Other Postretirement Employee Benefit Plans (Tables) - Other postretirement benefits

12 Months Ended

Dec. 31, 2020

Defined Benefit Plans and Other Post-Retirement Benefit Plans [Line Items]

Funded Status Of Pension Plans

The following sets forth the funded status of the domestic plans as of the most recent actuarial valuations using measurement dates as of December 31 ($ in millions):

	2020		2019
Change in benefit obligation:
Benefit obligation at beginning of year	$	(139)	$	(142)
Service cost	—		—
Interest cost	(4)		(5)
Actuarial gain (loss)	(15)		(4)
Retiree contributions	(2)		(2)
Benefits paid	12		14
Benefit obligation at end of year	(148)		(139)
Change in plan assets:
Fair value of plan assets	—		—
Funded status	$	(148)	$	(139)

Weighted Average Assumptions Used To Determine Benefit Obligations And Cost

Weighted average assumptions used to determine benefit obligations at date of measurement:

	2020		2019
Discount rate	2.1	%	3.1	%
Medical trend rate – initial	5.5	%	5.7	%
Medical trend rate – grading period	17 years		18 years
Medical trend rate – ultimate	4.5	%	4.5	%

Components of Net Periodic Pension Cost

Components of net periodic benefit (cost) ($ in millions):

	2020		2019
Service cost	$	—	$	—
Interest cost	(4)		(5)
Amortization of prior service credit	2		2
Amortization of net loss	(1)		—
Net periodic benefit (cost)	$	(3)	$	(3)

Disaggregation of Service Cost

The net periodic cost of the other postretirement employee benefit plans incurred during the years ended December 31, 2020, 2019 and 2018 are reflected in the following captions in the accompanying Consolidated Statements of Earnings ($ in millions):

	Year Ended December 31
	2020		2019		2018
Service cost:
Cost of sales	$	—	$	—	$	—
Selling, general and administrative expenses	—		—		(1)
Total service cost	—		—		(1)
Other net periodic pension costs:
Other income (expense), net	(3)		(3)		(2)
Total	$	(3)	$	(3)	$	(3)

Benefit Payments That Reflect Expected Future Service

The following sets forth benefit payments, which reflect expected future service, as appropriate, expected to be paid in the periods indicated ($ in millions):

2021	$	15
2022	14
2023	13
2024	12
2025	11
2026 - 2030	47