Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

Changes in Issued and Treasury shares

There were no material changes in our ordinary shares issued as of December 31, 2021 and 2020.

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in our accumulated other comprehensive loss by component:

(Dollars in millions)	Currency Translation Adjustment		Defined Benefit Pension		Total
Balance at December 31, 2019	$	7	$	2	$	9
Other Comprehensive Income	(38)		(14)		(52)
Balance at December 31, 2020	$	(31)	$	(12)	$	(43)
Other Comprehensive Income	(5)		$	13	$	8
Balance at December 31, 2021	$	(36)	$	1	$	(35)