XML 77 R64.htm IDEA: XBRL DOCUMENT v3.21.2
Share-Based Compensation (Changes in Nonvested Options) (Details) - Restricted Stock Units [Member]
$ / shares in Units, shares in Thousands, $ in Millions
6 Months Ended
Jul. 31, 2021
USD ($)
$ / shares
shares
Number of Shares  
Nonvested, Beginning Balance 1,348
Granted 424
Vested (503)
Performance adjustment 240
Expired or cancelled (39) [1]
Nonvested, Ending Balance 1,470
Aggregate value | $ $ 64
Wtg. Avg. remaining contractual life (in years) 2 years
Weighted-Average Grant Date Fair Value per Share  
Nonvested, Beginning Balance | $ / shares $ 38.48
Granted | $ / shares 54.20
Vested | $ / shares 43.81
Cancelled | $ / shares 34.47 [1]
Nonvested, Ending Balance | $ / shares $ 43.54
[1] Weighted-Average