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Exit Activities - Narrative (Details)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended 18 Months Ended
Nov. 01, 2019
USD ($)
option
Nov. 01, 2019
USD ($)
Jan. 29, 2021
USD ($)
Jan. 31, 2020
USD ($)
location
store
Jan. 29, 2021
USD ($)
Canada Restructuring          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Costs incurred $ 53   $ 35 $ 108 $ 143
Number of stores to be closed | option 34        
2018 Restructurings          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Costs incurred   $ 1,100      
Number of stores closed in the U.S. | store       20  
Number of locations closed in Canada | location       31