Casualty, Environmental and Other Reserves (Tables)

6 Months Ended

Jun. 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.

	June 30, 2023						December 31, 2022
(Dollars in millions)	Current		Long-term		Total		Current		Long-term		Total
Casualty:
Personal Injury	$	40	$	86	$	126	$	40	$	86	$	126
Occupational	7		59		66		10		58		68
Total Casualty	47		145		192		50		144		194
Environmental	44		116		160		53		108		161
Other	47		38		85		41		40		81
Total	$	138	$	299	$	437	$	144	$	292	$	436