Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Accumulated Other Comprehensive Income (Loss) [Abstract]
Income tax effect included in accumulated other comprehensive income (loss) for other non-U.S. subsidiaries and equity investees	$ 0	$ 0	$ 1.1
Income tax benefit associated with Compensation - Retirement Benefits included in accumulated other comprehensive income (loss)	17.4	11.5	11.3
Income tax benefit associated with derivatives included in accumulated other comprehensive income (loss)	$ 0.6	$ 1.0	$ 1.1