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Weighted Average Common Shares (Reconciliation of Basic to Diluted Weighted Average Common Shares) (Details) - shares
shares in Millions
12 Months Ended
Jan. 31, 2021
Feb. 02, 2020
Feb. 03, 2019
Reconciliation of Basic to Diluted Weighted Average Common Shares:      
Basic weighted average common shares 1,074 1,093 1,137
Effect of potentially dilutive securities 4 4 6
Diluted weighted average common shares 1,078 1,097 1,143