Identification of the specific currency to be purchased upon settlement or exercise of the foreign currency derivative.

No definition available.

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- Definition

Identification of the specific currency to be sold upon settlement or exercise of the foreign currency derivative.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- 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
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- Definition

General discussion of the entity's activities involving foreign currency derivatives not designated as hedging instruments.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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-Section 50
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Derivative and Financial Instruments - FX Notional (Details) £ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2020 CAD ($)	Sep. 30, 2020 GBP (£)	Mar. 31, 2020 CAD ($) $ / $	Dec. 31, 2019 CAD ($)	Dec. 31, 2019 GBP (£)	Jun. 30, 2019 CAD ($) $ / $
Notional Disclosures [Abstract]
Description of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Activities	In the second quarter of 2019, we entered into foreign currency exchange contracts to sell CAD 1.35 billion at CAD 0.748 against the USD. In the first quarter of 2020, we entered into forward currency exchange contracts to buy CAD 0.9 billion at CAD 0.718 against the USD
Buy British Pound Sell Euro [Member]
Notional Disclosures [Abstract]
Net notional position of foreign currency exchange derivatives \| £		£ 3			£ 4
Sell Canadian dollar, buy U.S. dollar [Member]
Notional Disclosures [Abstract]
Net notional position of foreign currency exchange derivatives	$ 416			$ 1,337
Sell Canadian dollar, buy U.S. dollar [Member] \| Nondesignated [Member]
Notional Disclosures [Abstract]
Net notional position of foreign currency exchange derivatives						$ 1,350
Derivative, Currency Bought	USD
Derivative, Currency Sold	CAD
Derivative, Forward Exchange Rate \| $ / $						0.748
Buy CAD, Sell USD [Member] \| Nondesignated [Member]
Notional Disclosures [Abstract]
Net notional position of foreign currency exchange derivatives			$ 900
Derivative, Currency Bought	CAD
Derivative, Currency Sold	USD
Derivative, Forward Exchange Rate \| $ / $			0.718