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SUPPLEMENTAL CASH FLOW INFORMATION - Reconciliation of movements of liabilities to cash flows (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Short-Term Debt |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities |  |
Liabilities arising from financing activities at beginning of period | $ 3,566 | $ 2,155
Changes from financing cash flows: |  |
Net issuance (reduction) of commercial paper | (2,256) | 1,445
Realized foreign exchange (gains) and losses | (79) |
Non-cash changes: |  |
Unrealized foreign exchange losses and (gains) | 53 | (34)
Liabilities arising from financing activities at end of period | 1,284 | 3,566
Current Portion of Long-Term Lease Liabilities |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities |  |
Liabilities arising from financing activities at beginning of period | 272 | 310
Changes from financing cash flows: |  |
Lease liability payments | (325) | (335)
Non-cash changes: |  |
Reclassification of lease obligations | 363 | 297
Liabilities arising from financing activities at end of period | 310 | 272
Long-Term Lease Liabilities |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities |  |
Liabilities arising from financing activities at beginning of period | 2,636 | 2,621
Non-cash changes: |  |
Reclassification of lease obligations | (363) | (297)
Lease derecognition | (41) |
New lease liabilities | 308 | 312
Liabilities arising from financing activities at end of period | 2,540 | 2,636
Current Portion of Long-Term Debt |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities |  |
Liabilities arising from financing activities at beginning of period | 1,413 |
Changes from financing cash flows: |  |
Repayment of long-term debt | (2,451) |
Loss on extinguishment of long-term debt | 80 |
Realized foreign exchange (gains) and losses | 128 |
Other | 25 |
Non-cash changes: |  |
Unrealized foreign exchange losses and (gains) | (47) | (20)
Reclassification of debt | 1,083 | 1,433
Liabilities arising from financing activities at end of period | 231 | 1,413
Long-Term Debt |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities |  |
Liabilities arising from financing activities at beginning of period | 13,812 | 12,884
Changes from financing cash flows: |  |
Gross proceeds from issuance of long-term debt | 1,446 | 2,651
Debt issuance costs | (23) | (17)
Non-cash changes: |  |
Unrealized foreign exchange losses and (gains) | (168) | (258)
Reclassification of debt | (1,083) | (1,433)
Deferred financing costs | 5 | (15)
Liabilities arising from financing activities at end of period | 13,989 | 13,812
Partnership Liability |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities |  |
Liabilities arising from financing activities at beginning of period | 436 | 455
Changes from financing cash flows: |  |
Distributions to non-controlling interest | (9) | (10)
Non-cash changes: |  |
Reassessment of partnership liability |  | (9)
Liabilities arising from financing activities at end of period | 427 | 436
Dividends Payable |  |
Changes from financing cash flows: |  |
Dividends paid on common shares | 1,550 | (1,670)
Non-cash changes: |  |
Dividends declared on common shares | $ (1,550) | $ 1,670

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