Postretirement benefits

6 Months Ended

Jun. 30, 2019

Retirement Benefits [Abstract]

Compensation and Employee Benefit Plans [Text Block]

Postretirement benefits

The components of net pension and other postretirement benefit costs (benefits) reflected in Net income in the Consolidated statements of operations were as follows:

	Pension Benefit Plans												Other Postretirement Benefit Plans
	2019						2018						2019			2018
Three Months Ended June 30	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
(in millions of U.S. dollars)
Service cost	$	13		$	2		$	15		$	3		$	—		$	—
Non-service cost:
Interest cost	29			7			27			7			1			1
Expected return on plan assets	(48		)	(11		)	(53		)	(13		)	(1		)	(1		)
Amortization of net actuarial loss	—			1			—			—			—			—
Amortization of prior service cost	—			—			—			—			(20		)	(22		)
Curtailments	—			—			—			—			—			(1		)
Settlements	—			—			1			—			—			—
Total non-service (benefit) cost	(19		)	(3		)	(25		)	(6		)	(20		)	(23		)
Net periodic (benefit) cost	$	(6	)	$	(1	)	$	(10	)	$	(3	)	$	(20	)	$	(23	)

	Pension Benefit Plans												Other Postretirement Benefit Plans
	2019						2018						2019			2018
Six Months Ended June 30	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
(in millions of U.S. dollars)
Service cost	$	25		$	5		$	29		$	6		$	—		$	—
Non-service cost:
Interest cost	59			14			53			14			2			2
Expected return on plan assets	(95		)	(22		)	(106		)	(26		)	(2		)	(2		)
Amortization of net actuarial loss	—			1			—			—			—			—
Amortization of prior service cost	—			—			—			—			(40		)	(43		)
Curtailments	—			—			—			—			—			(1		)
Settlements	—			—			1			—			—			—
Total non-service (benefit) cost	(36		)	(7		)	(52		)	(12		)	(40		)	(44		)
Net periodic (benefit) cost	$	(11	)	$	(2	)	$	(23	)	$	(6	)	$	(40	)	$	(44	)

The service and non-service cost components of net periodic (benefit) cost reflected in the Consolidated statements of operations were as follows:

	Pension Benefit Plans						Other Postretirement Benefit Plans
Three Months Ended June 30	2019			2018			2019			2018
(in millions of U.S. dollars)
Service Cost:
Losses and loss expenses	$	1		$	1		$	—		$	—
Administrative expenses	14			17			—			—
Total service cost	15			18			—			—
Non-service Cost:
Losses and loss expenses	(2		)	(2		)	(2		)	(3		)
Administrative expenses	(20		)	(29		)	(18		)	(20		)
Total non-service (benefit) cost	(22		)	(31		)	(20		)	(23		)
Net periodic (benefit) cost	$	(7	)	$	(13	)	$	(20	)	$	(23	)

	Pension Benefit Plans						Other Postretirement Benefit Plans
Six Months Ended June 30	2019			2018			2019			2018
(in millions of U.S. dollars)
Service Cost:
Losses and loss expenses	$	3		$	3		$	—		$	—
Administrative expenses	27			32			—			—
Total service cost	30			35			—			—
Non-service Cost:
Losses and loss expenses	(4		)	(5		)	(4		)	(4		)
Administrative expenses	(39		)	(59		)	(36		)	(40		)
Total non-service (benefit) cost	(43		)	(64		)	(40		)	(44		)
Net periodic (benefit) cost	$	(13	)	$	(29	)	$	(40	)	$	(44	)