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Legal Matters and Contingencies (Details)
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3 Months Ended |
|---|---|
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Mar. 31, 2015
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| Legal Matters and Contingencies | |
| Number of former public waste disposal sites | 5 |
| Oil-for-Food Program [Member] | |
| Legal Matters and Contingencies | |
| Number of French companies for investigation (over 170) | 170 |
| Number of our French companies for investigation | 1 |
| Number of participants in U.N Oil-for-Food Program | 93 |
| Number of foreign subsidiaries | 2 |