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Consolidated Statement of Cash Flows - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Operating activities      
Net earnings (loss) $ 161 $ (425) $ (253)
Depreciation and amortization 599 719 798
Net gain on sale of assets (32) (54) (9)
Accretion of provisions 49 32 30
Decommissioning and restoration costs settled (35) (18) (18)
Deferred income tax expense (recovery) 127 (11) (85)
Unrealized (gain) loss from risk management activities 385 (34) 42
Unrealized foreign exchange (gain) loss (82) (24) 1
Provisions and contract liabilities 19 (41) 9
Asset impairment charges 9 648 84
Equity income, net of distributions from investments (4) (5) (1)
Other non-cash items (3) 40 15
Cash flow from operations before changes in working capital 1,193 827 613
Change in non-cash operating working capital (316) 174 89
Cash flow from operating activities 877 1,001 702
Investing activities      
Additions to property, plant and equipment (918) (480) (486)
Additions to intangibles assets (31) (9) (14)
Restricted cash 0 (1) (39)
Repayments (advances) in loan receivable 18    
Repayments (advances) in Loan receivable   (3) (5)
Acquisitions, net of cash acquired (10) (120) (32)
Investments (10) 0 (102)
Proceeds on sale of Pioneer Pipeline 0 128 0
Proceeds on sale of property, plant and equipment 66 39 6
Realized gain (loss) on financial instruments 27 (6) 2
Decrease in finance lease receivable 46 41 17
Other 45 (16) (12)
Change in non-cash investing working capital balances 26 (45) (22)
Cash flow used in investing activities (741) (472) (687)
Financing activities      
Net increase (decrease) in borrowings under credit facilities 449 (114) (106)
Repayment of long-term debt (621) (92) (489)
Issuance of long-term debt 532 173 753
Issuance of exchangeable securities 0 0 400
Repurchase of common shares under NCIB (52) (4) (57)
Proceeds on issuance of common shares 3 8 0
Realized gains on financial instruments 42 3 3
Distributions paid to subsidiaries' non-controlling interests (187) (156) (97)
Decrease in lease liabilities (9) (8) (25)
Financing fees and other (13) (4) (11)
Change in non-cash financing working capital balances (2) (1) (13)
Cash flow from (used in) financing activities 45 (282) 272
Cash flow from operating, investing and financing activities 181 247 287
Effect of translation on foreign currency cash 6 (3) 5
Increase in cash and cash equivalents 187 244 292
Cash and cash equivalents, beginning of year 1,134 947 703
Cash and cash equivalents, end of year 1,134 947 703
Supplemental cash flow information      
Cash taxes paid 67 57 36
Cash interest paid 229 220 201
Common shares      
Financing activities      
Dividends paid (54) (48) (47)
Preferred shares      
Financing activities      
Dividends paid $ (43) $ (39) $ (39)