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Supplemental Cash Flow Information	6 Months Ended
Supplemental Cash Flow Information	Jun. 30, 2017
Supplemental Cash Flow Information
Supplemental Cash Flow Information	4. Supplemental Cash Flow Information Occidental paid foreign and state income taxes of $375 million and $288 million during the six months ended June 30, 2017, and 2016, respectively. Occidental received federal income tax refunds of $749 million and $302 million in the six months ended June 30, 2017 and 2016, respectively. Interest paid totaled $155 million and $154 million in each of the six months ended June 30, 2017, and 2016, respectively.