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Repurchase of Common Stock (Schedule of share repurchases) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Oct. 30, 2021
Oct. 30, 2021
Oct. 31, 2020
Shareholders' Equity [Abstract]      
Total cost of shares repurchased $ 426 $ 1,757 $ 56
Average price per share $ 115.94 $ 111.33 $ 86.30
Number of shares repurchased 3.7 15.8 0.6