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(Tables) | 12 Months Ended
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Dec. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] |
Schedule of Defined Benefit Plans Disclosures | The change in the benefit obligation, the change in plan assets, the funded status and amounts recognized for the domestic pension plan, the significant foreign pension plans and the domestic postretirement benefit plan are listed below.
| Domestic Pension Plan |  | Foreign Pension Plans |  | Domestic Postretirement Benefit Plan
December 31, | 2014 |  | 2013 |  | 2014 |  | 2013 |  | 2014 |  | 2013
Benefit Obligation |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation as of January 1 | $ | 133.1 |  |  | $ | 140.6 |  |  | $ | 569.9 |  |  | $ | 532.4 |  |  | $ | 37.9 |  |  | $ | 46.6 |
Service cost | 0.0 |  |  | 0.0 |  |  | 10.3 |  |  | 9.9 |  |  | 0.1 |  |  | 0.1 |
Interest cost | 6.2 |  |  | 5.5 |  |  | 23.4 |  |  | 21.7 |  |  | 1.7 |  |  | 1.6 |
Benefits paid | (10.4 | ) |  | (10.4 | ) |  | (24.1 | ) |  | (23.8 | ) |  | (5.6 | ) |  | (6.4 | )
Plan participant contributions | 0.0 |  |  | 0.0 |  |  | 0.6 |  |  | 0.5 |  |  | 1.5 |  |  | 1.7 |
Actuarial losses (gains) | 18.0 |  |  | (2.6 | ) |  | 55.7 |  |  | 25.0 |  |  | 4.4 |  |  | (5.7 | )
Settlements and curtailments | 0.0 |  |  | 0.0 |  |  | (4.0 | ) |  | (3.1 | ) |  | 0.0 |  |  | 0.0 |
Foreign currency effect | 0.0 |  |  | 0.0 |  |  | (42.8 | ) |  | 8.1 |  |  | 0.0 |  |  | 0.0 |
Other | 0.0 |  |  | 0.0 |  |  | 0.5 |  |  | (0.8 | ) |  | (0.5 | ) |  | 0.0 |
Projected benefit obligation as of December 31 | $ | 146.9 |  |  | $ | 133.1 |  |  | $ | 589.5 |  |  | $ | 569.9 |  |  | $ | 39.5 |  |  | $ | 37.9 |
Fair Value of Plan Assets |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets as of January 1 | $ | 109.6 |  |  | $ | 115.7 |  |  | $ | 398.5 |  |  | $ | 381.7 |  |  | $ | 0.0 |  |  | $ | 0.0 |
Actual return on plan assets | 9.6 |  |  | 3.8 |  |  | 44.7 |  |  | 19.5 |  |  | 0.0 |  |  | 0.0 |
Employer contributions | 2.7 |  |  | 0.5 |  |  | 25.7 |  |  | 18.3 |  |  | 4.1 |  |  | 4.7 |
Plan participant contributions | 0.0 |  |  | 0.0 |  |  | 0.6 |  |  | 0.5 |  |  | 1.5 |  |  | 1.7 |
Benefits paid | (10.4 | ) |  | (10.4 | ) |  | (24.1 | ) |  | (23.8 | ) |  | (5.6 | ) |  | (6.4 | )
Settlements | 0.0 |  |  | 0.0 |  |  | (4.0 | ) |  | (2.7 | ) |  | 0.0 |  |  | 0.0 |
Foreign currency effect | 0.0 |  |  | 0.0 |  |  | (25.9 | ) |  | 5.0 |  |  | 0.0 |  |  | 0.0 |
|  |  |  |  |  |  |  |  |  |  | 0.0 |
