Income Taxes (Schedule Of The Reconciliation To U.S. Statutory Tax Rate) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Continuing operations tax at statutory rate		$ 77.2	$ 67.8	$ 25.6
State income tax expense, net of federal benefit		6.2	7.7	1.6
(Decrease) in valuation allowances on deferred domestic income tax assets		(0.7)	(0.8)	(2.2)
Increase in valuation allowances on deferred foreign income tax assets		14.9	14.7	14.9
Tax on foreign and foreign-source income		(8.2)	(2.8)	(4.4)
Permanent book/tax differences		(0.9)	0.6	1.1
Impact of heath care reform legislation on Medicare Part D subsidy	22.0			22.0
IRS audit settlement		2.2
Net benefit due to increase in foreign tax credits		(15.7)	(6.6)
Other		1.1	0.4
Tax on unremitted earnings				(0.6)
Tax expense (benefit) at effective rate		$ 76.1	$ 81.0	$ 58.0