Venezuela	75 Months Ended
Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Venezuela	O. Venezuela Cabot owns 49% of an operating carbon black affiliate in Venezuela, which is accounted for as an equity affiliate, through wholly-owned subsidiaries that carry the investment and receive its dividends. As of December 31, 2014, these subsidiaries carried the operating affiliate investment of $16 million and held 19 million bolivars (less than $1 million) in cash. During both the three months ended December 31, 2014 and 2013, the operating affiliate declared dividends in the amounts of $2 million which were paid in U.S. dollars and repatriated to the Company’s wholly-owned subsidiaries. A significant portion of the Company’s operating affiliate’s sales are exports denominated in U.S. dollars. The Venezuelan government mandates that a certain percentage of the dollars collected from these sales be converted into bolivars. The operating affiliate and the Company’s wholly owned subsidiaries used an exchange rate that is available to the Company when converting these dollars into bolivars to remeasure their bolivar denominated monetary accounts. The exchange rate made available to the Company on December 31, 2014 was 50 bolivars to the U.S. dollar (B/$). The operating entity has generally been profitable and has significant export operations from which it is entitled to retain a certain percentage of the foreign currency that it collects, which is principally the U.S. dollar. The Company continues to closely monitor developments in Venezuela and their potential impact on the recoverability of its equity affiliate investment. The Company closely monitors its ability to convert its bolivar holdings into U.S. dollars, as the Company intends to convert substantially all bolivars held by its wholly-owned subsidiaries in Venezuela to U.S. dollars as soon as practical. Any future change in the exchange rate made available to the Company or opening of additional parallel markets could cause the Company to change the exchange rate it uses and result in gains or losses on the bolivar denominated assets held by its operating affiliate and wholly-owned subsidiaries.

O. Venezuela

Cabot owns 49% of an operating carbon black affiliate in Venezuela, which is accounted for as an equity affiliate, through wholly-owned subsidiaries that carry the investment and receive its dividends. As of December 31, 2014, these subsidiaries carried the operating affiliate investment of $16 million and held 19 million bolivars (less than $1 million) in cash.

During both the three months ended December 31, 2014 and 2013, the operating affiliate declared dividends in the amounts of $2 million which were paid in U.S. dollars and repatriated to the Company’s wholly-owned subsidiaries.

A significant portion of the Company’s operating affiliate’s sales are exports denominated in U.S. dollars. The Venezuelan government mandates that a certain percentage of the dollars collected from these sales be converted into bolivars. The operating affiliate and the Company’s wholly owned subsidiaries used an exchange rate that is available to the Company when converting these dollars into bolivars to remeasure their bolivar denominated monetary accounts. The exchange rate made available to the Company on December 31, 2014 was 50 bolivars to the U.S. dollar (B/$).

The operating entity has generally been profitable and has significant export operations from which it is entitled to retain a certain percentage of the foreign currency that it collects, which is principally the U.S. dollar. The Company continues to closely monitor developments in Venezuela and their potential impact on the recoverability of its equity affiliate investment.

The Company closely monitors its ability to convert its bolivar holdings into U.S. dollars, as the Company intends to convert substantially all bolivars held by its wholly-owned subsidiaries in Venezuela to U.S. dollars as soon as practical. Any future change in the exchange rate made available to the Company or opening of additional parallel markets could cause the Company to change the exchange rate it uses and result in gains or losses on the bolivar denominated assets held by its operating affiliate and wholly-owned subsidiaries.