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LEASES (Tables)

12 Months Ended

Dec. 31, 2020

Summary of activity related to lease liabilities

Below is a summary of the activity related to our lease liabilities for the twelve months ended December 31, 2020. Certain of our lease liabilities are secured by the underlying right-of-use assets; the underlying right-of-use assets have a net carrying amount of $240 million as at December 31, 2020 (2019 - $114 million).


	Years ended December 31
(In millions of dollars)	2020	2019

Lease liabilities, beginning of year	1,725	1,545
Net additions	320	335
Interest expense on lease liabilities	70	61
Interest payments on lease liabilities	(67)	(49)
Principal payments of lease liabilities	(213)	(167)


Lease liabilities, end of year	1,835	1,725

Current liability	278	230
Long-term liability	1,557	1,495

Lease liabilities	1,835	1,725