Casualty, Environmental and Other Reserves (Tables)

3 Months Ended

Mar. 31, 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.

	March 31, 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	10		56		66		10		58		68
Total Casualty	50		143		193		50		144		194
Environmental	53		109		162		53		108		161
Other	48		35		83		41		40		81
Total	$	151	$	287	$	438	$	144	$	292	$	436