Inventories

12 Months Ended

Dec. 31, 2023

Inventory Disclosure [Abstract]

Inventories

7. Inventories

(Dollars in millions)	December 31,
	2023			2022			2021
Raw material	$	457		$	445		$	395
Work in progress		347			350			283
Finished products		296			265			190
Inventories		1,100			1,060			867
Inventory reserve at beginning of year		(91	)		(91	)		(93	)
Reversal of (addition to) reserve		3			(6	)		(3	)
Translation difference		(0	)		5			5
Inventory reserve at end of year		(89	)		(91	)		(91	)
Total inventories, net of reserve	$	1,012		$	969		$	777