Segment Results (Reconciliation Of Total Consolidated Operating Income To Earnings From Continuing Operations Before Income Taxes) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Results [Abstract]
Total consolidated operating income	$ 47.0	$ 42.7
Interest expense	33.2	11.2
Other non-operating income	(1.3)	(0.8)
Earnings from continuing operations before income taxes	$ 15.1	$ 32.3