Commitments and Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Summary of 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, 2017			December 31, 2016
Pending claims, beginning of period	64,400			67,400
New claims filed	600			1,900
Claims settled/dismissed	(3,300		)	(4,900		)
Pending claims, end of period	61,700			64,400
Payments (1)	$	2		$	20

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