Income Taxes (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Tax Credit Carryforward [Line Items]      
Valuation allowance $ 337 $ 400  
Impact on diluted earnings per share (USD per share) $ 1.26 $ 1.06 $ 0.96
Undistributed foreign earnings $ 5,100    
Interest and penalties 10 $ 4 $ 2
Accrued interest and penalties 58 44 $ 37
U.S Federal [Member]      
Tax Credit Carryforward [Line Items]      
U.S tax credit carryforwards 8    
Tax credit carryforward 68    
State Jurisdiction [Member]      
Tax Credit Carryforward [Line Items]      
Tax credit carryforward 92    
Foreign Tax Authority [Member]      
Tax Credit Carryforward [Line Items]      
Operating loss carryforwards 342    
Minimum [Member]      
Tax Credit Carryforward [Line Items]      
Potential reduction in liabilities for uncertain tax positions in next 12 months 150    
Maximum [Member]      
Tax Credit Carryforward [Line Items]      
Potential reduction in liabilities for uncertain tax positions in next 12 months 180    
Accounting Standards Update 2015-17 [Member]      
Tax Credit Carryforward [Line Items]      
Other Current Assets Excluding Deferred Income Taxes 269 272  
Restatement Adjustment [Member] | Accounting Standards Update 2015-17 [Member]      
Tax Credit Carryforward [Line Items]      
Other Current Assets Excluding Deferred Income Taxes $ 81 $ 104