Long-Term Debt (Schedule Of Revolving Credit Facility) (Details) (North America [Member], Revolving Credit Facility [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Outstanding borrowings	$ 34.9	$ 0
Undrawn availability	336.0	371.5
Interest rate	2.90%	0.00%
Outstanding letters of credit	20.2	18.5
Original issuance	Jul. 31, 2011	Nov. 30, 2003
Maturity date	Jul. 31, 2016
Parent Company [Member]
Outstanding borrowings	$ 34.9	$ 0