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Consolidated Statement of Cash Flows - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating activities      
Net earnings (loss) $ (425) $ (253) $ 176
Depreciation and amortization 719 798 709
Net gain on sale of assets (54) (9) (45)
Accretion of provisions 32 30 23
Decommissioning and restoration costs settled (18) (18) (34)
Deferred income tax recovery (11) (85) (18)
Unrealized (gain) loss from risk management activities (34) 42 (32)
Unrealized foreign exchange (gain) loss (24) 1 13
Provisions (41) 9 13
Asset impairment charges 648 84 25
Equity income, net of distributions from investments (Note 10) (5) (1) 0
Other non-cash items 40 15 (102)
Cash flow from operations before changes in working capital 827 613 728
Change in non-cash operating working capital balances 174 89 121
Cash flow from operating activities 1,001 702 849
Investing activities      
Additions to property, plant and equipment (480) (486) (417)
Additions to intangibles (9) (14) (14)
Restricted cash (1) (39) 34
Loan receivable (3) (5) (10)
Acquisitions, net of cash acquired (120) (32) (117)
Acquisition of investments (Note 10) 0 (102) 0
Investment in the Pioneer Pipeline 0 0 (83)
Proceeds on sale of Pioneer Pipeline 128 0 0
Proceeds on sale of property, plant and equipment 39 6 13
Realized gains (losses) on financial instruments (6) 2 3
Decrease in finance lease receivable 41 17 24
Other (16) (12) 23
Change in non-cash investing working capital balances (45) (22) 32
Cash flow used in investing activities (472) (687) (512)
Financing activities      
Net increase (decrease) in borrowings under credit facilities (114) (106) (119)
Repayment of long-term debt (92) (489) (96)
Issuance of long-term debt 173 753 166
Issuance of exchangeable securities 0 400 350
Repurchase of common shares under NCIB (4) (57) (68)
Proceeds on issuance of common shares 8 0 0
Realized gains on financial instruments 3 3 0
Distributions paid to subsidiaries' non-controlling interests (156) (97) (106)
Decrease in finance lease obligations (8) (25) (21)
Financing fees and other (4) (11) (35)
Change in non-cash financing working capital balances (1) (13) 0
Cash flow from (used in) financing activities (282) 272 (14)
Cash flow from operating, investing, and financing activities 247 287 323
Effect of translation on foreign currency cash (3) 5 (1)
Increase in cash and cash equivalents 244 292 322
Cash and cash equivalents, beginning of year 703 411 89
Cash and cash equivalents, end of year 947 703 411
Supplemental cash flow information      
Cash taxes paid 57 36 35
Cash interest paid 220 201 185
Common shares      
Financing activities      
Dividends paid (48) (47) (45)
Preferred shares      
Financing activities      
Dividends paid $ (39) $ (39) $ (40)