2.2.0.25falsefalse01010 - Disclosure - Description of Businesstruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $FROM_Jan01_2010_TO_Dec31_2010http://www.sec.gov/CIK0000899881duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170EPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0pld_DescriptionOfBusinessAbstractpldfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDescription of Business [Abstract]3false0us-gaap_NatureOfOperationsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse001. Description of Business ProLogis, collectively with our consolidated subsidiaries (“we”, “our”, “us”, the “Company” or “ProLogis”), is a publicly held real estate investment trust (“REIT”) that owns, operates and develops (directly and through our unconsolidated investees) primarily industrial properties in North America, Europe and Asia. Our current business strategy includes two reportable business segments: direct owned and investment management. Our direct owned segment represents the direct long-term ownership of industrial properties. Our investment management segment represents the long-term investment management of property funds and other unconsolidated investees, and the properties they own. See Note 20 for further discussion of our business segments.1. Description of Business ProLogis, collectively with our consolidated subsidiaries (“we”, “our”, “us”, thefalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescribes the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. If the entity operates in more than one business, the disclosure also indicates the relative importance of its operations in each business and the basis for the determination (for example, assets, revenues, or earnings). Disclosures about the nature of operations need not be quantified; relative importance could be conveyed by use of terms such as "predominately", "about equally", or "major and other". This element is also referred to as "Business Description".Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 10 falsefalseDescription of Business12Description of BusinessUnKnownUnKnownUnKnownUnKnownfalsetrue