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Significant accounting policies (Tables)
12 Months Ended
Dec. 31, 2022
Significant Accounting Policies [abstract]  
Respective Useful Lives of property, plant and equipment
Useful life
Buildings
20 to 40 years
Machinery and other equipment
   Machinery and equipment
7 to 20 years
   Furniture and vehicles
5 to 10 years
   Computer hardware
3 to 7 years
Respective Useful Lives of Available-for-Use Intangible Assets


Useful life
Income statement line
for amortization and
impairment charges
Currently marketed products
5 to 20 years
"Cost of goods sold"
Technologies
10 to 20 years
"Cost of goods sold" or "Research and development"
Other (including software)
3 to 12 years
In the relevant functional expense