XML 33 R21.htm IDEA: XBRL DOCUMENT v3.23.1
Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Billions
Apr. 30, 2023
Jan. 31, 2023
Apr. 30, 2022
Accounting Policies [Line Items]      
Outstanding payment obligation $ 4.7 $ 5.2 $ 6.0
Minimum      
Accounting Policies [Line Items]      
Supplier finance program, payment timing, period (in days) 30 days    
Maximum      
Accounting Policies [Line Items]      
Supplier finance program, payment timing, period (in days) 90 days