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Equity (Details Textual) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Equity (Textual) [Abstract]
Pension and postretirement liability adjustment, Tax	$ 16.4
Dividend per share	$ 0.46

Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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