4. Product Warranty Liability (Notes)

6 Months Ended

Jun. 30, 2011

Product Warranty Liability [Abstract]

PRODUCT WARRANTY LIABILITY

We warrant certain equipment against defects in design, materials and workmanship, generally for a period of one year. Upon delivery of that equipment, we establish, as part of Cost of goods sold, a provision for the expected costs of such warranty based on historical experience, specific warranty terms and customer feedback. A review is performed on a quarterly basis to assess the adequacy of our warranty accrual.

Components of the warranty accrual, included in Other current liabilities and Other long-term liabilities in the Condensed Consolidated Balance Sheets, were as follows (in millions):





December 31, 2010	$	18.3
Provision for warranty	9.7
Actual warranty costs	(10.0		)
June 30, 2011	$	18.0