Pensions and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2022

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Benefit Cost

Net periodic pension and other postretirement benefit (income)/cost for the three months ended March 31, 2022 and 2021 was as follows:

	Pension		Other Postretirement Benefits
	Three Months Ended March 31		Three Months Ended March 31
($ in millions)	2022	2021	2022	2021
Service cost	$2	$3	$3	$3
Interest cost	19	16	4	3
Expected return on plan assets	(36)	(38)	—	—
Amortization of actuarial losses	8	10	4	6
Amortization of prior service credit	—	—	(3)	(14)
Net periodic benefit (income)/cost	($7)	($9)	$8	($2)

Defined Contribution Plan Disclosures

	Three Months Ended March 31
($ in millions)	2022	2021
Non-U.S. defined benefit pension mandatory contributions	$1	$1