Unamortized losses related to interest rate locks accounted as cash flow hedges.

No definition available.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

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

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Nominal or face amount used to calculate payments on the derivative liability.

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- Definition

The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

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- Definition

The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

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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.

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Financial Instruments (Details) $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2018 CAD ($)	Dec. 31, 2020 CAD ($)	Dec. 31, 2019 CAD ($)	Dec. 31, 2018 CAD ($)	Jun. 30, 2018 USD ($)
4.000% 10-year Notes
Schedule of Investments [Line Items]
Debt instrument, Face amount					$ 500
Interest rate	4.00%	4.00%	4.00%		4.00%
Debt instrument, Term	10 years
Forward Starting Swaps
Schedule of Investments [Line Items]
Floating-to-fixed interest rate swaps, Notional amount					$ 500
Fair value loss	$ 24				$ 19
Forward Starting Swaps \| Net Interest Expense
Schedule of Investments [Line Items]
Derivative losses amortized to net interest expense		$ 9	$ 9	$ 10
Net losses expected to be recognized in next 12 months		9
Treasury Rate Locks
Schedule of Investments [Line Items]
Unamortized losses, Treasury rate locks		17	18
Treasury Rate Locks \| Net Interest Expense
Schedule of Investments [Line Items]
Derivative losses amortized to net interest expense		1	1	1
Net losses expected to be recognized in next 12 months		1
Net Investment Hedge
Schedule of Investments [Line Items]
Gain (loss) on net investment hedge		$ 136	$ 288	$ (479)