v3.25.4
DEPRECIATION, AMORTIZATION AND ASSET REMOVAL COSTS (Tables)
12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment [Abstract]  
Summary of Depreciation and Amortization
Year ended December 31 (millions of dollars)
20252024
Depreciation of property, plant and equipment874 828 
Amortization of intangible assets89 81 
Amortization of regulatory assets3 11 
Depreciation and amortization966 920 
Asset removal costs145 146 
1,111 1,066