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Post-Employment and Other Long-Term Employees Benefits - Pension Plan Asset Allocation (Parenthetical) (Detail) | Dec. 31, 2016
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Corporate Bonds [Member] |
Investment in funds, percentage | 55.00%
U.S.Treasury Bonds [Member] |
Investment in funds, percentage | 35.00%
Municipal Bonds [Member] |
Investment in funds, percentage | 5.00%

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- Definition Defined benefit plan, percentage of investment in funds. + References No definition available. + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
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Data Type: | na
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- Details
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |