Pensions and Other Benefits (Tables)

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

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

	For the three months ended September 30
	Pensions						Other benefits
(in millions of Canadian dollars)	2016			2015			2016		2015
Current service cost (benefits earned by employees in the period)	$	26		$	31		$	2	$	3
Interest cost on benefit obligation	117			116			6		6
Expected return on fund assets	(211		)	(201		)	—		—
Recognized net actuarial loss	48			66			1		—
Amortization of prior service costs	(2		)	(2		)	—		—
Net periodic (recovery) benefit cost	$	(22	)	$	10		$	9	$	9

	For the nine months ended September 30
	Pensions						Other benefits
(in millions of Canadian dollars)	2016			2015			2016		2015
Current service cost (benefits earned by employees in the period)	$	79		$	95		$	8	$	9
Interest cost on benefit obligation	350			347			16		16
Expected return on fund assets	(634		)	(614		)	—		—
Recognized net actuarial loss	143			198			3		2
Amortization of prior service costs	(5		)	(5		)	—		—
Net periodic (recovery) benefit cost	$	(67	)	$	21		$	27	$	27