Postretirement benefits (Tables)

3 Months Ended

Mar. 31, 2023

Schedule of Net Benefit Costs [Table Text Block]

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
	2023				2022				2023		2022
Three Months Ended March 31	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
(in millions of U.S. dollars)
Service cost	$	—	$	2	$	—	$	1	$	—	$	—
Non-service cost (benefit):
Interest cost	34		9		21		6		—		—
Expected return on plan assets	(56)		(12)		(71)		(11)		(1)		—
Amortization of net actuarial loss	—		—		—		—		—		—
Amortization of prior service cost	—		—		—		—		—		—

Settlements	—		—		—		—		—		—
Total non-service cost (benefit)	(22)		(3)		(50)		(5)		(1)		—
Net periodic benefit cost (benefit)	$	(22)	$	(1)	$	(50)	$	(4)	$	(1)	$	—

The line items in which the service cost and non-service cost (benefit) components of net periodic benefit cost (benefit) are included in the Consolidated statements of operations were as follows:


	Pension Benefit Plans				Other Postretirement Benefit Plans
Three Months Ended March 31	2023		2022		2023		2022
(in millions of U.S. dollars)
Service cost:
Losses and loss expenses	$	—	$	—	$	—	$	—
Administrative expenses	2		1		—		—
Total service cost	2		1		—		—
Non-service cost (benefit):
Losses and loss expenses	(2)		(5)		—		—
Administrative expenses	(23)		(50)		(1)		—
Total non-service cost (benefit)	(25)		(55)		(1)		—
Net periodic benefit cost (benefit)	$	(23)	$	(54)	$	(1)	$	—