Liberty Transaction - Schedule of Aggregate Equity Consideration (Detail) - Liberty Transaction [Member] $ / shares in Units, shares in Thousands, $ in Millions	Feb. 04, 2020 USD ($) $ / shares shares
Business Acquisition [Line Items]
Number of Prologis shares and units issued upon conversion of Liberty shares and units at February 4, 2020 \| shares	109,010
Multiplied by closing price of Prologis' common stock on February 3, 2020 \| $ / shares	$ 91.87
Fair value of Prologis shares and units issued \| $	$ 10,015

Number of shares of equity interests issued or issuable to acquire entity.

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-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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