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v3.23.1

DEBT - Narrative (Details) $ in Millions |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 15, 2023 USD ($) | Mar. 31, 2023 CAD ($) | Feb. 28, 2023 CAD ($) | Dec. 31, 2022 CAD ($)
Line of Credit Facility [Line Items] |  |  |  |
Commitment fee percentage |  | 0.10% |  |
Long-term debt |  | $ 71,740,000,000 |  | $ 72,939,000,000
Long-term debt, fair value adjustment |  | 588,000,000 |  | 608,000,000
Amortization of fair value adjustment |  | 11,000,000 |  |
Commercial paper and credit facility draws |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Long-term debt |  | 9,000,000,000 |  | 10,500,000,000
Fixed-to-floating subordinated term notes | Subordinated term notes |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Subordinated debt |  | 10,300,000,000 |  |
Five-year Callable Fixed To Floating Rate Subordinated Notes | Subsequent event | Long-Term Debt |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Long-term debt, amount outstanding | $ 600 |  |  |
Interest rate (as a percent) | 6.38% |  |  |
Revolving credit facility | 364-day extendible credit facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Amount of credit facility |  | 2,500,000,000 | $ 2,000,000,000 |
Uncommitted demand credit facilities |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Amount of credit facility |  | 1,300,000,000 |  | 1,300,000,000
Unutilized amount of facility |  | $ 720,000,000 |  | $ 689,000,000

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