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		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Results [Abstract]
Total consolidated operating income	$ 67.6	$ 77.6	$ 114.6	$ 120.3
Interest expense	11.8	14.4	45.0	25.6
Other non-operating expense	0.7	0.3	0.7	0.3
Other non-operating income	(1.4)	(0.7)	(2.7)	(1.5)
Earnings from continuing operations before income taxes	$ 56.5	$ 63.6	$ 71.6	$ 95.9