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SUPPLEMENTAL CASH FLOW INFORMATION - Changes in non-cash operating working capital items (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Cash Flow Statement [Abstract] |  |
Accounts receivable, excluding financing receivables | $ (78) | $ 455
Financing receivables | (840) | (1,658)
Contract assets | 417 | 1,170
Inventories | (56) | (19)
Other current assets | 13 | (132)
Accounts payable and accrued liabilities | 556 | (326)
Contract and other liabilities | 25 | 177
Total change in net operating assets and liabilities | $ 37 | $ (333)

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- Definition Adjustments for decrease (increase) in inventories to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Inventories; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 20 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Adjustments for decrease (increase) in other current assets to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Other current assets; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Adjustments for decrease (increase) in trade accounts receivable to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 20 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Adjustments for increase (decrease) in trade and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other payables; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in working capital. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_20&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Adjustments for increase (decrease) in deferred income to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Deferred income; Profit (loss)] + References No definition available. + Details
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- Definition Cash Flow Statement [Abstract] + References No definition available. + Details
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- Definition Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References No definition available. + Details
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