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L3HARRIS' MILITARY TRAINING BUSINESS - Private placements of subscription receipts (Details) - CAD ($)
$ in Millions
Jul. 02, 2021
Mar. 31, 2022
Mar. 31, 2021
Disclosure of detailed information about business combination [abstract]      
Gross proceeds $ 700.0    
Restricted funds for subscription receipts deposit   $ 0.0 $ 700.1
Liabilities for subscription receipts   $ 0.0 $ 714.1