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Stockholders' equity - ASR - Additional Information (Details) - Accelerate share repurchase - USD ($)
$ in Millions
2 Months Ended 3 Months Ended
Mar. 02, 2022
Mar. 31, 2022
Feb. 28, 2022
Stockholders Equity Note      
Stock repurchase program authorized amount   $ 400 $ 400
Accelerated share repurchases settlement payment $ 400    
Initial shares received as part of an accelerated share repurchase program 3,483,942 3,483,942  
Treasury stock      
Stockholders Equity Note      
Common stock purchases $ (320)    
Capital surplus      
Stockholders Equity Note      
Common stock purchases $ (80)