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Computer Equipment, Software, Leasehold Improvements, and Furniture, Net
 6 Months Ended
Jul. 31, 2023
Property, Plant and Equipment [Abstract]  
Computer Equipment, Software, Leasehold Improvements, and Furniture, Net Computer Equipment, Software, Leasehold Improvements, and Furniture, Net
Computer equipment, software, leasehold improvements, and furniture and equipment and the related accumulated depreciation were as follows: 
July 31, 2023January 31, 2023
Computer hardware, at cost$127 $126 
Computer software, at cost50 49 
Leasehold improvements, land and buildings, at cost359 363 
Furniture and equipment, at cost97 94 
633 632 
Less: Accumulated depreciation(497)(488)
Computer hardware, software, leasehold improvements, and furniture and equipment, net
$136 $144