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Provisions - Main assumptions (Detail) - Respironics field action [Member]
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Ten percentage point increase [Member]    
Provisions [Line Items]    
Sensitivity analysis effect of change in main assumption 10.00%  
Ten percentage point increase [Member] | Total number of devices [Member]    
Provisions [Line Items]    
Sensitivity analysis effect of change in main assumption   2600.00%
Ten percentage point increase [Member] | Replacement share [Member]    
Provisions [Line Items]    
Sensitivity analysis effect of change in main assumption   1200.00%
Ten percentage point decrease [Member]    
Provisions [Line Items]    
Sensitivity analysis effect of change in main assumption (10.00%)  
Ten percentage point decrease [Member] | Total number of devices [Member]    
Provisions [Line Items]    
Sensitivity analysis effect of change in main assumption   (2600.00%)
Ten percentage point decrease [Member] | Replacement share [Member]    
Provisions [Line Items]    
Sensitivity analysis effect of change in main assumption   (1200.00%)