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Pensions And Other Postretirement Benefits Target Allocation tables (Details) - Pension Plan [Member] | Dec. 31, 2017 | Dec. 31, 2016
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U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 100.00% | 100.00%
U.S. [Member] | Equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 15.00% | 15.00%
U.S. [Member] | Debt [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 61.00% | 61.00%
U.S. [Member] | Other [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 24.00% | 24.00%
Non-U.S. [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 100.00% | 100.00%
Non-U.S. [Member] | Equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 18.00% | 21.00%
Non-U.S. [Member] | Debt [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 56.00% | 51.00%
Non-U.S. [Member] | Other [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocations | 26.00% | 28.00%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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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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