Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Net Pension and Postretirement Cost

Net pension cost included the following components for the three and six-month periods:

	Three Months Ended March 31,				Six Months Ended March 31,
(Millions of dollars)	2023		2022		2023		2022
Service cost	$	22	$	34	$	46	$	69
Interest cost	32		19		67		38
Expected return on plan assets	(35)		(46)		(73)		(94)
Amortization of prior service credit	(2)		(4)		(3)		(8)
Amortization of loss	15		15		32		31
Settlements	1		1		1		6
Net pension cost	$	34	$	18	$	70	$	42