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Benefit Plans and Other Postretirement Benefits (Tables) | 12 Months Ended
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Dec. 31, 2014
Pension Benefits |
Defined Benefit Plan Disclosure |
Change in benefit obligation, fair value of plan assets and funded status of defined benefit pension plans |
|  | December 31, |
|  | 2014 |  | 2013 |
Change in projected benefit obligation: |  |  |  |  |
Projected benefit obligation at beginning of year |  | $ | 560.1 |  | $ | 565.4 |
Service cost |  | 10.8 |  | 10.5 |
Interest cost |  | 24.1 |  | 20.9 |
Acquisitions |  | 7.0 |  | 16.4 |
Plan amendments |  | — |  | 5.6 |
Actuarial (gain) loss |  | 123.1 |  | (33.7 | )
Foreign exchange translation |  | (18.7 | ) | 2.6 |
Benefits paid |  | (29.9 | ) | (27.6 | )
Projected benefit obligation at end of year |  | 676.5 |  | 560.1 |
Change in plan assets: |  |  |  |  |
Fair value of plan assets at beginning of year |  | 392.5 |  | 334.4 |
Actual return on plan assets |  | 26.4 |  | 50.7 |
Employer contributions |  | 23.8 |  | 23.3 |
Acquisitions |  | — |  | 12.3 |
Foreign exchange translation |  | (4.7 | ) | (0.6 | )
Actuarial loss |  | 1.3 |  | — |
Benefits paid |  | (29.9 | ) | (27.6 | )
Fair value of plan assets at end of year |  | 409.4 |  | 392.5 |
Funded status |  | $ | (267.1 | ) | $ | (167.6 | )
Schedule of components of net pension expense |
|  | Year Ended December 31, |
|  | 2014 |  | 2013 |  | 2012 |
Components of net pension expense: |  |  |  |  |  |  |
Service cost |  | $ | 8.2 |  | $ | 8.5 |  | $ | 7.7 |
Interest cost |  | 24.1 |  | 20.9 |  | 22.0 |
Expected return on plan assets |  | (28.5 | ) | (24.8 | ) | (25.0 | )
Net amortization of actuarial losses |  | 18.6 |  | 25.5 |  | 20.5 |
Net pension expense |  | $ | 22.4 |  | $ | 30.1 |  | $ | 25.2 |
Schedule of defined benefit plan weighted average assumptions used in calculating benefit obligation and net periodic benefit cost |
|  | Weighted-average assumptions used to determine benefit obligations at December 31, |
|  | Pension Benefits |  | Other Benefits |
|  | 2014 |  | 2013 |  | 2014 |  | 2013 |
Discount rate: |  |  |  |  |  |  |  |  |
U.S. plans |  | 3.75 | % | 4.60 | % | 3.50 | % | 4.15 | %
International plans |  | 2.91 | % | 4.09 | % | n/a |  | n/a |
Rate of compensation increase: |  |  |  |  |  |  |  |  |
U.S. plans |  | 3.00 | % | 3.00 | % | n/a |  | n/a |
International plans |  | 1.45 | % | 2.95 | % | n/a |  | n/a |
|  | Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31, |
|  | Pension Benefits |  | Other Benefits |
|  | 2014 |  | 2013 |  | 2012 |  | 2014 |  | 2013 |  | 2012 |
Discount rate: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. plans |  | 4.60 | % | 3.75 | % | 4.45 | % | 4.15 | % | 3.45 | % | 4.25 | %
International plans |  | 4.09 | % | 3.97 | % | 4.97 | % | n/a |  | n/a |  | n/a |
Expected long-term return on assets: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. plans |  | 8.00 | % | 8.00 | % | 8.00 | % | n/a |  | n/a |  | n/a |
International plans |  | 5.99 | % | 5.50 | % | 5.66 | % | n/a |  | n/a |  | n/a |
Rate of compensation increase: |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. plans |  | 3.00 | % | 3.00 | % | 3.00 | % | n/a |  | n/a |  | n/a |
International plans |  | 1.48 | % | 2.57 | % | 2.83 | % | n/a |  | n/a |  | n/a |
Fair values of company's pension plan assets by asset category |
|  | Fair Value Measurements at December 31, 2014 |
Asset Category |  | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
Equity securities: |  |  |  |  |  |  |  |  |
U.S. equities — large cap |  | $ | 106.6 |  | $ | 80.9 |  | $ | 25.7 |  | $ | — |
U.S. equities — small/mid cap and other |  | 23.0 |  | — |  | 23.0 |  | — |
