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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Millions
 12 Months Ended
Mar. 31, 2022
CAD ($)
business_segments
Mar. 31, 2021
CAD ($)
Disclosure of detailed information about property, plant and equipment [line items]    
Number of operating segments | business_segments 3  
Average remaining depreciation period (in years) 11 years 9 months 18 days 12 years 2 months 12 days
Increase In royalty obligations, impact of 1% change in growth rate | $ $ 1.7 $ 2.3
Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Expected warranty claims period 1 year  
Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Expected warranty claims period 7 years  
Government royalties | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Estimated growth rate (in percent) 3.00%  
Discount rate for government royalty payments (in percent) 6.00%  
Government royalties | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Estimated growth rate (in percent) 9.00%  
Discount rate for government royalty payments (in percent) 10.40%  
Capitalized development costs    
Disclosure of detailed information about property, plant and equipment [line items]    
Average remaining amortization period (in years) 5 years 9 months 18 days 5 years 3 months 18 days
Capitalized development costs | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 3 years  
Capitalized development costs | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 10 years  
Customer relationships | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 3 years  
Customer relationships | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 20 years  
Technology, software and ERP | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 3 years  
Technology, software and ERP | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 12 years  
Licenses | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 3 years  
Licenses | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 20 years  
Other intangible assets | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 2 years  
Other intangible assets | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, intangible assets other than goodwill (in years) 40 years  
Buildings and land    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, right of use assets (in years or hours) 40 years  
Simulators    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, right of use assets (in years or hours) 25 years  
Machinery and equipment    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, right of use assets (in years or hours) 7 years  
Buildings and improvements | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Amortization rate, property, plant and equipment (in percent or years) 2.50%  
Useful lives, property, plant and equipment 3 years  
Buildings and improvements | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Amortization rate, property, plant and equipment (in percent or years) 10.00%  
Useful lives, property, plant and equipment 40 years  
Simulators    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, property, plant and equipment 25 years  
Machinery and equipment | Bottom of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Amortization rate, property, plant and equipment (in percent or years) 20.00%  
Useful lives, property, plant and equipment 2 years  
Machinery and equipment | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Amortization rate, property, plant and equipment (in percent or years) 35.00%  
Useful lives, property, plant and equipment 15 years  
Aircraft    
Disclosure of detailed information about property, plant and equipment [line items]    
Useful lives, property, plant and equipment 25 years  
Useful lives, right of use assets (in years or hours) 25 years  
Aircraft engines    
Disclosure of detailed information about property, plant and equipment [line items]    
Utilization rate, right of use assets 3500 hours  
Aircraft engines | Top of range    
Disclosure of detailed information about property, plant and equipment [line items]    
Utilization rate, property plant and equipment 3500 hours