Debt and finance lease liabilities, excluding Commercial paper and Term Loans

No definition available.

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- Definition

Average contractual rate at which a foreign currency can be purchased or sold.

+ References

No definition available.

+ Details

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

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- Definition

Contractual rate at which a foreign currency can be purchased or sold.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of decrease in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Financial instruments (Details) $ in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 CAD ($)	Jun. 30, 2022 CAD ($)	Jun. 30, 2023 CAD ($)	Jun. 30, 2022 CAD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 CAD ($)
Schedule of Investments [Line Items]
Debt and finance lease liabilities, carrying value	$ 22,726		$ 22,726			$ 19,651
Debt and finance lease liabilities, fair value	$ 21,169		$ 21,169			$ 17,720
Foreign Exchange Contract
Schedule of Investments [Line Items]
Derivative, notional amount					$ 215
Average forward exchange rate	20.61		20.61		20.61
Derivative, term of contract			345 days
Loss on derivative	$ 24		$ 24
Fair value of derivative	$ 46		$ 46
Foreign Exchange Contract \| Minimum
Schedule of Investments [Line Items]
Forward exchange rate	19.55		19.55		19.55
Foreign Exchange Contract \| Maximum
Schedule of Investments [Line Items]
Forward exchange rate	20.72		20.72		20.72
Net Investment Hedge
Schedule of Investments [Line Items]
Unrealized gain (loss) on net investment hedge	$ 163	$ 216	$ 162	$ 118