Other Expense, net (Details Textual) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Other Expense Net (Textual) [Abstract]
Initial term of credit facility		2 years
Amount of Guarantee Obligations Given by Joint Ventures	$ 20
Provisions for bad debt on receivables due from joint venture	2
Other than temporary impairment, gross	26
Other than temporary impairment, net	18
Provisions for bad debt on receivables due from joint venture and other than temporary impairment net of tax per share	$ 0.09
Equity method investment other than temporary impairment previously impaired	4
Written down of the carrying value of the investment	$ 0	$ 0