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Investments, Loans and Long-Term Receivables - Additional Information (Detail) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2007
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Dec. 31, 2008
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Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
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Dec. 31, 2010
Fair Value, Measurements, Recurring [Member]
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Dec. 31, 2011
Origin Energy [Member]
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Dec. 31, 2011
Qatargas 3 [Member]
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Dec. 31, 2011
Qatar Petroleum [Member]
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Dec. 31, 2011
Mitsui [Member]
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Dec. 31, 2011
Freeport LNG Development, L.P [Member]
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Dec. 31, 2011
WRB Refining LP [Member]
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Dec. 31, 2011
Non-affiliated company [Member]
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Dec. 31, 2011
China Petrochemical Corporation (Sinopec) [Member]
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Apr. 30, 2011
China Petrochemical Corporation (Sinopec) [Member]
TonnesPerYear
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Dec. 31, 2011
Australia Pacific LNG [Member]
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Dec. 31, 2010
Australia Pacific LNG [Member]
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Dec. 31, 2009
Australia Pacific LNG [Member]
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Jan. 31, 2012
Australia Pacific LNG [Member]
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Apr. 30, 2011
Australia Pacific LNG [Member]
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Jan. 31, 2012
Australia Pacific LNG [Member]
China Petrochemical Corporation (Sinopec) [Member]
TonnesPerYear
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Nov. 30, 2011
Australia Pacific LNG [Member]
Japan-based Kansai Electric [Member]
TonnesPerYear
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Dec. 31, 2011
Australia Pacific Aplngs [Member]
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Dec. 31, 2011
FCCL [Member]
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Dec. 31, 2011
WRB Refining LP [Member]
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Dec. 31, 2010
WRB Refining LP [Member]
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Dec. 31, 2009
WRB Refining LP [Member]
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Dec. 31, 2011
DCP Midstream LLC [Member]
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Dec. 31, 2011
DCP Midstream LLC [Member]
Origin Energy [Member]
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Dec. 31, 2011
Chevron Phillips Chemical Company LLC [Member]
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Dec. 31, 2011
Chevron Phillips Chemical Company LLC [Member]
Origin Energy [Member]
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Sep. 29, 2010
LUKOIL Investment [Member]
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Jul. 28, 2010
LUKOIL Investment [Member]
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Dec. 31, 2011
LUKOIL Investment [Member]
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Dec. 31, 2010
LUKOIL Investment [Member]
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Dec. 31, 2009
LUKOIL Investment [Member]
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Sep. 26, 2010
LUKOIL Investment [Member]
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Dec. 31, 2010
LUKOIL Investment [Member]
Available-for-sale Securities [Member]
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Dec. 31, 2011
Merey Sweeny, L.P. [Member]
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Dec. 31, 2011
Qatar Liquefied Gas Company Limited 3 [Member]
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Dec. 31, 2011
Qatar Liquefied Gas Company Limited 3 [Member]
Origin Energy [Member]
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| Related Party Transaction [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||
| Ownership percentage in equity investment | 50.00% | 30.00% | 42.50% | 50.00% | 50.00% | 50.00% | 2.25% | 20.00% | 50.00% | 30.00% | |||||||||||||||||||||||||||||||||||
| Equity Interest of Others | 42.50% | 68.50% | 1.50% | 42.50% | 68.50% | 1.50% | 15.00% | ||||||||||||||||||||||||||||||||||||||
| Undistributed earnings of affiliates | $ 2,814,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Dividends received from affiliates | 3,670,000,000 | 2,282,000,000 | 1,727,000,000 | ||||||||||||||||||||||||||||||||||||||||||
| Supply of LNG, in metric tons per annum to Sinopec | 4,300,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Number of years for LNG supply | 20 years | ||||||||||||||||||||||||||||||||||||||||||||
