Casualty, Environmental and Other Reserves (Tables)

3 Months Ended

Mar. 31, 2020

Casualty, Environmental and Other Reserves [Abstract]

Schedule of Casualty, Environmental and Other Reserves

Casualty, environmental and other reserves are provided for in the consolidated balance sheets as shown in the table below.

	March 31, 2020						December 31, 2019
(Dollars in millions)	Current		Long-term		Total		Current		Long-term		Total
Casualty:
Personal Injury	$	42	$	85	$	127	$	42	$	87	$	129
Occupational	6		56		62		6		52		58
Total Casualty	48		141		189		48		139		187
Environmental	31		46		77		31		43		74
Other	20		23		43		21		23		44
Total	$	99	$	210	$	309	$	100	$	205	$	305