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Restructuring and Relocation Activities - Schedule of Program Metrics (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2016 USD ($) Employee | Dec. 31, 2015 USD ($) | Dec. 31, 2014 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 | 28.0 | $ 42.9 | $ 35.8
Total expense | 40.9 | 121.2 | 101.5
Capital expenditures | 123.5 | $ 52.0 | $ 28.0
Total Cumulative Expense | 331.0 |  |
Cumulative capital expenditures | 214.0 |  |
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 | $ 105.0 |  |

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