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Common stock transactions (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Dec. 01, 2021
Nov. 30, 2021
Oct. 29, 2021
Jul. 30, 2021
Apr. 30, 2021
Oct. 30, 2020
Oct. 29, 2021
Oct. 30, 2020
Common stock transactions                
Aggregate purchase price     $ 359,759     $ 901,930 $ 2,059,907 $ 1,566,546
Cash dividend paid (in dollars per share)     $ 0.42 $ 0.42 $ 0.42 $ 0.36 $ 1.26 $ 1.08
Subsequent event                
Common stock transactions                
Cash dividend declared (in dollars per share)   $ 0.42            
Common Stock                
Common stock transactions                
Shares acquired under share repurchase program     1,633     4,408 9,901 8,043
Aggregate purchase price     $ 1,428     $ 3,858 $ 8,663 $ 7,038
Common Stock | Pursuant to Authorized Repurchase Program                
Common stock transactions                
Shares acquired under share repurchase program             9,900 8,000
Aggregate purchase price             $ 2,100,000 $ 1,600,000
Common Stock | Pursuant to Authorized Repurchase Program | Subsequent event                
Common stock transactions                
Common stock repurchase program, increase in the authorized amount $ 2,000,000              
Common stock repurchase authorization $ 14,000,000