v2.4.1.9
Noncontrolling Interests - Additional Information (Detail) (USD $)
12 Months Ended 3 Months Ended
Dec. 31, 2014
sqft
Dec. 31, 2013
sqft
Dec. 31, 2012
sqft
Jun. 30, 2013
Mar. 31, 2014
Property
sqft
Jun. 30, 2014
sqft
Noncontrolling Interest [Line Items]            
Square footage of properties 260,700,000us-gaap_AreaOfRealEstateProperty 264,300,000us-gaap_AreaOfRealEstateProperty 208,800,000us-gaap_AreaOfRealEstateProperty     12,600,000us-gaap_AreaOfRealEstateProperty
Third party investors portion reflected as a component of Noncontrolling Interest $ 219,871,000us-gaap_ManagementFeesRevenue $ 179,472,000us-gaap_ManagementFeesRevenue $ 126,779,000us-gaap_ManagementFeesRevenue      
Prologis Inc [Member]            
Noncontrolling Interest [Line Items]            
Net earnings attributable to noncontrolling interest   10,100,000us-gaap_IncomeLossAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= pld_PrologisIncMember
       
(Loss) from continuing operations   500,000us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity
/ dei_LegalEntityAxis
= pld_PrologisIncMember
       
Income from discontinued operations   10,600,000us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= pld_PrologisIncMember
       
Prologis Institutional Alliance Fund II [Member]            
Noncontrolling Interest [Line Items]            
Payment to acquire partners' interest       245,800,000us-gaap_PaymentsToAcquireLimitedPartnershipInterests
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisInstitutionalAllianceFundTwoMember
   
Number of limited partnership units issued       805,000us-gaap_OtherOwnershipInterestsUnitsIssued
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisInstitutionalAllianceFundTwoMember
   
Amount of partnership units issued       31,300,000us-gaap_OtherOwnershipInterestsValue
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisInstitutionalAllianceFundTwoMember
   
Promote fee earned from venture       18,800,000pld_RelatedPartyTransactionManagementFee
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisInstitutionalAllianceFundTwoMember
   
Third party investors portion reflected as a component of Noncontrolling Interest       13,500,000us-gaap_ManagementFeesRevenue
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisInstitutionalAllianceFundTwoMember
   
Prologis, L.P. [Member]            
Noncontrolling Interest [Line Items]            
Description of conversion rate One share of common stock to one unit          
Third party investors portion reflected as a component of Noncontrolling Interest 219,871,000us-gaap_ManagementFeesRevenue
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
179,472,000us-gaap_ManagementFeesRevenue
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
126,779,000us-gaap_ManagementFeesRevenue
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
     
Prologis, L.P. [Member] | Prologis US Logistics Venture [Member]            
Noncontrolling Interest [Line Items]            
Number of properties sold         66pld_NumberOfRealEstatePropertiesContributed
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisUsLogisticsVentureMember
 
Square footage of properties         12,800,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisUsLogisticsVentureMember
 
Proceeds for contributed properties         $ 1,000,000,000us-gaap_ProceedsFromSaleOfPropertyHeldForSale
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisUsLogisticsVentureMember
 
Equity method investment, percentage         55.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_PartnerTypeOfPartnersCapitalAccountAxis
= us-gaap_LimitedPartnerMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= pld_PrologisUsLogisticsVentureMember