Acquisitions - Schedule of Aggregate Equity Consideration (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	Feb. 04, 2020	Aug. 22, 2018
Liberty Transaction [Member]
Business Acquisition [Line Items]
Number of Prologis shares and units issued upon conversion of Liberty shares and units at February 4, 2020	109,010
Multiplied by price of Prologis' common stock on February 3, 2020	$ 91.87
Fair value of Prologis shares and units issued	$ 10,015
DCT Transaction [Member]
Business Acquisition [Line Items]
Multiplied by price of Prologis' common stock on February 3, 2020		$ 65.75
Fair value of Prologis shares and units issued		$ 6,557
Number of Prologis shares and units issued upon conversion of DCT shares and units at August 21, 2018		99,730

Business acquisition number of shares and units converted.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

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- Definition

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.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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
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-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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