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Severance, acquisition and other costs (Tables)
6 Months Ended
Jun. 30, 2022
Analysis of income and expense [abstract]  
Disclosure of severance, acquisition and other costs
THREE MONTHS SIX MONTHS
FOR THE PERIOD ENDED JUNE 30 2022 2021 2022 2021
Severance (38) (7) (56) (104)
Acquisition and other (2) —  3 
Total severance, acquisition and other costs (40) (7) (53) (96)