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IMPAIRMENT OF NON-FINANCIAL ASSETS - Narrative (Details)
 3 Months Ended
Mar. 31, 2022
Disclosure of reconciliation of changes in goodwill [line items]  
Increase in discount rate (in percent) 1.00%
Decrease in growth rate (in percent) 1.00%
Bottom of range  
Disclosure of reconciliation of changes in goodwill [line items]  
Discount rate (in percent) 7.00%
Top of range  
Disclosure of reconciliation of changes in goodwill [line items]  
Discount rate (in percent) 13.00%
Civil Aviation, Defense and Security and Healthcare  
Disclosure of reconciliation of changes in goodwill [line items]  
Growth rate used to extrapolate cash flow projections (in years) 5 years
Civil Aviation, Defense and Security and Healthcare | Bottom of range  
Disclosure of reconciliation of changes in goodwill [line items]  
Estimated growth rate (in percent) 2.00%
Civil Aviation, Defense and Security and Healthcare | Top of range  
Disclosure of reconciliation of changes in goodwill [line items]  
Estimated growth rate (in percent) 3.00%