Fair value of plan assets as of December 31 | $ | 111.5 |  |  | $ | 109.6 |  |  | $ | 415.5 |  |  | $ | 398.5 |  |  | $ | 0.0 |  |  | $ | 0.0 |
Funded status of the plans at December 31 | $ | (35.4 | ) |  | $ | (23.5 | ) |  | $ | (174.0 | ) |  | $ | (171.4 | ) |  | $ | (39.5 | ) |  | $ | (37.9 | )
| Domestic Pension Plan |  | Foreign Pension Plans |  | Domestic Postretirement Benefit Plan
December 31, | 2014 |  | 2013 |  | 2014 |  | 2013 |  | 2014 |  | 2013
Amounts recognized in Consolidated Balance Sheets |  |  |  |  |  |  |  |  |  |  |
Non-current asset | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 8.3 |  |  | $ | 8.0 |  |  | $ | 0.0 |  |  | $ | 0.0 |
Current liability | 0.0 |  |  | 0.0 |  |  | (8.0 | ) |  | (7.6 | ) |  | (4.0 | ) |  | (4.2 | )
Non-current liability | (35.4 | ) |  | (23.5 | ) |  | (174.3 | ) |  | (171.8 | ) |  | (35.5 | ) |  | (33.7 | )
Net liability recognized | $ | (35.4 | ) |  | $ | (23.5 | ) |  | $ | (174.0 | ) |  | $ | (171.4 | ) |  | $ | (39.5 | ) |  | $ | (37.9 | )
Accumulated benefit obligation | $ | 146.9 |  |  | $ | 133.1 |  |  | $ | 566.2 |  |  | $ | 540.9 |  |  |  |  |
Amounts recognized in Accumulated Other Comprehensive Loss, net |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss (gain) | $ | 56.1 |  |  | $ | 47.0 |  |  | $ | 161.0 |  |  | $ | 141.0 |  |  | $ | 2.9 |  |  | $ | (1.5 | )
Prior service cost (credit) | 0.0 |  |  | 0.0 |  |  | 1.1 |  |  | 1.5 |  |  | (0.4 | ) |  | (0.1 | )
Transition obligation | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |
Total amount recognized | $ | 56.1 |  |  | $ | 47.0 |  |  | $ | 162.1 |  |  | $ | 142.5 |  |  | $ | 2.5 |  |  | $ | (1.6 | )
In 2015, we estimate that we will recognize $8.2 and $4.6 of net actuarial losses from accumulated other comprehensive loss, net into net periodic cost related to our domestic pension plan and significant foreign pension plans, respectively.
| Domestic Pension Plan |  | Foreign Pension Plans
December 31, | 2014 |  | 2013 |  | 2014 |  | 2013
Pension plans with underfunded or unfunded accumulated benefit obligation |  |  |  |  |  |  |
Aggregate projected benefit obligation | $ | 146.9 |  |  | $ | 133.1 |  |  | $ | 577.1 |  |  | $ | 553.2 |
Aggregate accumulated benefit obligation | 146.9 |  |  | 133.1 |  |  | 559.5 |  |  | 528.7 |
Aggregate fair value of plan assets | 111.5 |  |  | 109.6 |  |  | 395.8 |  |  | 374.7 |
Schedule of Net Benefit Costs | The components of net periodic benefit cost and key assumptions are listed below.
