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Business Acquisitions, Goodwill and Intangible Assets - Intangible assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Intangible assets    
Gross Carrying Amount $ 1,203 $ 1,174
Accumulated Amortization (436) (391)
Net 767 783
Patents and technology    
Intangible assets    
Gross Carrying Amount 537 513
Accumulated Amortization (158) (120)
Net $ 379 393
Finite-Lived Intangible Asset, Useful Life 15 years  
Customer relationships and contractual agreements    
Intangible assets    
Gross Carrying Amount $ 384 375
Accumulated Amortization (226) (220)
Net $ 158 155
Finite-Lived Intangible Asset, Useful Life 15 years  
Trade names and trademarks    
Intangible assets    
Gross Carrying Amount $ 264 263
Accumulated Amortization (36) (32)
Net $ 228 231
Finite-Lived Intangible Asset, Useful Life 16 years  
Other    
Intangible assets    
Gross Carrying Amount $ 18 23
Accumulated Amortization (16) (19)
Net $ 2 4
Finite-Lived Intangible Asset, Useful Life 9 years  
Trade names and trademarks    
Indefinite-lived intangible assets    
Indefinite-lived intangible assets $ 204 $ 204