Commitments and Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

Summary of Recent Approximate Asbestos Claims Activity

A summary of recent approximate asbestos claims activity follows. Because claims are often filed and disposed of by dismissal or settlement in large numbers, the amount and timing of settlements and the number of open claims during a particular period can fluctuate significantly.

	Three Months Ended			Year Ended
(Dollars in millions)	March 31, 2020			December 31, 2019
Pending claims, beginning of period		39,600			43,100
New claims filed		300			1,500
Claims settled/dismissed		(700	)		(5,000	)
Pending claims, end of period		39,200			39,600
Payments(1)	$	2		$	22

(1) Represents cash payments made during the period by us and our insurers on asbestos litigation defense and claim resolution.