v2.4.1.9

Unconsolidated Entities - Summary of Unconsolidated Co-investment Ventures (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting [Abstract] |  |  |
Gain (Loss) on disposition of property | $ 322.9 pld_GainLossOnDispositionsOfProperty | $ 139.6 pld_GainLossOnDispositionsOfProperty | $ 147.9 pld_GainLossOnDispositionsOfProperty

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- Definition Gain Loss On Dispositions Of Property + References No definition available. + Details
Name: | pld_GainLossOnDispositionsOfProperty
Namespace Prefix: | pld_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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