PLANTS, EQUIPMENT AND FACILITIES (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Plants, Equipment and Facilities, at Cost

December 31,	2012		2011
Land and land improvements	$	25.2	$	21.0
Buildings		188.9		196.3
Machinery and equipment		795.0		671.0
Construction in progress		301.3		221.5
Plants, equipment and facilities, at cost	$	1,310.4	$	1,109.8

Summary of Depreciable Lives of Assets

Following are the depreciable lives for our assets under the composite and straight line methods:

	2012		Prior To 2012
Category	Straight Line Depreciation		Composite Depreciation		Straight Line Depreciation
Buildings		10-38 years		31 years		20-33 years
Machinery and equipment		5-30 years		5-18 years		3-15 years