PROPERTY, PLANT, EQUIPMENT AND DEVELOPMENT COSTS, NET (Schedule of PPE) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	$ 25,975	$ 23,379
Accumulated depreciation, depletion and amortization	(7,526)	(6,594)
Property, plant, equipment and development costs, net	18,449	16,785
Proven and probable reserves [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	4,572	4,503
Value beyond proven and probable reserves (VBPP) [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	1,071	1,100
Development and other [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	3,447	3,188
Buildings and infrastructure [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	3,151	2,815
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	8,171	7,523
Mobile equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	2,859	2,365
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant, equipment and development costs	$ 2,704	$ 1,885

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References+ Details

Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details

- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details