Benefit Plans (Actuarial Valuations) (Details)	12 Months Ended
	Dec. 30, 2016	Jan. 01, 2016	Jan. 02, 2015
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.20%	2.30%	3.40%
Salary growth	2.90%	3.00%	3.10%
Expected rate of return on assets	2.00%	2.30%	2.50%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	1.90%	2.20%	2.30%
Salary growth	2.90%	2.90%	3.00%
Expected rate of return on assets	1.50%	2.00%	2.30%