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Company's Investment Policy Targets and Ranges for Each Asset Category (Detail) | 12 Months Ended
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Dec. 31, 2015
U.S. Plans | Equity Securities |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 58.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 52.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 64.00%
U.S. Plans | Debt Securities |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 36.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 33.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 39.00%
U.S. Plans | Real Estate |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 6.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 3.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 9.00%
U.S. Plans | Cash |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 0.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 0.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 5.00%
U.S. Plans | Other |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 0.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 0.00%
International Plans | Equity Securities |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 39.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 33.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 45.00%
International Plans | Debt Securities |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 54.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 47.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 61.00%
International Plans | Real Estate |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 1.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 0.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 3.00%
International Plans | Cash |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 1.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 0.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 5.00%
International Plans | Other |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |
Defined benefit plan target allocation percentage of assets | 5.00%
Defined Benefit Plan Target Plan Asset Allocations Range Minimum | 0.00%
Defined Benefit Plan Target Plan Asset Allocations Range Maximum | 10.00%

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