| Domestic Pension Plan |  | Foreign Pension Plans |  | Domestic Postretirement Benefit Plan
Years ended December 31, | 2014 |  | 2013 |  | 2012 |  | 2014 |  | 2013 |  | 2012 |  | 2014 |  | 2013 |  | 2012
Service cost | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 0.0 |  |  | $ | 10.3 |  |  | $ | 9.9 |  |  | $ | 10.2 |  |  | $ | 0.1 |  |  | $ | 0.1 |  |  | $ | 0.2 |
Interest cost | 6.2 |  |  | 5.5 |  |  | 6.3 |  |  | 23.4 |  |  | 21.7 |  |  | 21.9 |  |  | 1.7 |  |  | 1.6 |  |  | 2.3 |
Expected return on plan assets | (7.3 | ) |  | (7.7 | ) |  | (7.7 | ) |  | (24.7 | ) |  | (19.2 | ) |  | (18.2 | ) |  | 0.0 |  |  | 0.0 |  |  | 0.0 |
Settlement and curtailment losses (gains) | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.5 |  |  | (0.1 | ) |  | 0.7 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transition obligation | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.2 |
Prior service cost (credit) | 0.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.2 |  |  | 0.2 |  |  | 0.2 |  |  | (0.2 | ) |  | (0.1 | ) |  | (0.1 | )
Unrecognized actuarial losses | 6.6 |  |  | 7.9 |  |  | 6.4 |  |  | 3.4 |  |  | 2.8 |  |  | 1.0 |  |  | 0.0 |  |  | 0.0 |  |  | 0.0 |
Net periodic cost | $ | 5.5 |  |  | $ | 5.7 |  |  | $ | 5.0 |  |  | $ | 13.1 |  |  | $ | 15.3 |  |  | $ | 15.8 |  |  | $ | 1.6 |  |  | $ | 1.6 |  |  | $ | 2.6 |
Assumptions
| Domestic Pension Plan |  | Foreign Pension Plans |  | Domestic Postretirement Benefit Plan
Years ended December 31, | 2014 |  | 2013 |  | 2012 |  | 2014 |  | 2013 |  | 2012 |  | 2014 |  | 2013 |  | 2012
Net periodic cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 4.85 | % |  | 4.00 | % |  | 5.00 | % |  | 4.29 | % |  | 4.32 | % |  | 5.00 | % |  | 4.85 | % |  | 4.00 | % |  | 5.00 | %
Rate of compensation increase | N/A |  |  | N/A |  |  | N/A |  |  | 3.97 | % |  | 3.57 | % |  | 3.66 | % |  | N/A |  |  | N/A |  |  | N/A |
Expected return on plan assets | 7.00 | % |  | 7.00 | % |  | 7.25 | % |  | 6.18 | % |  | 5.24 | % |  | 5.02 | % |  | N/A |  |  | N/A |  |  | N/A |
Benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 4.15 | % |  | 4.85 | % |  | 4.00 | % |  | 3.41 | % |  | 4.29 | % |  | 4.32 | % |  | 4.00 | % |  | 4.85 | % |  | 4.00 | %
Rate of compensation increase | N/A |  |  | N/A |  |  | N/A |  |  | 2.98 | % |  | 3.97 | % |  | 3.57 | % |  | N/A |  |  | N/A |  |  | N/A |
Health care cost trend rate assumed for next year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial rate (weighted-average) |  |  |  |  |  |  |  |  |  |  |  |  | 7.00 | % |  | 7.50 | % |  | 8.00 | %
Year ultimate rate is reached |  |  |  |  |  |  |  |  |  |  |  |  | 2019 |  |  | 2019 |  |  | 2019 |
Ultimate rate |  |  |  |  |  |  |  |  |  |  |  |  | 5.00 | % |  | 5.00 | % |  | 5.00 | %
Fair Value of Pension Plan Assets | The following table presents the fair value of our domestic and foreign pension plan assets as of December 31, 2014 and 2013, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value. See Note 11 for a description of the fair value hierarchy.
| December 31, 2014 |  | December 31, 2013
Asset Class | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Investment funds | $ | 18.8 |  |  | $ | 372.6 |  |  | $ | 40.1 |  |  | $ | 431.5 |  |  | $ | 22.2 |  |  | $ | 359.1 |  |  | $ | 25.4 |  |  | $ | 406.7 |
Insurance contracts | 0.0 |  |  | 19.3 |  |  | 0.0 |  |  | 19.3 |  |  | 0.0 |  |  | 22.0 |  |  | 0.0 |  |  | 22.0 |
Limited partnerships | 0.0 |  |  | 0.0 |  |  | 32.1 |  |  | 32.1 |  |  | 0.0 |  |  | 0.0 |  |  | 36.1 |  |  | 36.1 |
Other | 42.4 |  |  | 1.4 |  |  | 0.3 |  |  | 44.1 |  |  | 40.2 |  |  | 2.5 |  |  | 0.6 |  |  | 43.3 |
Total | $ | 61.2 |  |  | $ | 393.3 |  |  | $ | 72.5 |  |  | $ | 527.0 |  |  | $ | 62.4 |  |  | $ | 383.6 |  |  | $ | 62.1 |  |  | $ | 508.1 |
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets | The following table presents additional information about our domestic and foreign pension plan assets for which we utilize Level 3 inputs to determine fair value.
