The components of net pension and postretirement benefits other than pensions (“OPEB”) costs for the quarters and six months ended June 30, 2026 and 2025 are shown below:


	Quarter Ended June 30,				Six Months Ended June 30,

(Millions of dollars)	2026		2025		2026		2025
Amount recognized in Operating Profit
Service cost	$	20	$	21	$	40	$	41
Amount recognized in Net pension and OPEB cost (benefit), excluding service cost
Interest cost	89		89		178		175
Expected return on plan assets	(138)		(140)		(277)		(274)
Net amortization and deferral (gain) loss	(4)		(8)		(8)		(16)



Total amount recognized in Net pension and OPEB cost (benefit), excluding service cost	(53)		(59)		(107)		(115)
Net periodic benefit cost (benefit)	$	(33)	$	(38)	$	(67)	$	(74)