Unconsolidated Entities - Summary of Remaining Equity Commitments (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($)
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 2,693
Prologis Inc [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	299
Fund Partner [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	2,394
Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 219
Expiration date for remaining commitments range start	2016
Expiration date for remaining commitments range end	2017
Prologis Targeted U.S. Logistics Fund [Member] | Prologis Inc [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 0
Prologis Targeted U.S. Logistics Fund [Member] | Fund Partner [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	219
Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 478	[1]
Expiration date for remaining commitments range start	2016	[1]
Expiration date for remaining commitments range end	2017	[1]
Prologis Targeted Europe Logistics Fund [Member] | Prologis Inc [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 0	[1]
Prologis Targeted Europe Logistics Fund [Member] | Fund Partner [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	478	[1]
Prologis China Logistics Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 1,996	[2]
Expiration date for remaining commitments range start	2016	[2]
Expiration date for remaining commitments range end	2017	[2]
Prologis China Logistics Venture [Member] | Prologis Inc [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 299	[2]
Prologis China Logistics Venture [Member] | Fund Partner [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 1,697	[2]

[1] Equity commitments are denominated in euro and reported in U.S. dollars based on an exchange rate of $1.12 U.S. dollars to the euro.

[2] In January 2016, we reached an agreement with our partner in this venture to increase the equity commitments by $882.4 million, of which our share is $132.4 million, to fund future developments in China.