v2.4.1.9

Unconsolidated Entities - Summary of Remaining Equity Commitments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Jul. 31, 2014	Dec. 31, 2014
Prologis China Logistics Venture [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Committed third party equity	$ 500pld_IncreaseDecreaseInCommittedThirdPartyEquity / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisChinaLogisticsVentureMember
U.S. Dollars to Euro [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Exchange rate		1.21us-gaap_ForeignCurrencyExchangeRateTranslation1 / us-gaap_CurrencyAxis = pld_CurrencyEuroAndUnitedStatesDollarMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeLogisticsFundMember
U.S. Dollars to Euro [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Exchange rate		1.21us-gaap_ForeignCurrencyExchangeRateTranslation1 / us-gaap_CurrencyAxis = pld_CurrencyEuroAndUnitedStatesDollarMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanPropertiesFundTwoMember
U.S. Dollars to Euro [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Exchange rate		1.21us-gaap_ForeignCurrencyExchangeRateTranslation1 / us-gaap_CurrencyAxis = pld_CurrencyEuroAndUnitedStatesDollarMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_EuropeLogisticsVentureOneMember
British Pound Sterling to U.S. Dollar [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Exchange rate		1.56us-gaap_ForeignCurrencyExchangeRateTranslation1 / us-gaap_CurrencyAxis = pld_BritishPoundUSDollarMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanLogisticsPartnersMember

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+ References

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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

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