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ASSET RETIREMENT OBLIGATIONS (Tables)
12 Months Ended
Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Reconciliation of Movements in The Company's ARO
A reconciliation of movements in our ARO liabilities is as follows:

December 31,20242023
(millions of Canadian dollars)
Obligations at beginning of year
493 488 
Liabilities acquired
185 
Liabilities incurred
3 — 
Liabilities settled
(139)(23)
Change in estimate and other
51 
Foreign currency translation adjustment
40 (6)
Accretion expense
33 28 
Obligations at end of year
666 493 
Presented as follows:
Other current liabilities (Note 16)
120 136 
Other long-term liabilities
546 357 
666 493