v2.4.0.8

Financial Instruments and Fair Value Measurements - Schedule of Fair Value of Derivative Instruments (Parenthetical) (Detail) (Foreign Currency Options - Euro Denominated [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2014
Foreign Currency Options - Euro Denominated [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Gains on foreign exchange transactions | $ 1.1 | $ 1.1

X
- Definition Gains Losses On Investment And Foreign Exchange + References No definition available. + Details
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Namespace Prefix: | pld_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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