Summary of Significant Accounting Policies Hyperinflationary Economies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Apr. 03, 2015
Mar. 28, 2014
Dec. 31, 2014
Dec. 31, 2013
Impairment of Intangible Assets (Excluding Goodwill) $ 52 $ 0    
Cash and Cash Equivalents, at Carrying Value 8,211 9,131 8,958 10,414
Venezuelan subsidiary        
Impairment of Intangible Assets (Excluding Goodwill) 52      
Net Monetary Assets, Receivables and Intangible Assets 69      
Official Exchange Rate Set by Government for Non Essential Goods   6.3    
SICAD 1 Rate   10.8    
SICAD 2 Rate   50.9    
Remeasurement Charges on Subsidiary Assets 27      
Accounts Receivable Write-Down 56      
SCIAD 2 Rate     49.9795  
SIMADI Rate 193      
Cash and Cash Equivalents, at Carrying Value 12      
Corporate | Venezuelan subsidiary        
Remeasurement Charges on Subsidiary Assets $ 27 $ 226