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OTHER CURRENT LIABILITIES - Details of Other Current Liabilities (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Schedule Of Accrued Liabilities [Line Items]    
Accrued operating expenses $ 201 $ 221
Accrued exploration and development 1,668 1,430
Accrued compensation and benefits 167 180
Accrued interest 132 143
Accrued income taxes 399 533
Accrued United Kingdom Petroleum Revenue Tax 46 284
Other 186 133
Total Other current liabilities $ 2,799 $ 2,924