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Benefit Plans (Actuarial Valuations) (Details)
12 Months Ended
Jan. 01, 2016
Jan. 02, 2015
Jan. 03, 2014
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 2.20% 2.30%  
Salary growth 2.90% 3.00%  
Expected rate of return on assets 2.00% 2.30%  
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 2.30% 3.40% 2.10%
Salary growth 3.00% 3.10% 2.40%
Expected rate of return on assets 2.30% 2.50% 0.00%