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Environmental Liabilities and Expenditures (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2016 USD ($) site
Environmental remediation reserves |
Number of Sites | site | 150
Environmental remediation reserves, current, included in accrued liabilities | $ 78
Environmental remediation reserves, noncurrent, included in deferred credits and other liabilities - other | 342
Reserve Balance | 420
Environmental reserves, exceeding $ ten million, threshold value | $ 10
Environmental reserves, exceeding $ ten million, number of sites | site | 13
Environmental reserves, range between zero to $ one million site category, number of sites | site | 97
Minimum period of expending second half of environmental reserves | 10 years
Low end of range |
Environmental remediation reserves |
Period of expending first half of environmental reserves | 3 years
High end of range |
Environmental remediation reserves |
Environmental reserves, range between zero to $ one million site category | $ 1
Period of expending first half of environmental reserves | 4 years
Environmental remediation additional loss range | $ 415
NPL sites |
Environmental remediation reserves |
Number of Sites | site | 35
Reserve Balance | $ 68
Third-party sites |
Environmental remediation reserves |
Number of Sites | site | 69
Reserve Balance | $ 126
Occidental-operated sites |
Environmental remediation reserves |
Number of Sites | site | 17
Reserve Balance | $ 100
Closed or non-operated Occidental sites |
Environmental remediation reserves |
Number of Sites | site | 29
Reserve Balance | $ 126

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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 + Details
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