Casualty, Environmental and Other Reserves (Tables)

9 Months Ended

Sep. 30, 2023

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, 2023						December 31, 2022
(Dollars in millions)	Current		Long-term		Total		Current		Long-term		Total
Casualty:
Personal Injury	$	40	$	87	$	127	$	40	$	86	$	126
Occupational	7		60		67		10		58		68
Total Casualty	47		147		194		50		144		194
Environmental	40		117		157		53		108		161
Other	46		38		84		41		40		81
Total	$	133	$	302	$	435	$	144	$	292	$	436