Pension and Other Postretirement Benefits

9 Months Ended

Jan. 31, 2021

Retirement Benefits [Abstract]

Pension and Other Postretirement Benefits

Pension and Other Postretirement Benefits

The following table shows the components of the net cost of pension and other postretirement benefits recognized for our U.S. benefit plans. Information about similar international plans is not presented due to immateriality.

	Three Months Ended				Nine Months Ended
	January 31,				January 31,
(Dollars in millions)	2020		2021		2020		2021
Pension Benefits:
Service cost	$	6	$	7	$	18	$	20
Interest cost	8		6		24		19
Expected return on plan assets	(12)		(12)		(35)		(35)
Amortization of:
Prior service cost (credit)	—		—		1		1
Net actuarial loss	5		7		14		20
Net cost	$	7	$	8	$	22	$	25
Other Postretirement Benefits:
Service cost	$	—	$	—	$	1	$	1
Interest cost	1		1		1		1
Amortization of prior service cost (credit)	(1)		(1)		(2)		(2)
Net cost	$	—	$	—	$	—	$	—