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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 03, 2019
Jan. 28, 2018
Jan. 29, 2017
Accounting Policies [Line Items]      
Fiscal Year, Period 53 weeks 52 weeks 52 weeks
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification $ 6,000    
Investments Classified As Cash Equivalents, Original Maturity 3 months    
Percentage of merchandise inventories that are calculated using a cost method 29.00%    
Expiration date of Private Label Credit Card program 2028    
Recognized income tax positions are measured at the largest amount exceeding a probability of 50.00%    
Impairment of Intangible Assets (Excluding Goodwill) $ 247    
Quantitative Goodwill Impairment Assessment Time Interval 3 years    
Maximum [Member] | Other Intangible Assets [Member]      
Accounting Policies [Line Items]      
Intangible asset, useful life 12 years    
Software and Software Development Costs [Member] | Minimum [Member]      
Accounting Policies [Line Items]      
Software, useful life 3 years    
Software and Software Development Costs [Member] | Maximum [Member]      
Accounting Policies [Line Items]      
Software, useful life 6 years