Environmental Matters, Litigation and Product Warranties (Tables)

9 Months Ended

Sep. 30, 2012

Warranty Accrual Rollforward

Below is a table that shows the activity in the warranty accrual accounts:

	Nine Months  Ended September 30,
	2012			2011
	(Millions)
Beginning Balance January 1,	$	26		$	33
Accruals related to product warranties		10			7
Reductions for payments made		(13	)		(13	)
Ending Balance September 30,	$	23		$	27