Noncontrolling Interests - Noncontrolling Interest Summary (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015		May. 29, 2015	Dec. 31, 2014
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage		100.00%
Operating Partnership noncontrolling interest		$ 3,320,227			$ 1,159,901
Noncontrolling interests		3,752,901			1,208,090
Total Investment in Real Estate		24,247,084			19,399,364
Debt		11,626,831			9,336,977
Non-controlling Interests [Member]
Noncontrolling Interest [Line Items]
Total Investment in Real Estate		$ 10,110,405			$ 4,796,478
Prologis US Logistics Venture [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage		55.00%	[1]	55.00%	55.00%	[1]
Operating Partnership noncontrolling interest	[1]	$ 2,677,642			$ 427,307
Total Investment in Real Estate	[1]	6,533,089			$ 1,006,183
Debt	[1]	$ 724,256
Prologis North American Industrial Fund [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage		66.10%			66.10%
Operating Partnership noncontrolling interest		$ 490,444			$ 544,718
Total Investment in Real Estate		2,571,092			2,771,299
Debt		$ 1,083,650			$ 1,188,836
Prologis Brazil Logistics Partners Fund I [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage	[2]	50.00%			50.00%
Operating Partnership noncontrolling interest	[2]	$ 49,313			$ 68,533
Other Consolidated Entities [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership	[3]	various
Operating Partnership noncontrolling interest	[3]	$ 102,828			119,343
Total Investment in Real Estate	[3]	1,006,224			1,018,996
Debt	[3]	14,603			18,051
Prologis, L.P. [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests		3,320,227			1,159,901
Total Investment in Real Estate		24,247,084			19,399,364
Debt		11,626,831			9,336,977
Prologis, L.P. [Member] | Non-controlling Interests [Member]
Noncontrolling Interest [Line Items]
Limited partners in Prologis, L.P.	[4],[5]	432,674			48,189
Debt		1,822,509			1,206,887
Prologis Inc [Member]
Noncontrolling Interest [Line Items]
Total Investment in Real Estate		10,110,405			4,796,478
Debt		1,822,509			1,206,887
Prologis Inc [Member] | Non-controlling Interests [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests		$ 3,752,901			$ 1,208,090

[1] As discussed in Note 3, USLV acquired a portfolio of properties from KTR in May 2015. We received a contribution of $2.3 billion from our venture partner to fund their share of this acquisition.

[2] The assets of Prologis Brazil Logistics Partners Fund I (“Brazil Fund”) are primarily investments in unconsolidated entities of $103.1 million and $152.0 million at December 31, 2015 and 2014, respectively. For additional information on our unconsolidated investments, see Note 5.

[3] This line item includes our two partnerships that have issued limited partnership units to third parties, as discussed above, along with various other consolidated entities. At December 31, 2015 and 2014, limited partnership units were exchangeable into cash or, at our option, 1,835 and 1,887 shares, respectively, of the Parent’s common stock. In 2015, 52 limited partnership units were redeemed for cash of $3.2 million. All of these outstanding limited partnership units receive quarterly cash distributions equal to the quarterly dividends paid on our common stock pursuant to the terms of the applicable partnership agreements.

[4] Includes 8.9 million of Class A Units issued in the fourth quarter of 2015. See Note 11 for further discussion of our Class A Units.

[5] We issued 4.7 million common limited partnership units in the Operating Partnership, principally in connection with the KTR acquisition. At December 31, 2015 and 2014, excluding the Class A Units, there were common limited partnership units in the Operating Partnership that were exchangeable into cash or, at our option, 6.4 million and 1.8 million shares of the Parent’s common stock. At December 31, 2015 and 2014, the fair value of the 6.4 million and 1.8 million shares, respectively, would be $275.0 million and $76.0 million, respectively, based on the closing stock price of the Parent’s common stock. At December 31, 2015 and 2014, there were 1.2 million and 0.1 million LTIP Units (as defined in Note 13) outstanding, respectively, associated with our long-term compensation plan that are not exchangeable into common units of the Operating Partnership and redeemable into the Parent’s common stock until they vest and other applicable conditions are met. All of these outstanding limited partnership units receive quarterly cash distributions equal to the quarterly distributions paid on our common stock pursuant to the terms of the partnership agreement.