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Subsequent events - Text Details (Detail)
$ / shares in Units, € in Millions, $ in Millions
Dec. 31, 2021
USD ($)
Dec. 31, 2020
EUR (€)
Dec. 31, 2020
$ / shares
Subsequent events [Line Items]      
Bilateral bank loan total Feb 21   € 500  
Bilateral bank loan per loan Feb 21   € 250  
BioTelemetry [Member]      
Subsequent events [Line Items]      
Purchase of businesses, paid in cash, per share | $ / shares     $ 72.00
Number of employees   1,900  
BioTelemetry [Member] | US Dollar [Member]      
Subsequent events [Line Items]      
Consideration transferred, acquisition-date fair value | $ $ 2,800    
BioTelemetry [Member] | Euro [Member]      
Subsequent events [Line Items]      
Consideration transferred, acquisition-date fair value   € 2,300  
Capsule Technologies [Member] | US Dollar [Member]      
Subsequent events [Line Items]      
Consideration transferred, acquisition-date fair value | $ $ 635    
Capsule Technologies [Member] | Euro [Member]      
Subsequent events [Line Items]      
Consideration transferred, acquisition-date fair value   € 520