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Cost-Reduction Actions - Individual Components of Work Force Reduction and Idle Lease Cost (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2018 | Dec. 31, 2018
Total |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at beginning of period |  | $ 117.8 |
Payments |  | (26.3) |
Changes in estimates | $ 0.7 | (2.2) |
Translation adjustments |  | (2.1) |
Balance at end of period | 87.2 | 87.2 |
2018 remaining six months | 53.4 | 53.4 |
Beyond 2018 | 53.4 | 53.4 |
Total | Forecast |  |  |
Restructuring Reserve [Roll Forward] |  |  |
2018 remaining six months |  |  | $ 33.8
Beyond 2018 |  |  | 33.8
Work-Force Reductions | U.S. |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at beginning of period |  | 3.9 |
Payments |  | (2.2) |
Changes in estimates |  | (1.2) |
Translation adjustments |  | 0.0 |
Balance at end of period | 0.5 | 0.5 |
2018 remaining six months | 0.5 | 0.5 |
Beyond 2018 | 0.5 | 0.5 |
Work-Force Reductions | U.S. | Forecast |  |  |
Restructuring Reserve [Roll Forward] |  |  |
2018 remaining six months |  |  | 0.0
Beyond 2018 |  |  | 0.0
Work-Force Reductions | International |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at beginning of period |  | 109.6 |
Payments |  | (22.9) |
Changes in estimates |  | (2.4) |
Translation adjustments |  | (2.1) |
Balance at end of period | 82.2 | 82.2 |
2018 remaining six months | 51.8 | 51.8 |
Beyond 2018 | 51.8 | 51.8 |
Work-Force Reductions | International | Forecast |  |  |
Restructuring Reserve [Roll Forward] |  |  |
2018 remaining six months |  |  | 30.4
Beyond 2018 |  |  | 30.4
Idle Leased Facilities Costs |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Balance at beginning of period |  | 4.3 |
Payments |  | (1.2) |
Changes in estimates |  | 1.4 |
Translation adjustments |  | 0.0 |
Balance at end of period | 4.5 | 4.5 |
2018 remaining six months | 1.1 | 1.1 |
Beyond 2018 | $ 1.1 | $ 1.1 |
Idle Leased Facilities Costs | Forecast |  |  |
Restructuring Reserve [Roll Forward] |  |  |
2018 remaining six months |  |  | 3.4
Beyond 2018 |  |  | $ 3.4

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