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Employee Benefit and Retirement Plans - Schedule of Reconciliation of Benefit Obligations (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Accumulated benefit obligation | $ 2,100.0 | $ 1,900.0 |
Pension Benefits | U.S. |  |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Benefit obligation at beginning of year | 1,348.0 | 1,553.7 |
Service cost | 0.5 | 0.8 | $ 2.8
Interest cost | 49.1 | 46.4 | 49.6
Actuarial (gain) loss | 150.9 | (147.7) |
Amendments | 0.0 | 0.0 |
Currency translation | 0.0 | 0.0 |
Benefits paid | (99.4) | (105.2) |
Acquisitions and dispositions, net | 0.0 | 0.0 |
Curtailments, settlements and other | 0.0 | 0.0 |
Benefit obligation at end of year | 1,449.1 | 1,348.0 | 1,553.7
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 1,104.9 | 1,271.1 |
Actual return (loss) on plan assets | 212.7 | (71.2) |
Contributions | 10.0 | 10.2 |
Currency translation | 0.0 | 0.0 |
Benefits paid | (99.4) | (105.2) |
Acquisitions and dispositions, net | 0.0 | 0.0 |
Settlements and other | 0.0 | 0.0 |
Fair value of plan assets at end of year | 1,228.2 | 1,104.9 | 1,271.1
Funded status at end of year | (220.9) | (243.1) |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Prepaid benefit cost, included in other assets | 0.0 | 0.0 |
Accrued current benefit cost—other accrued liabilities | (14.7) | (9.9) |
Accrued noncurrent benefit cost— other noncurrent liabilities | (206.2) | (233.2) |
Net amount recognized | $ (220.9) | $ (243.1) |
Discount rate | 3.06% | 4.12% |
Long-term rate of compensation increase | 3.00% | 3.00% |
Current health care cost trend rates | 0.00% | 0.00% |
Ultimate health care cost trend rates | 0.00% | 0.00% |
Pension Benefits | International |  |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Benefit obligation at beginning of year | $ 581.3 | $ 679.4 |
Service cost | 6.5 | 6.3 | 7.3
Interest cost | 12.6 | 13.1 | 13.4
Actuarial (gain) loss | 45.0 | (35.2) |
Amendments | 0.6 | 2.5 |
Currency translation | 14.8 | (32.0) |
Benefits paid | (22.3) | (30.0) |
Acquisitions and dispositions, net | 0.5 | 0.8 |
Curtailments, settlements and other | (12.7) | (23.6) |
Benefit obligation at end of year | 626.3 | 581.3 | 679.4
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 531.5 | 610.4 |
Actual return (loss) on plan assets | 51.0 | (11.0) |
Contributions | 13.0 | 15.0 |
Currency translation | 19.1 | (31.0) |
Benefits paid | (22.3) | (30.0) |
Acquisitions and dispositions, net | 0.4 | 0.8 |
Settlements and other | (12.8) | (22.7) |
Fair value of plan assets at end of year | 579.9 | 531.5 | 610.4
Funded status at end of year | (46.4) | (49.8) |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Prepaid benefit cost, included in other assets | 89.1 | 72.2 |
Accrued current benefit cost—other accrued liabilities | (4.7) | (4.7) |
Accrued noncurrent benefit cost— other noncurrent liabilities | (130.8) | (117.3) |
Net amount recognized | $ (46.4) | $ (49.8) |
Discount rate | 1.79% | 2.53% |
Long-term rate of compensation increase | 2.31% | 2.43% |
Current health care cost trend rates | 0.00% | 0.00% |
Ultimate health care cost trend rates | 0.00% | 0.00% |
Postretirement Benefits |  |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Benefit obligation at beginning of year | $ 53.0 | $ 65.1 |
Service cost | 0.2 | 0.3 | 0.1
Interest cost | 1.8 | 1.8 | 2.2
Actuarial (gain) loss | 2.4 | (8.9) |
Amendments | 0.0 | 0.0 |
Currency translation | 0.0 |  |
Benefits paid | (5.2) | (4.9) |
Acquisitions and dispositions, net | 0.0 | 0.0 |
Curtailments, settlements and other | 0.0 | (0.4) |
Benefit obligation at end of year | 52.2 | 53.0 | 65.1
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0.0 | 0.0 |
Actual return (loss) on plan assets | 0.0 | 0.0 |
Contributions | 0.0 | 0.0 |
Currency translation | 0.0 | 0.0 |
Benefits paid | 0.0 |  |
Acquisitions and dispositions, net | 0.0 | 0.0 |
Settlements and other | 0.0 | 0.0 |
Fair value of plan assets at end of year | 0.0 | 0.0 | $ 0.0
Funded status at end of year | (52.2) | (53.0) |
Amounts recognized in the Consolidated Balance Sheets: |  |  |
Prepaid benefit cost, included in other assets | 0.0 |  |
Accrued current benefit cost—other accrued liabilities | (5.6) | (5.3) |
Accrued noncurrent benefit cost— other noncurrent liabilities | (46.6) | (47.7) |
Net amount recognized | $ (52.2) | $ (53.0) |
Discount rate | 2.80% | 3.97% |
Long-term rate of compensation increase | 0.00% | 0.00% |
Current health care cost trend rates | 6.74% | 6.99% |
Ultimate health care cost trend rates | 4.50% | 4.50% |

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