comprehensive income (loss) | Amount of gain (loss) reclassified into earnings on derivative contracts | Commodity contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales		$ 0.2	$ 0.5	$ 0.7	$ (1.7)

[1] These Accumulated other comprehensive income (loss) components are included in the computation of net pension and other benefit costs. See Note 13 – Pension and Other Postretirement Benefits for additional details.