Nonpension Postretirement and Postemployment Benefits (Assumptions) (Details) (Nonpension Postretirement [Member])	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Nonpension Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate, benefit obligations	4.80%	3.90%	4.60%
Discount rate, annual net periodic benefit cost	3.90%	4.60%	5.30%
Long-term rate of return on plan assets, annual net periodic benefit cost	8.50%	8.90%	8.90%