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Other (Income) Expense
6 Months Ended
Jun. 30, 2021
Other Income and Expenses [Abstract]  
Other Income and Expenses Other expense (income)
For the three months ended June 30For the six months ended June 30
(in millions of Canadian dollars)2021202020212020
Foreign exchange (gain) loss on debt and lease liabilities$(52)$(86)$(85)$129 
Other foreign exchange (gains) losses(3)(2)(4)
Acquisition-related costs (Note 10)209 — 212 — 
Other3 (1)4 — 
Other expense (income)$157 $(86)$129 $125