Employee retirement benefits

3 Months Ended

Mar. 31, 2020

Employee retirement benefits

6.  Employee retirement benefits

The components of net benefit cost were as follows:

	Three Months     to March 31
millions of Canadian dollars	2020			2019
Pension benefits:
Current service cost		76			57
Interest cost		77			81
Expected return on plan assets		(98	)		(87	)
Amortization of prior service cost		4			-
Amortization of actuarial loss (gain)		38			37
Net periodic benefit cost		97			88
Other postretirement benefits:
Current service cost		6			4
Interest cost		6			5
Amortization of actuarial loss (gain)		3			-
Net periodic benefit cost		15			9