Components of Deferred Tax Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Deferred Tax Assets, Net [Abstract]
Postretirement/post-employment benefits	$ 32.5	$ 40.4
Deferred compensation	187.2	192.4
Pension costs	31.1	27.0
Basis differences in fixed assets	(4.1)	26.9
Rent	50.7	50.2
Interest	60.7	66.9
Accruals and reserves	39.6	51.1
Allowance for doubtful accounts	10.8	9.2
Basis differences in intangible assets	(402.2)	(364.9)
Investments in equity securities	48.6	(5.2)
Tax loss/tax credit carry forwards	443.6	449.7
Restructuring and other reorganization-related costs	2.6	1.2
Other	60.5	88.3
Total Deferred Tax Assets, Net	561.6	633.2
Valuation allowance	(467.3)	(392.9)	(489.9)	(508.1)
Net Deferred Tax Assets	$ 94.3	$ 240.3