Casualty, Environmental and Other Reserves (Tables)

9 Months Ended

Sep. 30, 2024

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.

	September 30, 2024						December 31, 2023
(Dollars in Millions)	Current		Long-term		Total		Current		Long-term		Total
Casualty:
Personal Injury	$	51	$	91	$	142	$	45	$	83	$	128
Occupational	11		58		69		7		60		67
Total Casualty	62		149		211		52		143		195
Environmental	36		111		147		41		113		154
Other	49		49		98		51		40		91
Total	$	147	$	309	$	456	$	144	$	296	$	440