Contingent Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Loss Contingency [Abstract]

Schedule of change in balance sheet position of product related liabilities

The table below summarizes the change in product related liabilities in the unaudited Condensed Consolidated Balance Sheet.

	Three Months Ended September 30				Nine Months Ended September 30
(Dollars in millions)	2021		2020		2021		2020
Reserve at beginning of the period	$	18	$	18	$	19	$	15
Change in reserve	2		2		4		8
Cash payments	(2)		(1)		(5)		(4)
Reserve at end of the period	$	18	$	19	$	18	$	19