Benefit Plans and Other Postretirement Benefits (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Contribution Plan, Cost Recognized	$ 3.8	$ 3.0	$ 2.7
U.S. plans, Pension Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate (as a percent)	3.75%	4.60%
Rate of compensation increase (as a percent)	3.00%	3.00%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (as a percent)	4.60%	3.75%	4.45%
Expected long-term return on assets (as a percent)	8.00%	8.00%	8.00%
Rate of compensation increase (as a percent)	3.00%	3.00%	3.00%
Increase or decrease in accrued benefit obligation due to change in discount rate	$ 80.0
Number of years of compounded return	20 years
Compounded return (as a percent)	9.00%
International plans, Pension Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate (as a percent)	2.91%	4.09%
Rate of compensation increase (as a percent)	1.45%	2.95%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (as a percent)	4.09%	3.97%	4.97%
Expected long-term return on assets (as a percent)	5.99%	5.50%	5.66%
Rate of compensation increase (as a percent)	1.48%	2.57%	2.83%
U.S. plans, Other Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate (as a percent)	3.50%	4.15%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate (as a percent)	4.15%	3.45%	4.25%

Represents the historical rate of compounded return used to calculate pension expense.

No definition available.

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- Definition

The effect of increase or decrease in the discount rates on accrued benefit obligation.

+ References

No definition available.

+ Details

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- Definition

Represents the period in years, compounded return.

+ References

No definition available.

+ Details

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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=35743120&loc=d3e1928-114920

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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=35743120&loc=d3e1928-114920

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- Definition

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

+ References

+ 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

-Topic 715

-SubTopic 30

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

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=35743120&loc=d3e1928-114920

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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=35743120&loc=d3e1928-114920

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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