v2.4.0.6

General (Details)	6 Months Ended
	Jun. 30, 2012 Segments
General [Abstract]
Conversion basis of common stock	0.4464
Number of reportable segments	2
Percentage of ownership in general partnership	99.59%
Percentage of interest in preferred units	100.00%
Percentage of common limited partnership interest	0.41%

X

- Definition

Conversion basis of common stock.

+ References

No definition available.

+ Details

Name:	pld_ConversionBasisOfCommonStock
Namespace Prefix:	pld_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of common limited partnership interest.

+ References

No definition available.

+ Details

Name:	pld_PercentageOfCommonLimitedPartnershipInterest
Namespace Prefix:	pld_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of interest in preferred units.

+ References

No definition available.

+ Details

Name:	pld_PercentageOfInterestInPreferredUnits
Namespace Prefix:	pld_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of ownership in general partnership.

+ References

No definition available.

+ Details

Name:	pld_PercentageOfOwnershipInGeneralPartnership
Namespace Prefix:	pld_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Details

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