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Debt Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Jan. 31, 2018
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity $ 3,100      
Principal repayments on long-term debt in 2018 407      
Principal repayments on long-term debt in 2019 507      
Principal repayments on long-term debt in 2020 850      
Principal repayments on long-term debt in 2021 600      
Principal repayments on long-term debt in 2022 1,079      
Principal repayments on long-term debt in 2023 and beyond 4,876      
Interest expense, capitalized 4 $ 4 $ 4  
Unsecured Five Year Credit Agreement        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 2,000      
Three Hundred Sixty Four Day Revolving Credit Agreement [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 800     $ 1,000
Letter of Credit [Member] | Unsecured Five Year Credit Agreement        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 75      
U.S. Swingline Loans [Member] | Unsecured Five Year Credit Agreement        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 200      
European Swingline Loans [Member] | Unsecured Five Year Credit Agreement        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 400      
Euro Commercial Paper [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity 750      
Line of Credit Facility, Maximum Month-end Outstanding Amount $ 96 $ 306