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Summary of Significant Accounting Policies - Information regarding significant accounting policies (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
item
Jan. 02, 2016
USD ($)
Jan. 03, 2015
USD ($)
Principles of Consolidation and Financial Statement Presentation      
Number of borrowing groups | item 2    
Collaborative Arrangements      
Collaborative arrangement profit sharing percentage allocation on cost-plus contracts 50.00%    
Collaborative arrangement negotiated profit sharing percentage allocation on fixed-price contracts 50.00%    
Revenue Recognition      
Period of customization services 6 months    
Goodwill and Intangible Assets      
Gross intangible assets amortized based on the cash flow streams 79.00%    
Environmental Liabilities and Asset Retirement Obligations      
Asset retirement obligations $ 0    
Warranty and Product Maintenance Liabilities      
Period for warranty and product maintenance programs, minimum 1 year    
Period for warranty and product maintenance programs, maximum 5 years    
Research and Development Costs      
Research and development costs $ 677 $ 778 $ 694