DCT Transaction - Schedule of Aggregate Equity Consideration (Detail) - DCT Transaction [Member] $ / shares in Units, shares in Thousands, $ in Millions	Aug. 22, 2018 USD ($) $ / shares shares
Business Acquisition [Line Items]
Number of Prologis shares and units issued upon conversion of DCT shares and units at August 21, 2018 \| shares	99,730
Multiplied by price of Prologis' common stock on August 21, 2018 \| $ / shares	$ 65.75
Fair value of Prologis shares and units issued \| $	$ 6,557

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477

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