XML 108 R32.htm IDEA: XBRL DOCUMENT v3.22.0.1
Change in non-cash working capital balances related to operations
12 Months Ended
Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]  
Change in non-cash working capital balances related to operations Change in non-cash working capital balances related to operations
(in millions of Canadian dollars)202120202019
Source (use) of cash:
Accounts receivable, net$32 $(61)$27 
Materials and supplies(14)(15)(8)
Other current assets24 (5)(24)
Accounts payable and accrued liabilities(108)(308)(21)
Change in non-cash working capital$(66)$(389)$(26)