v2.4.1.9

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

X

- 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

X

- 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

X

- 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

X

- 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

X

- 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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- 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: