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Property, Plant And Equipment (Narrative) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Property, Plant And Equipment
Depreciation expense	$ 106.1	$ 106.5	$ 212.3	$ 216.5
Book value of assets held for sale	$ 7.3		$ 7.3		$ 6.5

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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