XML 141 R123.htm IDEA: XBRL DOCUMENT
v3.25.0.1

FV Measurements (Hybrid Notes) (Narrative) (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Hybrid Instruments [Line Items] |  |
Hybrid Notes as a hedge of the foreign currency exposure | $ 1,200 | $ 1,200
Net investment in United States dollar denominated operations |  |
Hybrid Instruments [Line Items] |  |
Hybrid Notes as a hedge of the foreign currency exposure | 1,200 | 1,200
After-tax foreign currency gain (loss) | $ (139) | $ 38

X
- Definition Fair value as of the balance sheet date of hybrid instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 15 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480991/815-15-45-1 + Details
Name: | us-gaap_HybridInstrumentsAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | us-gaap_HybridInstrumentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the unrealized gain (loss) in earnings for the period from the increase (decrease) in fair value on hybrid instruments measured at fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-30 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 15 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480960/815-15-50-1 + Details
Name: | us-gaap_UnrealizedGainLossOnHybridInstrumentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_NetInvestmentHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |