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Investments
 12 Months Ended
Dec. 31, 2021
Investments, All Other Investments [Abstract]  
Investments Investments
(in millions of Canadian dollars)20212020
Rail investments accounted for on an equity basis(1)
$161 $150 
Other investments48 49 
Total investments$209 $199 
(1) Excludes investment in KCS (see Note 12).