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Restructuring and Relocation Activities - Schedule of Program Metrics (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2017 USD ($) Employee | Mar. 31, 2016 USD ($)
Restructuring Cost And Reserve [Line Items] |  |
Approximate positions eliminated by the program | Employee | 1,950 |
Costs of reduction in headcount as a result of reorganization | $ 226.0 |
Other expenses associated with the Program | 3.9 | $ 3.9
Total expense | 4.1 | 6.1
Capital expenditures | 9.9 | $ 19.1
Total Cumulative Expense | 335.0 |
Cumulative Capital expenditures | 224.0 |
Minimum [Member] |  |
Restructuring Cost And Reserve [Line Items] |  |
Costs of reduction in headcount as a result of reorganization | 235.0 |
Other expenses associated with the Program | 155.0 |
Total expense | 390.0 |
Capital expenditures | 250.0 |
Proceeds, foreign exchange and other cash items | (70.0) |
Total estimated net cash cost | 570.0 |
Maximum [Member] |  |
Restructuring Cost And Reserve [Line Items] |  |
Costs of reduction in headcount as a result of reorganization | 245.0 |
Other expenses associated with the Program | 160.0 |
Total expense | 405.0 |
Capital expenditures | 255.0 |
Proceeds, foreign exchange and other cash items | (75.0) |
Total estimated net cash cost | 585.0 |
Other Restructuring |  |
Restructuring Cost And Reserve [Line Items] |  |
Other expenses associated with the Program | $ 109.0 |

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