v2.4.1.9

Financial Instruments and Fair Value Measurements - Schedule of Fair Value of Derivative Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Asset	$ 106,664us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue	$ 20,241us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue
Liability	1,395us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue	35,940us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue
AOCI	101,621us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax	(14,045)us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax
Net Investment Hedges - Euro Denominated [Member]
Derivatives, Fair Value [Line Items]
Asset	22,891us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesEuroDenominatedMember	137us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesEuroDenominatedMember
Liability		30,302us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesEuroDenominatedMember
AOCI	37,295us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesEuroDenominatedMember	(21,705)us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesEuroDenominatedMember
Net Investment Hedges - Yen Denominated [Member]
Derivatives, Fair Value [Line Items]
Asset	46,934us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesYenDenominatedMember	20,104us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesYenDenominatedMember
AOCI	56,169us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesYenDenominatedMember	22,102us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesYenDenominatedMember
Net Investment Hedges - Pounds Sterling Denominated [Member]
Derivatives, Fair Value [Line Items]
Asset	29,097us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesPoundsSterlingDenominatedMember
AOCI	29,097us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_NetInvestmentHedgesPoundsSterlingDenominatedMember
Foreign Currency Options - Euro Denominated [Member]
Derivatives, Fair Value [Line Items]
Asset	7,742us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_ForeignCurrencyOptionsEuroDenominatedMember
Interest Rate Swap Hedges [Member]
Derivatives, Fair Value [Line Items]
Liability	1,395us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_InterestRateSwapHedgeMember	5,638us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_InterestRateSwapHedgeMember
AOCI	(1,395)us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_InterestRateSwapHedgeMember	(591)us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_InterestRateSwapHedgeMember
Our Share of Derivatives from Unconsolidated Co-Investment Ventures [Member]
Derivatives, Fair Value [Line Items]
AOCI	$ (19,545)us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_UnconsolidatedCoInvestmentVenturesMember	$ (13,851)us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = pld_UnconsolidatedCoInvestmentVenturesMember

X

- Definition

Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

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X

- Definition

Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

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X

- Definition

Cumulative adjustment resulting from gains and losses on foreign currency derivatives that are designated as, and are effective as, hedges of a net investment in a foreign entity, commencing as of the designation date. Adjustment reported in equity as part of accumulated other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section 45

-Paragraph 20

-Subparagraph (b),(c)

-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900

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