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Employee Benefit Plans Employee Benefit Plans Narrative 2 (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
plan
Jan. 02, 2016
Jan. 03, 2015
Employee Benefit Plans [Line Items]      
Defined Benefit Plan, Number of Plans | plan 2    
Expected long-term rate of return on assets 6.52% 6.62% 5.06%
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year | $ $ 4.3    
Equity Funds [Member]      
Employee Benefit Plans [Line Items]      
Equity Securities 60.00%    
Fixed Income Funds [Member]      
Employee Benefit Plans [Line Items]      
Equity Securities 40.00%    
United States Postretirement Benefit Plan of US Entity [Member]      
Employee Benefit Plans [Line Items]      
Expected long-term rate of return on assets 6.90%    
Foreign Pension Plan [Member]      
Employee Benefit Plans [Line Items]      
Expected long-term rate of return on assets 2.70%    
Emerging Market [Member] | Equity Securities, International [Member]      
Employee Benefit Plans [Line Items]      
Concentration Risk, Percentage 10.00%