ASSET RETIREMENT OBLIGATIONS

12 Months Ended

Dec. 31, 2020

Asset Retirement Obligation Disclosure [Abstract]

ASSET RETIREMENT OBLIGATIONS

ASSET RETIREMENT OBLIGATIONS

Our ARO relate mostly to the retirement of pipelines, renewable power generation assets, obligations related to right-of way agreements and contractual leases for land use.

The liability for the expected cash flows as recognized in the financial statements reflected discount rates ranging from 1.8% to 9.0%.

A reconciliation of movements in our ARO liabilities is as follows:

December 31,	2020	2019
(millions of Canadian dollars)
Obligations at beginning of year	520	989
Liabilities disposed	—	(59)
Liabilities incurred	—	15
Liabilities settled	(30)	(12)
Change in estimate and other	—	(417)
Foreign currency translation adjustment	(6)	(18)
Accretion expense	12	22
Obligations at end of year	496	520
Presented as follows:
Accounts payable and other	56	7
Other long-term liabilities	440	513
	496	520