Restructuring Activities (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Restructuring Activities (Textual) [Abstract]
Amount of stock appreciation rights that were issued	$ 47.3
Restructuring Activities (Additional Textual) [Abstract]
Recognized associated costs	5.8
Integration and optimization program [Member]
Restructuring Activities (Textual) [Abstract]
Expected completed date of restructuring program	Dec. 31, 2014
Asset impairments charges and associated costs	5
Amount of stock appreciation rights that were issued	7.0
Cumulative cash payments	55
Restructuring Expected Accrual to Pay	34
Restructuring Expected Accrual Remaining to Pay	$ 11