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OTHER LIABILITIES, INCLUDING EMPLOYEE BENEFITS (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Employee Benefits [Line Items] |  |  |  |  |
Defined Benefit Plan, Vesting Period | 5 years |  |  |  |
Pension, postretirement, postemployment and other employment benefits | $ 1,225 | [1] | $ 1,340 | [1] |
Commodity derivative contracts | 320 |  | 20 |  |
Reserve for uncertain tax benefits | 87 |  | 107 |  |
Other | 263 |  | 197 |  |
Total other liabilities | 1,690 |  | 1,644 |  |
Number of years Mercer Pension Discount Curve consists of spot interest rates at half-year increments | 30 years |  |  |  |
Years of service required for annuity to equal percentage of executive's highest average compensation for any consecutive three-year period during the preceeding five years before retirement | 25 years |  |  |  |
Estimated future average expected rate of return per annum on pension assets | 7.50% |  |  |  |
Estimated future average expected rate of return on passively managed pension assets | 7.00% |  |  |  |
Estimated future average expected premium on actively managed pension assets | 0.50% |  |  |  |
Accumulated benefit obligations in excess of plan assets [Abstract] |  |  |  |  |
Projected benefit obligation | 2,180 |  | 2,247 |  |
Accumulated benefit obligation | 1,933 |  | 2,031 |  |
Fair value of plan assets | 1,490 |  | 1,443 |  |
Balance of unfunded defined contribution plan | 65 |  | 59 |  |
Costs charged to operations for employee savings plans and defined contribution plans | 66 |  | 43 |  | 35
Costs capitalized to oil and gas properties for employee savings plans and defined benefit contribution plans | 5 |  |  |  |
Other Liabilities [Member] |  |  |  |  |
Employee Benefits [Line Items] |  |  |  |  |
Commodity derivative contracts | $ 115 |  | $ 0 |  |
[1] | Refer to Note 7 for current portion.

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- Definition The portion of the expected long-term rate of return on plan assets due to active management of the portfolio. + References No definition available. + Details
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- Definition The portion of the expected long-term rate of return on plan assets from the passive return on a compound basis. + References No definition available. + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for defined benefit plans, in 'PnYnMnDTnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Defined Benefit Plan Years Mercer Pension Discount Curve Consists Of Spot Interest Rates At Half Year Increments + References No definition available. + Details
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- Definition If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=32704760&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2417-114920 + Details
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- Definition If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=32704760&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2417-114920 + Details
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- Definition If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=32704760&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2417-114920 + Details
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