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Comprehensive Income (Loss) (Narrative) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Tax related to fair value of derivatives	$ 0.3	$ 0.1	$ 0.3
Tax related to adjustment for net periodic pension and postretirement expense	35.9	1.4	39.9	2.8
Maximum [Member]
Tax related to fair value of derivatives				$ 0.1

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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- Definition

Tax effect on the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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