Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Percentage of inventories determined using the last-in, first-out (LIFO) method	31.00%	45.00%
FIFO LIFO valuation difference	$ 60.0	$ 57.0
Commitments for purchases of property, plant, and equipment	$ 17.8
Shares excluded from the calculation of the effect of dilutive securities	0.3	0.7	0.3
Long-term rate of return on plan assets	8.00%	8.25%	8.25%
Incremental Common Shares Attributable to Conversion of Debt Securities			0.3
Minimum [Member]
Property, Plant and Equipment [Line Items]
Discount rate for defined benefit pension plans	4.40%	5.15%
Maximum [Member]
Property, Plant and Equipment [Line Items]
Discount rate for defined benefit pension plans	5.50%	5.93%