Retirement Benefits (Weighted Average Actuarial Assumptions Used To Determine Costs For The Plans) (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
U.S. Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.27%	4.30%
Investment return assumption	7.00%	7.00%
Non U.S. Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.22%	3.19%
Investment return assumption	5.90%	5.90%
Postretirement Health Care Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.14%	3.90%
Investment return assumption	7.00%	7.00%

The interest rate used to adjust for the time value of money.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Expected Long-Term Rate of Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512046

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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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.

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