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OPERATING SEGMENTS AND GEOGRAPHIC INFORMATION - Assets And Liabilities Employed By Segment (Details) - CAD ($) $ in Millions | Mar. 31, 2023 | Mar. 31, 2022
--- | --- | ---
Disclosure of operating segments [line items] |  |
Assets | $ 10,436.5 | $ 9,578.8
Liabilities | 5,847.6 | 5,492.2
Operating segments | Civil Aviation |  |
Disclosure of operating segments [line items] |  |
Assets | 5,852.4 | 5,269.6
Liabilities | 1,142.0 | 1,012.7
Operating segments | Defense and Security |  |
Disclosure of operating segments [line items] |  |
Assets | 3,436.2 | 3,163.1
Liabilities | 871.2 | 824.8
Operating segments | Healthcare |  |
Disclosure of operating segments [line items] |  |
Assets | 310.1 | 269.2
Liabilities | 69.3 | 64.9
Unallocated amounts |  |
Disclosure of operating segments [line items] |  |
Assets | 837.8 | 876.9
Liabilities | $ 3,765.1 | $ 3,589.8

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