PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Schedule of net benefit costs recognized

	Three months ended March 31,
	2019		2018
(millions of Canadian dollars)
Service cost	51		65
Interest cost	51		45
Expected return on plan assets	(84	)	(82	)
Amortization of actuarial loss	8		7
Amortization of prior service costs	(1	)	(1	)
Net periodic benefit costs	25		34