| Gain on disposal of equity method investment | 1,149,000,000 | 279,000,000 | 360,000,000 | 1,749,000,000 | 437,000,000 | ||||||||||||||||||||||||||||||||||||||||
| Reduction in book value of investment | 795,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Reduction in currency translation adjustment associated with investment | 516,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Significant supply commitment minimum quantity committed | 3,300,000 | 1,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Significant supply commitment minimum period committed | 20 years | ||||||||||||||||||||||||||||||||||||||||||||
| Increased percentage of ownership in equity method investments after signing agreement | 37.50% | 25.00% | 37.50% | ||||||||||||||||||||||||||||||||||||||||||
| Expected loss after-tax from dilution | 135,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Equity investment | 30,985,000,000 | 30,055,000,000 | 931,000,000 | 9,467,000,000 | 9,044,000,000 | 3,722,000,000 | 927,000,000 | 2,998,000,000 | |||||||||||||||||||||||||||||||||||||
| Equity method investment including cumulative translation effects | 5,223,000,000 | 6,140,000,000 | 4,736,000,000 | (240,000,000) | 2,716,000,000 | ||||||||||||||||||||||||||||||||||||||||
| Estimated value of net assets | 2,380,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Difference between estimated value and book value of equity method investment | 7,087,000,000 | 3,918,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Amortizable portion of the basis difference in properties, plants and equipment | 5,192,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Effect of amortization of difference between carrying amount and underlying equity on equity earnings | 17,000,000 | 5,000,000 | 4,000,000 | 185,000,000 | 243,000,000 | 209,000,000 | 155,000,000 | 157,000,000 | |||||||||||||||||||||||||||||||||||||
| Initial acquisition obligation to joint venture | 7,500,000,000 | 7,500,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Period of amortization of basic difference in years | 26 years | 22 years | |||||||||||||||||||||||||||||||||||||||||||
| Partner initial acquisition obligation to joint venture | 7,500,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Loan/project financing to affiliated company | 1,159,000,000 | 612,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Percentage of interest in terminal and pipeline use agreement | 12.40% | ||||||||||||||||||||||||||||||||||||||||||||
| Multiple supply and purchase agreements term maximum | 99 years | ||||||||||||||||||||||||||||||||||||||||||||
| Multiple supply and purchase agreements term minimum | 1 year | ||||||||||||||||||||||||||||||||||||||||||||
| Repayment of fixed rate bonds on accelerated basis | 1,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Cash proceeds | 2,380,000,000 | 3,442,000,000 | 1,243,000,000 | 8,345,000,000 | 1,793,000,000 | ||||||||||||||||||||||||||||||||||||||||
| Number of shares held under equity method investment | 163.4 | ||||||||||||||||||||||||||||||||||||||||||||
| Number of shares of equity method investment sold | 42.5 | 64.6 | 151.0 | ||||||||||||||||||||||||||||||||||||||||||
| Price per share of the share subsidiary would purchase under stock purchase and option agreement | $ 56.00 | $ 53.25 | |||||||||||||||||||||||||||||||||||||||||||
| Period of option to purchase remaining interest in company | 60 days | ||||||||||||||||||||||||||||||||||||||||||||
| Carrying value of share investment in LUKOIL | 1,083,000,000 | [1] | 1,083,000,000 | ||||||||||||||||||||||||||||||||||||||||||
| Closing price per share on London Stock Exchange | $ 56.50 | $ 56.50 | |||||||||||||||||||||||||||||||||||||||||||
| Gross unrealized gains on investment | 247,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Loan facilities of joint venture | 4,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Export credit agency commitment to joint venture | 1,300,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Commercial banks commitment to joint venture | 1,500,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Maximum exposure to Qatargas 3 | 1,200,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Payments received on long-term loans | 550,000,000 | 365,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Loan guarantees of total refinancing | 191,000,000 | ||||||||||||||||||||||||||||||||||||||||||||
| Fair value of investments re-measured on a recurring basis, valued at Level 1 of the fair value hierarchy | $ 336,000,000 | $ 325,000,000 | |||||||||||||||||||||||||||||||||||||||||||
| Additional equity method ownership interest acquired in Merey Sweeny Limited Partnership | 50.00% | ||||||||||||||||||||||||||||||||||||||||||||
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