Accumulated Other Comprehensive Income (Loss) (Reclassification from OCI) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 26, 2014	Sep. 27, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ (810.7)	$ (808.1)	$ (2,696.1)	$ (2,546.3)
Actuarial losses - Selling, general and administrative expenses	(44.6)	(45.3)	(132.6)	(133.6)
Other expense (income), net	(4.2)	(0.2)	(7.1)	15.7
Changes in Fair Value of Effective Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency cash flow hedges - Sales	(1.0)	(4.0)	0.5	1.9
Cost of sales	1.1	(1.7)	0.3	(3.3)
Total	0.1	(5.7)	0.8	(1.4)
Retirement Benefit Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	0.2	0.4	0.7	1.2
Actuarial losses - Selling, general and administrative expenses	0.1	0.1	0.2	0.3
Total	0.3	0.5	0.9	1.5
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense (income), net	0	0	0	(2.3)
Total	$ 0	$ 0	$ 0	$ (2.3)