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Weighted Average Common Shares (Reconciliation of Basic to Diluted Weighted Average Common Shares) (Details) - shares
shares in Millions
3 Months Ended 9 Months Ended
Nov. 03, 2019
Oct. 28, 2018
Nov. 03, 2019
Oct. 28, 2018
Reconciliation of Basic to Diluted Weighted Average Common Shares:        
Basic weighted average common shares (in shares) 1,089 1,135 1,096 1,144
Effect of potentially dilutive securities (in shares) 5 6 4 6
Diluted weighted average common shares (in shares) 1,094 1,141 1,100 1,150
Anti-dilutive securities excluded from diluted weighted average common shares (in shares) 0 0 0 0