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Employee Benefit Plans (Weighted-average Assumptions Used) (Details) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Pension Benefits [Member] |  |  |
Weighted-average assumptions used to determine benefit obligations as of December 31: |  |  |
Discount rate | 4.17% | 4.51% |
Rate of compensation increase | 4.23% | 4.23% |
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31: |  |  |
Discount rate - service cost | 4.30% | 3.97% | 4.88%
Discount rate - interest cost | 3.76% | 3.97% | 4.88%
Expected long-term return on plan assets | 7.50% | 7.50% | 8.00%
Rate of compensation increase | 4.23% | 4.23% | 4.23%
Other Benefits [Member] |  |  |
Weighted-average assumptions used to determine benefit obligations as of December 31: |  |  |
Discount rate | 3.50% | 3.55% |
Rate of compensation increase | 0.00% | 0.00% |
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31: |  |  |
Discount rate - service cost | 4.95% | 3.23% | 3.57%
Discount rate - interest cost | 2.49% | 3.23% | 3.57%
Expected long-term return on plan assets | 0.00% | 0.00% | 0.00%
Rate of compensation increase | 0.00% | 0.00% | 0.00%
Foreign Pension Benefits [Member] |  |  |
Weighted-average assumptions used to determine benefit obligations as of December 31: |  |  |
Discount rate | 2.83% | 3.59% |
Rate of compensation increase | 3.78% | 3.70% |
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31: |  |  |
Discount rate - service cost | 2.04% | 4.12% | 4.38%
Discount rate - interest cost | 3.45% | 4.12% | 4.38%
Expected long-term return on plan assets | 4.87% | 5.22% | 6.32%
Rate of compensation increase | 3.70% | 3.48% | 3.31%

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- Definition The interest rate used to adjust for the time value of money for the 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Expected rate of compensation increases (for pay-related plans). + 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 (k)(2) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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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 + Details
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