v2.4.1.9

Unconsolidated Entities - Summary of Investments (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Schedule Of Equity Method Investments Joint Ventures [Line Items] |  |
Other ventures | $ 4,824,724 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures | $ 4,430,239 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Unconsolidated Co-Investment Ventures [Member] |  |
Schedule Of Equity Method Investments Joint Ventures [Line Items] |  |
Other ventures | 4,665,918 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis = pld_CoInvestmentVenturesMember | 4,250,015 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis = pld_CoInvestmentVenturesMember
Other Joint Ventures [Member] |  |
Schedule Of Equity Method Investments Joint Ventures [Line Items] |  |
Other ventures | $ 158,806 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis = pld_OtherInvesteesMember | $ 180,224 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis = pld_OtherInvesteesMember

X
- Details
Name: | pld_ScheduleOfEquityMethodInvestmentsJointVenturesLineItems
Namespace Prefix: | pld_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis=pld_CoInvestmentVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis=pld_OtherInvesteesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |