Employee separation charges (Tables)

9 Months Ended

Sep. 30, 2012

Employee separation charges [Abstract]

Summary of separation activity

The following table summarizes the 2011 and 2012 separation activity:

(Millions of dollars)
	Total
Liability balance at December 31, 2010	$	22
Increase in liability (separation charges)	$	112
Reduction in liability (payments and other adjustments)	(44		)
Liability balance at December 31, 2011	$	90
Increase in liability (separation charges)	$	57
Reduction in liability (payments and other adjustments)	(123		)
Liability balance at September 30, 2012	$	24