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Schedule of Target Assets Allocation (Detail) | Dec. 31, 2017
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Bloomberg Barclays Corporate or Better Index | U.S. corporate fixed income |
Defined Benefit Plan Disclosure |
Target assets allocation percentage | 76.00%
MSCI World Minimum Volatility Index | Global equity Securities |
Defined Benefit Plan Disclosure |
Target assets allocation percentage | 10.00%
Bloomberg Barclays Capital Long Government Credit Index | U.S. government fixed income |
Defined Benefit Plan Disclosure |
Target assets allocation percentage | 8.00%
Bloomberg Barclays Corporate High Yield Issuer Cap Index | High yield fixed income |
Defined Benefit Plan Disclosure |
Target assets allocation percentage | 5.00%
Citi Group Three Month Treasury Bill Index | Cash |
Defined Benefit Plan Disclosure |
Target assets allocation percentage | 1.00%

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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5)(i) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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