XML 59 R42.htm IDEA: XBRL DOCUMENT v3.6.0.2
Debt (Short-Term Commercial Paper Programs and Line of Credit Facility) (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 29, 2017
Jan. 31, 2016
Commercial Paper [Member]    
Short-Term Line of Credit and Commercial Paper Programs [Abstract]    
Credit Facility Maximum Borrowing Capacity $ 2,000  
Balance outstanding at fiscal year-end 710 $ 350
Maximum Amount Outstanding at Any Month-End 710 350
Average Daily Short-Term Borrowings $ 51 $ 69
Weighted Average Interest Rate 0.63% 0.34%
Revolving Credit Facility [Member]    
Short-Term Line of Credit and Commercial Paper Programs [Abstract]    
Credit Facility Maximum Borrowing Capacity $ 2,000  
Credit Facility Expiration Date Dec. 31, 2019