Accumulated Other Comprehensive Income (Loss) (Reclassification from OCI) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2013	Dec. 28, 2012	Dec. 30, 2011
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ (3,393.3)	$ (3,079.5)	$ (3,270.2)
Actuarial losses - Selling, general and administrative expenses	(176.9)	(177.2)	(190.4)
Other expense (income), net	13.6	(1.9)	(9.7)
Changes in Fair Value of Effective Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency cash flow hedges	6.0
Cost of sales	(5.6)
Total	0.4
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	1.6
Actuarial losses - Selling, general and administrative expenses	0.4
Total	2.0
Changes in Fair Value of Available for Sale Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense (income), net	(2.3)
Total	$ (2.3)