v3.7.0.1

Weighted Average Asset Allocations (Detail) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 100.00% | 100.00%
Non-U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 100.00% | 100.00%
Equity Securities [Member] | U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 52.00% | 51.00%
Equity Securities [Member] | Non-U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 75.00% | 77.00%
Fixed Income Securities [Member] | U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 40.00% | 39.00%
Fixed Income Securities [Member] | Non-U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 22.00% | 16.00%
Real Estate [Member] | U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 8.00% | 10.00%
Cash [Member] | Non-U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 2.00% | 4.00%
Other [Member] | Non-U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average asset allocations | 1.00% | 3.00%

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