International equities — growth |  | 46.9 |  | 46.9 |  | — |  | — |
International equities — other |  | 50.7 |  | — |  | 50.7 |  | — |
|  | 227.2 |  | 127.8 |  | 99.4 |  |  |
Alternative investment funds |  | 40.1 |  | — |  | 40.1 |  | — |
Fixed income securities: |  |  |  |  |  |  |  |  |
U.S. fixed income securities — intermediate term |  | 59.1 |  | 59.1 |  | — |  | — |
U.S. fixed income securities — high yield |  | 20.2 |  | — |  | 20.2 |  | — |
International fixed income securities — other |  | 40.6 |  | — |  | 40.6 |  | — |
|  | 119.9 |  | 59.1 |  | 60.8 |  | — |
Cash and cash equivalents |  | 22.2 |  | 22.2 |  | — |  | — |
Total |  | $ | 409.4 |  | $ | 209.1 |  | $ | 200.3 |  | $ |  |
|  | Fair Value Measurements at December 31, 2013 |
Asset Category |  | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
Equity securities: |  |  |  |  |  |  |  |  |
U.S. equities — large cap |  | $ | 122.2 |  | $ | 93.1 |  | $ | 29.1 |  | $ | — |
U.S. equities — small/mid cap and other |  | 24.7 |  | 1.6 |  | 23.1 |  | — |
International equities — growth |  | 51.8 |  | 51.8 |  | — |  | — |
International equities — other |  | 56.3 |  | 8.1 |  | 48.2 |  | — |
|  | 255.0 |  | 154.6 |  | 100.4 |  |  |
Fixed income securities: |  |  |  |  |  |  |  |  |
U.S. fixed income securities — intermediate term |  | 62.2 |  | 62.2 |  | — |  | — |
U.S. fixed income securities — high yield |  | 24.4 |  | 0.3 |  | 24.1 |  | — |
International fixed income securities — other |  | 39.7 |  |  |  | 39.7 |  | — |
|  | 126.3 |  | 62.5 |  | 63.8 |  | — |
Cash and cash equivalents |  | 11.2 |  | 11.2 |  | — |  | — |
Total |  | $ | 392.5 |  | $ | 228.3 |  | $ | 164.2 |  | $ |  |
Benefit payments related to the pension plans, including amounts to be paid out of company assets and reflecting future expected service |
2015 |  | $ | 27.0 |
2016 |  | 28.0 |
2017 |  | 29.2 |
2018 |  | 30.3 |
2019 |  | 31.5 |
2020-2024 |  | 175.5 |
Other Postretirement Benefits |
Defined Benefit Plan Disclosure |
Change in benefit obligation of postretirement plans |
|  | December 31, |
|  | 2014 |  | 2013 |
Change in benefit obligation: |  |  |  |  |
Benefit obligation at beginning of year |  | $ | 11.9 |  | $ | 15.7 |
Service cost |  | 0.1 |  | 0.2 |
Interest cost |  | 0.5 |  | 0.5 |
Paid benefits and expenses |  | (0.9 | ) | (1.1 | )
Actuarial gain (loss) |  | 0.6 |  | (3.4 | )
Benefit obligation at end of year |  | $ | 12.2 |  | $ | 11.9 |
Schedule of components of net pension expense |
|  | Year ended December 31, |
|  | 2014 |  | 2013 |  | 2012 |
Components of net post-retirement benefit cost: |  |  |  |  |  |  |
Service cost |  | $ | 0.1 |  | $ | 0.2 |  | $ | 0.2 |
Interest cost |  | 0.5 |  | 0.5 |  | 0.7 |
Net amortization of actuarial losses |  | 0.4 |  | 0.8 |  | 1.0 |
Net post-retirement benefit cost |  | $ | 1.0 |  | $ | 1.5 |  | $ | 1.9 |

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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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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + 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 (k) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the aggregate benefit obligation and aggregate fair value of plan assets for pension plans and/or other employee benefit plans with benefit obligations in excess of plan assets as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of the change in the benefit obligation of pension plans and/or other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + 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 (a) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + 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 (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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