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Retirement-Related Benefits (Tables)
 12 Months Ended
Jan. 31, 2022
Retirement Benefits [Abstract]  
Schedule of contribution expense related to defined contribution plans
The following table summarizes the contribution expense related to the Company's defined contribution plans for fiscal 2022, 2021 and 2020:
Fiscal Years Ended January 31,
(Amounts in millions)202220212020
Defined contribution plans:
U.S.$1,441 $1,290 $1,184 
International39 200 177 
Total contribution expense for defined contribution plans$1,480 $1,490 $1,361