v3.25.4
FINANCE COSTS (Tables)
 12 Months Ended
Dec. 31, 2025
Finance Costs [Abstract]  
Schedule of finance cost
  Years ended December 31
(In millions of dollars)Note20252024
 
Interest on borrowings, net 1
1,954 2,022 
Interest on lease liabilities9 147 137 
Interest on post-employment benefits
27 (5)(5)
Gain on redemption of long-term debt 2
25 (151)— 
(Gain) loss on foreign exchange(45)222 
Change in fair value of derivative instruments17 (205)
Change in fair value of subsidiary equity derivative instruments 3
(9)— 
Capitalized interest(30)(36)
Deferred transaction costs and other165 160 
Total finance costs2,043 2,295 
1    Interest on borrowings, net includes interest on short-term borrowings and on long-term debt.
2    Reflects the net gain on the redemption of long-term debt purchased in 2025 (see note 25 for more information).
3    Reflects the change in fair value of derivatives entered into related to the network transaction (see note 19 for more information).