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SUPPLEMENTAL CASH FLOW INFORMATION | 12 Months Ended
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Dec. 31, 2020
SUPPLEMENTAL CASH FLOW INFORMATION |
SUPPLEMENTAL CASH FLOW INFORMATION | 13. Supplemental Cash Flow Information The (increase) decrease in non-cash working capital is comprised of:
($ millions) |  | 2020 |  | 2019 |  |
Accounts receivable |  | 954 |  | (1 099 | ) |
Inventories |  | 121 |  | (628 | ) |
Accounts payable and accrued liabilities |  | (1 472 | ) | 1 317 |  |
Current portion of provisions |  | (11 | ) | (14 | ) |
Income taxes payable (net) |  | (1 350 | ) | 436 |  |
|  | (1 758 | ) | 12 |  |
Relating to: |  |  |  |  |  |
| Operating activities |  | (1 201 | ) | (397 | ) |
| Investing activities |  | (557 | ) | 409 |  |
|  | (1 758 | ) | 12 |  |
Reconciliation of movements of liabilities to cash flows arising from financing activities:
($ millions) |  | Short-Term Debt |  | Current Portion of Long-Term Lease Liabilities |  | Long-Term Lease Liabilities |  | Current Portion of Long-Term Debt |  | Long-Term Debt |  | Partnership Liability |  | Dividends Payable |  |
At December 31, 2018 |  | 3 231 |  | — |  | — |  | 229 |  | 13 890 |  | 477 |  | — |  |
Changes from financing cash flows: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net repayment of commercial paper |  | (982 | ) | — |  | — |  | — |  | — |  | — |  | — |  |
| Gross proceeds from issuance of long-term debt |  | — |  | — |  | — |  | — |  | 750 |  | — |  | — |  |
| Debt issuance costs |  | — |  | — |  | — |  | — |  | (5 | ) | — |  | — |  |
| Repayment of long-term debt |  | — |  | — |  | — |  | (188 | ) | — |  | — |  | — |  |
| Realized foreign exchange losses |  | — |  | — |  | — |  | 7 |  | — |  | — |  | — |  |
| Dividends paid on common shares |  | — |  | — |  | — |  | — |  | — |  | — |  | (2 614 | ) |
| Payments of lease liabilities |  | — |  | (307 | ) | — |  | — |  | — |  | — |  | — |  |
| Distributions to non-controlling interest |  | — |  | — |  | — |  | — |  | — |  | (7 | ) | — |  |
Non-cash changes: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Dividends declared on common shares |  | — |  | — |  | — |  | — |  | — |  | — |  | 2 614 |  |
| Unrealized foreign exchange gains |  | (94 | ) | — |  | — |  | (10 | ) | (520 | ) | — |  | — |  |
| Reclassification of debt to lease obligations |  | — |  | — |  | 1 260 |  | (38 | ) | (1 222 | ) | — |  | — |  |
| Reclassification of lease obligations |  | — |  | 617 |  | (617 | ) | — |  | — |  | — |  | — |  |
| Deferred financing costs |  | — |  | — |  | — |  | — |  | (9 | ) | — |  | — |  |
| Reassessment of partnership liability |  | — |  | — |  | — |  | — |  | — |  | (15 | ) | — |  |
| New leases |  | — |  | — |  | 1 978 |  | — |  | — |  | — |  | — |  |
At December 31, 2019 |  | 2 155 |  | 310 |  | 2 621 |  | — |  | 12 884 |  | 455 |  | — |  |
Changes from financing cash flows: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Net issuance of commercial paper |  | 1 445 |  | — |  | — |  | — |  | — |  | — |  | — |  |
| Gross proceeds from issuance of long-term debt |  | — |  | — |  | — |  | — |  | 2 651 |  | — |  | — |  |
| Debt issuance costs |  | — |  | — |  | — |  | — |  | (17 | ) | — |  | — |  |
| Dividends paid on common shares |  | — |  | — |  | — |  | — |  | — |  | — |  | (1 670 | ) |
| Lease liability payments |  | — |  | (335 | ) | — |  | — |  | — |  | — |  | — |  |
| Distributions to non-controlling interest |  | — |  | — |  | — |  | — |  | — |  | (10 | ) | — |  |
Non-cash changes: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Dividends declared on common shares |  | — |  | — |  | — |  | — |  | — |  | — |  | 1 670 |  |
| Unrealized foreign exchange gains |  | (34 | ) | — |  | — |  | (20 | ) | (258 | ) | — |  | — |  |
| Reclassification of debt |  | — |  | — |  | — |  | 1 433 |  | (1 433 | ) | — |  | — |  |
| Reclassification of lease obligations |  | — |  | 297 |  | (297 | ) | — |  | — |  | — |  | — |  |
| Deferred financing costs |  | — |  | — |  | — |  | — |  | (15 | ) | — |  | — |  |
| Reassessment of partnership liability |  | — |  | — |  | — |  | — |  | — |  | (9 | ) | — |  |
| New leases |  | — |  | — |  | 312 |  | — |  | — |  | — |  | — |  |
At December 31, 2020 |  | 3 566 |  | 272 |  | 2 636 |  | 1 413 |  | 13 812 |  | 436 |  | — |  |

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