| Year ended December 31, 2014 |  | Year ended December 31, 2013
| Investment Funds |  | Limited Partnerships |  | Other |  | Total |  | Investment Funds |  | Limited Partnerships |  | Other |  | Total
Balance at beginning of period | $ | 25.4 |  |  | $ | 36.1 |  |  | $ | 0.6 |  |  | $ | 62.1 |  |  | $ | 48.2 |  |  | $ | 39.8 |  |  | $ | 0.3 |  |  | $ | 88.3 |
Actual return on assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Assets sold during the year | 0.2 |  |  | 0.2 |  |  | 0.0 |  |  | 0.4 |  |  | 0.6 |  |  | 0.0 |  |  | 0.0 |  |  | 0.6 |
Assets still held at year end | (0.7 | ) |  | (0.3 | ) |  | (0.3 | ) |  | (1.3 | ) |  | 1.9 |  |  | (2.9 | ) |  | 0.2 |  |  | (0.8 | )
Net purchases, sales and settlements | 15.2 |  |  | (3.9 | ) |  | 0.0 |  |  | 11.3 |  |  | (25.3 | ) |  | (0.8 | ) |  | 0.1 |  |  | (26.0 | )
Balance at end of period | $ | 40.1 |  |  | $ | 32.1 |  |  | $ | 0.3 |  |  | $ | 72.5 |  |  | $ | 25.4 |  |  | $ | 36.1 |  |  | $ | 0.6 |  |  | $ | 62.1 |
Schedule of Allocation of Plan Assets | As of December 31, 2014, the weighted-average target and actual asset allocations relating to our domestic and foreign pension plans' assets are listed below.
|  |  |  | December 31,
Asset Class |  | 2015 Target Allocation |  | 2014 |  | 2013
Equity securities |  | 24 | % |  | 22 | % |  | 24 | %
Fixed income securities |  | 48 | % |  | 46 | % |  | 43 | %
Real estate |  | 6 | % |  | 5 | % |  | 5 | %
Other |  | 22 | % |  | 27 | % |  | 28 | %
Total |  | 100 | % |  | 100 | % |  | 100 | %
Schedule of Estimated Future Benefit Payments | The following estimated future benefit payments, which reflect future service, as appropriate, are expected to be paid in the years indicated below.
Years | Domestic Pension Plan |  | Foreign Pension Plans |  | Domestic Postretirement Benefit Plan
2015 | $ | 10.6 |  |  | $ | 22.4 |  |  | $ | 4.4 |
2016 | 10.4 |  |  | 24.2 |  |  | 4.2 |
2017 | 10.1 |  |  | 25.6 |  |  | 4.1 |
2018 | 9.9 |  |  | 26.1 |  |  | 3.9 |
2019 | 9.6 |  |  | 30.7 |  |  | 3.7 |
2020 - 2024 | 44.6 |  |  | 148.0 |  |  | 15.1 |
Schedule of Federal Subsidies | The following federal subsidies are expected to be received in the years indicated below.
Years |  | Domestic Postretirement Benefit Plan
2015 |  | $ | 0.4 |
2016 |  | 0.4 |
2017 |  | 0.4 |
2018 |  | 0.4 |
2019 |  | 0.4 |
2020 - 2024 |  | 2.4 |

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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