Employee Benefit Plans (Weighted-Average Assumptions) (Details)	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit Cost for Plan Year	8.00%	8.25%
Benefit Obligation at End of Plan Year	7.75%	8.00%
Benefit Cost for Plan Year	4.75%	5.00%
Benefit Obligation at End of Plan Year	3.75%	4.75%
Salary Scale Inflation	3.75%	4.00%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit Cost for Plan Year	4.25%	4.50%
Benefit Obligation at End of Plan Year	3.20%	4.25%