Unconsolidated Entities - Summary of Remaining Equity Commitments (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 2,912
Prologis Inc [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	303
Fund Partner
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	2,609
Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 352
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
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	352
Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 543	[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
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	543	[1]
Prologis China Logistics Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 2,017	[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	$ 303	[2]
Prologis China Logistics Venture [Member] | Fund Partner
Schedule Of Equity Method Investments [Line Items]
Remaining equity commitments	$ 1,714	[2]

[1] Equity commitments are denominated in euro and reported in U.S. dollars based on an exchange rate of $1.14 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.