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OTHER LONG-TERM LIABILITIES
 12 Months Ended
Dec. 31, 2022
Deferred Costs, Noncurrent [Abstract]  
OTHER LONG-TERM LIABILITIES OTHER LONG-TERM LIABILITIES
at December 3120222021
(millions of Canadian $)
Operating lease obligations (Note 10)
379 380 
Fair value of derivative contracts (Note 28)
151 47 
Employee post-retirement benefits (Note 27)
111 174 
Asset retirement obligations79 61 
Long-term contract liabilities (Note 5)
32 184 
Other265 213 
 1,017 1,059