| **Property and Equipment - Table 5 (Details) (USD $)In Millions, unless otherwise specified** | Dec. 31, 2012 |
|-----------------------------------------------------------------------------------------------|---------------|
| **Schedule of Future Minimum Lease Payments**                                                 |          |
| Operating Leases, 2013                                                                        | $ 40.7        |
| Operating Leases, 2014                                                                        | 34.3          |
| Operating Leases, 2015                                                                        | 29.6          |
| Operating Leases, 2016                                                                        | 24.1          |
| Operating Leases, 2017                                                                        | 19.5          |
| Operating Leases, 2018 and thereafter                                                         | 107.6         |
| Operating Leases, Total                                                                       | 255.8         |
| Capital Lease Obligations, 2013                                                               | 15.7          |
| Capital Lease Obligations, 2014                                                               | 11.9          |
| Capital Lease Obligations, 2015                                                               | 10.3          |
| Capital Lease Obligations, 2016                                                               | 10.0          |
| Capital Lease Obligations, 2017                                                               | 10.0          |
| Capital Lease Obligations, 2018 and thereafter                                                | 53.5          |
| Capital Lease Obligations, Total                                                              | 111.4         |
| Less: Interest portion                                                                        | (39.5)        |
| Obligations under capital leases                                                              | 71.9          |
| Operating & Capital Lease Obligations, 2013                                               | 56.4          |
| Operating & Capital Lease Obligations, 2014                                               | 46.2          |
| Operating & Capital Lease Obligations, 2015                                               | 39.9          |
| Operating & Capital Lease Obligations, 2016                                               | 34.1          |
| Operating & Capital Lease Obligations, 2017                                               | 29.5          |
| Operating & Capital Lease Obligations, 2018 and thereafter                                | 161.1         |
| Operating & Capital Lease Obligations, Total                                              | $ 367.2       |

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Amount necessary to reduce net minimum lease payments to present value for capital leases.
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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.
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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.
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| - Definition
Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717
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