Casualty, Environmental and Other Reserves (Tables)

9 Months Ended

Sep. 30, 2011

Casualty, Environmental and Other Reserves [Abstract]

Casualty, environmental and other reserves

Casualty, environmental and other reserves are considered critical accounting estimates that involve significant management judgments. They are provided for in the consolidated balance sheets as follows:

	September 30, 2011						December 31, 2010
(Dollars in millions)	Current		Long-term		Total		Current		Long-term		Total
Casualty:
Personal Injury	$	78	$	175	$	253	$	78	$	176	$	254
Occupational	10		34		44		10		30		40
Asbestos	9		58		67		9		72		81
Total Casualty	97		267		364		97		278		375
Separation	16		36		52		16		44		60
Environmental	55		31		86		37		70		107
Other	32		100		132		26		110		136
Total	$	200	$	434	$	634	$	176	$	502	$	678