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Employee Benefit Plans (Actual Asset Allocation For Global Pension Plan Assets) (Details) - Pension Benefits [Member] | Dec. 31, 2017 | Dec. 31, 2016
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Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 100.00% | 100.00%
Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 58.00% | 59.00%
Debt Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 40.00% | 40.00%
Other Pension Plan Assets [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 2.00% | 1.00%
UNITED STATES |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Percentage of U.S. pension plan to global pension plan assets (as a percent) | 78.00% |
UNITED STATES | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 60.00% |
UNITED STATES | Debt Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 40.00% |
Foreign Plan [Member] | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 56.00% |
Foreign Plan [Member] | Debt Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 43.00% |
Foreign Plan [Member] | Other Pension Plan Assets [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Asset allocation | 1.00% |

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- Definition The percentage of US pension plan assets to global pension plan assets. + References No definition available. + Details
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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 fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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