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Financial and Other Assets
 12 Months Ended
Dec. 31, 2020
Financial Instruments [Abstract]  
Financial and Other Assets Financial and Other Assets
(CAD$ in millions)December 31,
2020		December 31,
2019
Long-term receivables and deposits$289 $268 
Marketable equity and debt securities carried at fair value178 183 
Pension plans in a net asset position (Note 23(a))301 360 
Derivative assets77 28 
Long-term portion of inventories (Note 13)84 75 
Finite life intangibles309 162 
Other31 33 
$1,269 $1,109