v2.4.1.9

Impairment Charges - Additional Information (Detail) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Property, Plant and Equipment [Line Items] |  |  |
Impairment of real estate properties | $ 0 pld_AssetImpairmentChargesContinuingAndDiscontinuedOperations | $ 0 pld_AssetImpairmentChargesContinuingAndDiscontinuedOperations | $ 283,500,000 pld_AssetImpairmentChargesContinuingAndDiscontinuedOperations
Impairment of real estate properties |  |  | 252,914,000 us-gaap_ImpairmentOfRealEstate
Prologis European Logistics Partners [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Impairment of real estate properties |  |  | 135,300,000 us-gaap_ImpairmentOfRealEstate / dei_LegalEntityAxis = pld_PrologisEuropeanLogisticsPartnersMember
Operating Properties [Member] | Continuing Operations [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Impairment charges |  |  | 28,700,000 us-gaap_AssetImpairmentCharges / us-gaap_PropertyPlantAndEquipmentByTypeAxis = pld_OperatingPropertiesMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentContinuingOperationsMember
Operating Properties [Member] | Discontinued Operations [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets held for sale, impairment charge |  |  | 30,600,000 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf / us-gaap_PropertyPlantAndEquipmentByTypeAxis = pld_OperatingPropertiesMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember
Land Parcels [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets held for sale, impairment charge |  |  | 11,400,000 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf / us-gaap_PropertyPlantAndEquipmentByTypeAxis = pld_LandParcelsMember
Additional impairment charge |  |  | 16,100,000 pld_AdditionalImpairmentCharge / us-gaap_PropertyPlantAndEquipmentByTypeAxis = pld_LandParcelsMember
Land Parcels [Member] | Central And Eastern Europe [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets held for sale, impairment charge |  |  | $ 77,500,000 us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf / us-gaap_LongLivedAssetsToBeAbandonedByAssetAxis = pld_CentralAndEasternEuropeMember / us-gaap_PropertyPlantAndEquipmentByTypeAxis = pld_LandParcelsMember

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- Definition Additional Impairment Charge + References No definition available. + Details
Name: | pld_AdditionalImpairmentCharge
Namespace Prefix: | pld_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Asset Impairment Charges Continuing And Discontinued Operations + References No definition available. + Details
Name: | pld_AssetImpairmentChargesContinuingAndDiscontinuedOperations
Namespace Prefix: | pld_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2611-110228 + Details
Name: | us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=pld_PrologisEuropeanLogisticsPartnersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=pld_LandParcelsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=pld_OperatingPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |