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Weighted Average Common Shares (Tables)
12 Months Ended
Jan. 31, 2021
Earnings Per Share [Abstract]  
Schedule of weighted average number of shares
The reconciliation of our basic to diluted weighted average common shares follows:
in millionsFiscalFiscalFiscal
202020192018
Basic weighted average common shares1,074 1,093 1,137 
Effect of potentially dilutive securities
Diluted weighted average common shares1,078 1,097 1,143 
Schedule of antidilutive securities excluded from computation of earnings per share
Anti-dilutive securities excluded from diluted weighted average common shares
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