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Net Sales (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 31, 2021
Nov. 01, 2020
Oct. 31, 2021
Nov. 01, 2020
Disaggregation of Revenue [Line Items]        
Net sales $ 36,820 $ 33,536 $ 115,438 $ 99,849
Products        
Disaggregation of Revenue [Line Items]        
Net sales 35,383 32,312 111,371 96,607
Services        
Disaggregation of Revenue [Line Items]        
Net sales 1,437 1,224 4,067 3,242
Building Materials        
Disaggregation of Revenue [Line Items]        
Net sales 13,809 12,594 41,880 34,966
Décor        
Disaggregation of Revenue [Line Items]        
Net sales 12,783 11,213 38,060 32,309
Hardlines        
Disaggregation of Revenue [Line Items]        
Net sales 10,228 9,729 35,498 32,574
In the U.S.        
Disaggregation of Revenue [Line Items]        
Net sales 33,736 30,845 106,095 92,468
Outside the U.S.        
Disaggregation of Revenue [Line Items]        
Net sales $ 3,084 $ 2,691 $ 9,343 $ 7,381