v2.4.1.9

Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Percentage of agreement indemnification	100.00%pld_PercentageOfActualCapitalGainsTaxLiabilitiesUsedForIndemnificationAmount
Outstanding performance and surety bonds	$ 54.5pld_OutstandingPerformanceAndSuretyBonds	$ 25.5pld_OutstandingPerformanceAndSuretyBonds

X

- Definition

Outstanding performance and surety bonds.

+ References

No definition available.

+ Details

Name:	pld_OutstandingPerformanceAndSuretyBonds
Namespace Prefix:	pld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage of Actual Capital Gains Tax Liabilities Used For Indemnification Amount

+ References

No definition available.

+ Details

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

X

- Details

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