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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 |  |

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