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L3HARRIS' MILITARY TRAINING BUSINESS - Private placements of subscription receipts (Details) - CAD ($) $ in Millions		12 Months Ended
	Mar. 04, 2021	Mar. 31, 2021	Mar. 31, 2020
Disclosure of detailed information about business combination [abstract]
Gross proceeds	$ 700.0	$ 700.0
Interest earned on escrowed proceeds		0.1
Restricted funds for subscription receipts deposit		700.1	$ 0.0
Accrued commitment fee	$ 14.0	14.0
Liabilities for subscription receipts		$ 714.1	$ 0.0

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- Definition

Liabilities For Subscription Receipts, Current

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- Definition

Proceeds From Issuance Of Subscription Receipts

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Subscription Receipts, Accrued Commitment Fee Recorded As A Reduction Of Equity

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- Definition

Subscription Receipts, Interest Earned On Escrowed Proceeds

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The amount of current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents]

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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