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RESTRUCTURING, INTEGRATION AND ACQUISITION COSTS - Narrative (Details) - CAD ($) $ in Millions | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Expense of restructuring activities | $ 39.3 |
Restructuring, integration and acquisition costs | 131.4 | $ 62.6
Impairment reversal of non-financial assets following their repurposing and optimization | 0.0 | 9.8
Severance and other employee related costs |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Expense of restructuring activities | 15.8 |
Impairment of intangible assets |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Expense of restructuring activities | 16.8 |
Defense and Security |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Impairment reversal of non-financial assets following their repurposing and optimization |  | 6.8
Civil Aviation |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Impairment reversal of non-financial assets following their repurposing and optimization |  | 3.0
Sabre AirCentre airline operations portfolio |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Restructuring, integration and acquisition costs | 76.8 | 48.9
L3Harris' Military Training business |  |
Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] |  |
Restructuring, integration and acquisition costs | $ 12.9 | $ 17.6

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- Definition The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 98 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_98_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of reversal of impairment loss recognised in profit or loss. [Refer: Reversal of impairment loss; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 126 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_126_b&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 129 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_129_b&doctype=Standard -URIDate 2023-03-23 + Details
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