Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2013

Warranty Reserve Activity

The following table identifies the activity relating to the warranty reserve for the three months ended March 31:

In millions	2013			2012
Warranty reserve liability
Beginning balance at January 1	$	8		$	6
Provisions for warranties issued		3			4
Settlements (in cash or in kind)		(4	)		(3	)
Balance at March 31	$	7		$	7