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Stockholders' equity - ASR - Additional Information (Details) - Accelerate share repurchase - USD ($)
$ / shares in Units, $ in Millions
2 Months Ended 6 Months Ended
Mar. 02, 2022
Jul. 12, 2022
Feb. 28, 2022
Stockholders Equity Note      
Stock repurchase program authorized amount     $ 400
Accelerated share repurchases price paid per share   $ 78.9443  
Initial shares received as part of an accelerated share repurchase program 3,483,942    
Additional common shares repurchased   1,582,922  
Common shares attributable to ASR   5,066,864  
Treasury stock      
Stockholders Equity Note      
Accelerated share repurchase adjustments $ 320 $ 120  
Capital surplus      
Stockholders Equity Note      
Accelerated share repurchase adjustments $ (80) $ 120