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Net Sales (Details) - USD ($)
$ in Millions
 3 Months Ended
May 02, 2021
May 03, 2020
Disaggregation of Revenue [Line Items]    
Net sales $ 37,500 $ 28,260
Products    
Disaggregation of Revenue [Line Items]    
Net sales 36,271 27,305
Services    
Disaggregation of Revenue [Line Items]    
Net sales 1,229 955
Building Materials    
Disaggregation of Revenue [Line Items]    
Net sales 13,660 9,816
Décor    
Disaggregation of Revenue [Line Items]    
Net sales 11,882 9,306
Hardlines    
Disaggregation of Revenue [Line Items]    
Net sales 11,958 9,138
In the U.S.    
Disaggregation of Revenue [Line Items]    
Net sales 34,717 26,418
Outside the U.S.    
Disaggregation of Revenue [Line Items]    
Net sales $ 2,783 $ 1,842