Quarterly report pursuant to Section 13 or 15(d)

Fair Value Disclosures (Other Financial Instruments) (Details)

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Fair Value Disclosures (Other Financial Instruments) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 29, 2017
Jul. 29, 2017
Jan. 28, 2017
Jul. 30, 2016
Fair Value Disclosures [Abstract]        
Total debt, excluding unamortized debt issuance costs, capital leases, financing obligation and note payable, Fair Value   $ 3,817 $ 4,495 $ 4,530
Total debt, excluding unamortized debt issuance costs, capital leases, financing obligation and note payable, carrying amount   4,124 4,665 4,764
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Carrying value of long-lived assets impaired, fair value disclosure   86    
Asset Impairment Charges $ 77 77    
Fair Value, Inputs, Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Liability   15 $ 12 $ 37
Assets, Fair Value Disclosure, Nonrecurring   $ 9