Pensions and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2022

Retirement Benefits [Abstract]

Net Periodic Benefit Cost

Net periodic pension benefit income and other postretirement benefit (income)/cost for the three and six months ended June 30, 2022 and 2021 was as follows:

	Pension
	Three Months Ended June 30		Six Months Ended June 30
($ in millions)	2022	2021	2022	2021
Service cost	$2	$2	$4	$5
Interest cost	18	16	37	32
Expected return on plan assets	(35)	(38)	(71)	(76)
Amortization of actuarial losses	9	10	17	20
Net periodic benefit income	($6)	($10)	($13)	($19)

	Other Postretirement Benefits
	Three Months Ended June 30		Six Months Ended June 30
($ in millions)	2022	2021	2022	2021
Service cost	$1	$3	$4	$6
Interest cost	4	4	8	7
Amortization of actuarial losses	2	4	6	10
Amortization of prior service credit	(2)	(13)	(5)	(27)
Net periodic benefit cost/(income)	$5	($2)	$13	($4)

Defined Contribution Plan Disclosures

	Three Months Ended June 30		Six Months Ended June 30
($ in millions)	2022	2021	2022	2021
Non-U.S. defined benefit pension mandatory contributions	$1	$1	$2	$2