Pensions and Other Benefits (Tables)

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

Net Periodic Benefit Cost for Defined Benefit Pension Plans and Other Benefits

Net periodic benefit costs for defined benefit pension plans and other benefits recognized in the three and nine months ended September 30, 2018 included the following components:

	For the three months ended September 30
	Pensions						Other benefits
(in millions of Canadian dollars)	2018			2017			2018		2017
Current service cost (benefits earned by employees)	$	30		$	26		$	3	$	3
Other components of net periodic benefit (recovery) cost:
Interest cost on benefit obligation	110			112			5		5
Expected return on fund assets	(239		)	(223		)	—		—
Recognized net actuarial loss	29			38			—		1
Amortization of prior service costs	(1		)	(1		)	—		—
Total other components of net periodic benefit (recovery) cost	(101		)	(74		)	5		6
Net periodic benefit (recovery) cost	$	(71	)	$	(48	)	$	8	$	9

	For the nine months ended September 30
	Pensions						Other benefits
(in millions of Canadian dollars)	2018			2017			2018		2017
Current service cost (benefits earned by employees)	$	90		$	77		$	9	$	9
Other components of net periodic benefit (recovery) cost:
Interest cost on benefit obligation	329			338			14		15
Expected return on fund assets	(716		)	(669		)	—		—
Recognized net actuarial loss	86			114			2		2
Amortization of prior service costs	(2		)	(3		)	—		—
Total other components of net periodic benefit (recovery) cost	(303		)	(220		)	16		17
Net periodic benefit (recovery) cost	$	(213	)	$	(143	)	$	25	$	26