| **Pension And Other Retiree Benefits**                | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
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| **Compensation and Retirement Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Pension And Other Retiree Benefits                    | Pension and Other Retiree BenefitsThe components of net periodic benefit cost (income) for pension and post-retirement plans for the three and nine months ended September 30, 2014 and 2013 were as follows:  Three Months Ended September 30, Pension Benefits Post-retirement U.S. International    (in millions of dollars)2014 2013 2014 2013 2014 2013Service cost$0.5 $0.5 $0.2 $0.4 $— $—Interest cost2.2 2.0 4.0 3.7 0.2 0.2Expected return on plan assets(3.0) (2.6) (5.8) (5.1) — —Amortization of net loss (gain)1.3 2.4 0.5 0.6 (0.2) (0.2)Amortization of prior service cost0.1 — — — — —Net periodic benefit cost (income)$1.1 $2.3 $(1.1) $(0.4) $— $— Nine Months Ended September 30, Pension Benefits Post-retirement U.S. International    (in millions of dollars)2014 2013 2014 2013 2014 2013Service cost$1.5 $1.5 $0.6 $1.2 $0.1 $0.2Interest cost6.5 6.0 11.9 11.0 0.4 0.5Expected return on plan assets(9.0) (8.0) (17.3) (15.2) — —Amortization of net loss (gain)3.9 7.2 1.5 1.8 (0.7) (0.6)Amortization of prior service cost0.3 — — — — —Net periodic benefit cost (income)$3.2 $6.7 $(3.3) $(1.2) $(0.2) $0.1We expect to contribute approximately $12.5 million to our defined benefit plans in 2014. For the nine months ended September 30, 2014, we have contributed $11.2 million to these plans. |

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| - Definition
The entire disclosure for pension and other postretirement benefits.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017
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