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Basis of Presentation (Tables)
6 Months Ended
Jul. 31, 2021
Basis of Presentation [Abstract]  
COVID-19 Related Asset Impairment Charges The following table provides details related to asset impairment charges as a result of COVID-19:
August 1, 2020
Quarter EndedSix Months Ended
Long-lived asset impairment1
$2 $96 
ROU asset impairment1
18 41 
Total asset impairment$20 $137 
1 As of August 1, 2020, the carrying value of the applicable long-lived and ROU assets after impairment was $14 and $6.