Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of Expected Benefits Payments

PENSION BENEFITS EXPECTED PAYMENTS (dollars in millions)	U.S.		Non-U.S.
2023	$	14	$	10
2024		16		11
2025		17		11
2026		19		11
2027		19		12
Years 2028-2032		94		74

Pension Plans, Defined Benefit

Schedule of Changes in Benefit Obligations and Plan Assets

CHANGES IN BENEFIT OBLIGATIONS AND PLAN ASSETS FOR THE YEARS ENDED DECEMBER 31

	U.S.						Non-U.S.
(Dollars in millions)	2022			2021			2022			2021
Benefit obligation at beginning of year	$	381		$	426		$	260		$	279
Service cost		—			8			9			12
Interest cost		12			10			6			5
Actuarial (gain) loss due to:
Change in discount rate		(111	)		(17	)		(65	)		(22	)
Experience		15			3			4			9
Other assumption changes		—			3			18			4
Benefits paid		(4	)		(4	)		(20	)		(8	)
Plan settlements/curtailments		(66	)		(48	)		(3	)		(2	)
Plan amendments		—			—			2			—
Other		—			—			—			(0	)
Translation difference		—			—			(19	)		(16	)
Benefit obligation at end of year	$	227		$	381		$	192		$	260
Fair value of plan assets at beginning of year	$	343		$	355		$	101		$	103
Actual return on plan assets		(75	)		25			(27	)		1
Company contributions		3			15			19			11
Benefits paid		(4	)		(4	)		(20	)		(8	)
Plan settlements		(66	)		(48	)		—			(2	)
Translation difference		—			—			(10	)		(2	)
Fair value of plan assets at end of year	$	201		$	343		$	63		$	101
Pension liability recognized in the balance sheet	$	26		$	38		$	128		$	159

Schedule of Components of Net Periodic Benefit Cost

COMPONENTS OF NET PERIODIC BENEFIT COST ASSOCIATED WITH THE DEFINED BENEFIT RETIREMENT PLANS FOR THE YEARS ENDED DECEMBER 31

	U.S.
(Dollars in millions)	2022			2021			2020
Service cost	$	—		$	8		$	8
Interest cost		12			10			12
Expected return on plan assets		(14	)		(18	)		(16	)
Amortization of actuarial loss		0			2			3
Settlement loss		6			5			7
Net periodic benefit cost	$	4		$	7		$	13

	Non-U.S.
(Dollars in millions)	2022			2021			2020
Service cost	$	9		$	12		$	12
Interest cost		6			5			6
Expected return on plan assets		(2	)		(2	)		(2	)
Amortization of prior service costs		1			0			0
Amortization of actuarial loss		1			1			2
Settlement/curtailment (gain) loss		(8	)		0			0
Net periodic benefit cost	$	7		$	17		$	19

Schedule of Components of Accumulated Other Comprehensive Income Before Tax

COMPONENTS OF ACCUMULATED OTHER COMPREHENSIVE LOSS BEFORE TAX AS OF DECEMBER 31

	U.S.				Non-U.S.
(Dollars in millions)	2022		2021		2022		2021
Net actuarial loss	$	22	$	35	$	18	$	30
Prior service cost		—		—		4		3
Total accumulated other comprehensive loss    recognized in the balance sheet	$	22	$	35	$	22	$	33

Schedule of Changes in Accumulated Other Comprehensive Income Before Tax

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS BEFORE TAX FOR THE YEARS ENDED DECEMBER 31

	U.S.						Non-U.S.
(Dollars in millions)	2022			2021			2022			2021
Total retirement benefit recognized in accumulated    other comprehensive loss at beginning of year	$	35		$	62		$	33		$	45
Net actuarial loss (gain)		(7	)		(19	)		(15	)		(8	)
Amortization or curtailment recognition of prior service credit (cost)		—			—			1			(0	)
Amortization or settlement recognition of net gain (loss)		(6	)		(7	)		5			(2	)
Translation difference		—			—			(2	)		(2	)
Total retirement benefit recognized in accumulated    other comprehensive loss at end of year	$	22		$	35		$	22		$	33

Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets

PENSION PLANS FOR WHICH ABO EXCEEDS THE FAIR VALUE OF PLAN ASSETS AS OF DECEMBER 31

	U.S.				Non-U.S.
(Dollars in millions)	2022		2021		2022		2021
Projected Benefit Obligation (PBO)	$	227	$	381	$	134	$	164
Accumulated Benefit Obligation (ABO)		227		381		102		132
Fair value of plan assets		201		343		2		4

Schedule of Assumptions Used

ASSUMPTIONS USED TO DETERMINE THE BENEFIT OBLIGATIONS AS OF DECEMBER 31

	U.S.				Non-U.S.1)
(% Weighted average / % Range)	2022		2021		2022	2021
Discount rate		5.41		2.77	0.75-5.40	0.25-3.20
Rate of increases in compensation level	n/a		n/a		2.00-5.00	1.80-4.00

ASSUMPTIONS USED TO DETERMINE THE NET PERIODIC BENEFIT COST FOR THE YEARS ENDED DECEMBER 31

	U.S.
(% Weighted average)	2022		2021		2020
Discount rate		2.77		2.37		3.25
Rate of increases in compensation level	n/a			2.65		2.65
Expected long-term rate of return on assets		5.05		5.05		5.05

	Non-U.S.1)
(% Range)	2022	2021	2020
Discount rate	0.25-3.20	0.25-2.70	0.25-2.70
Rate of increases in compensation level	1.80-4.00	1.80-4.00	2.00-5.00
Expected long-term rate of return on assets	1.70-2.20	1.40-2.25	1.50-2.25

1) The Non-U.S. weighted average plan ranges in the tables above represent significant plans only.

Schedule of Fair Value of Total Plan Assets

FAIR VALUE OF TOTAL PLAN ASSETS FOR THE YEARS ENDED DECEMBER 31

	U.S.		U.S.				Non-U.S.
ASSETS CATEGORY (% Weighted average)	Target allocation		2022		2021		2022		2021
Equity securities %		40		23		42		0		0
Debt instruments %		60		76		57		60		76
Other assets %		—		1		1		40		24
Total %		100		100		100		100		100

Schedule of Fair Value of Company's Plan Assets

The following table summarizes the fair value of the Company’s U.S. and non-U.S. defined benefit pension plan assets:

	Fair value measurement at December 31,
(Dollars in millions)	2022		2021
Assets
Non-U.S. Bonds
Corporate	$	38	$	77
Insurance Contracts		14		16
Other Investments		11		8
Assets at fair value Level 2		63		101
Investments measured at net asset value    (NAV):
Common collective trusts		201		343
Total	$	264	$	444