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Property and Accumulated Depreciation (Tables)
12 Months Ended
Jan. 31, 2020
Property, Plant and Equipment [Abstract]  
Property and Accumulated Depreciation

Property is summarized by major class in the following table:
(In millions)
Estimated
Depreciable Lives, In Years

January 31, 2020
 
February 1, 2019
Cost:


 
 
 
Land
N/A

$
7,200

 
$
7,196

Buildings and building improvements
5-40

17,862

 
18,052

Equipment
2-15

10,377

 
10,090

Construction in progress
N/A

506

 
525

Total cost

 
35,945

 
35,863

Accumulated depreciation

 
(17,276
)
 
(17,431
)
Property, less accumulated depreciation

 
$
18,669

 
$
18,432