Noncontrolling Interests - Noncontrolling Interest Summary (Detail) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2017	Dec. 31, 2016
Noncontrolling Interest [Line Items]
Operating Partnership noncontrolling interest		$ 2,516,015	$ 3,072,469
Noncontrolling interests		2,921,554	3,467,059
Total Assets		29,814,958	30,249,932
Total Liabilities		12,146,537	11,791,792
Non-controlling Interests [Member]
Noncontrolling Interest [Line Items]
Total Assets		7,674,218	9,678,752
Total Liabilities		$ 950,126	$ 1,871,094
Prologis US Logistics Venture [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage		55.00%	55.00%
Operating Partnership noncontrolling interest		$ 2,419,744	$ 2,424,800
Total Assets		6,180,047	6,201,278
Total Liabilities		$ 810,769	$ 797,593
Prologis North American Industrial Fund [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage	[1]	100.00%	66.10%
Operating Partnership noncontrolling interest	[1]	$ 0	$ 486,648
Total Assets	[1]	0	2,479,072
Total Liabilities	[1]	$ 0	$ 1,038,708
Prologis Brazil Logistics Partners Fund I [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage	[2]	100.00%	50.00%
Operating Partnership noncontrolling interest	[2]	$ 0	$ 61,836
Total Assets	[2]	0	131,581
Total Liabilities	[2]	$ 0	$ 720
Other Consolidated Entities [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership	[3]	various	various
Operating Partnership noncontrolling interest	[3]	$ 96,271	$ 99,185
Total Assets	[3]	1,494,171	866,821
Total Liabilities	[3]	139,357	34,073
Prologis, L.P. [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests		2,516,015	3,072,469
Total Assets		29,814,958	30,249,932
Total Liabilities		12,146,537	11,791,792
Prologis, L.P. [Member] | Non-controlling Interests [Member]
Noncontrolling Interest [Line Items]
Limited partners in Prologis, L.P.	[4],[5]	405,539	394,590
Total Assets	[4],[5]	0	0
Total Liabilities	[4],[5]	0	0
Prologis Inc [Member]
Noncontrolling Interest [Line Items]
Total Assets		7,674,218	9,678,752
Total Liabilities		950,126	1,871,094
Prologis Inc [Member] | Non-controlling Interests [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests		$ 2,921,554	$ 3,467,059

[1] In March 2017, we acquired all of our partner’s interest for $710.2 million. The difference between the amount we paid and the noncontrolling interest balance was adjusted through Additional Paid-in Capital with no gain or loss recognized.

[2] In March 2017, we acquired all of our partner’s interest for $79.8 million. The difference between the amount we paid and the noncontrolling interest balance was adjusted through Additional Paid-in Capital with no gain or loss recognized. At December 31, 2016, the assets of the Brazil Fund were primarily investments in unconsolidated entities of $113.1 million. For additional information on our unconsolidated investments, see Note 3.

[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 March 31, 2017, and December 31, 2016, limited partnership units were redeemable for cash or, at our option, 1.8 million shares of the Parent’s common stock. In 2017, limited partnership units were redeemed for 40 thousand shares of the Parent’s common stock.

[4] At March 31, 2017, and December 31, 2016, excluding the Class A Units, there were common limited partnership units in the Operating Partnership outstanding that were redeemable for cash or, at our option, 4.1 million shares and 4.6 million shares of the Parent’s common stock with a fair value of $214.3 million and $241.8 million, respectively, based on the closing stock price of the Parent’s common stock. During 2017, unitholders redeemed 0.6 million common limited partnership units for an equal number of shares of the Parent’s common stock with a value of $15.8 million. At March 31, 2017, and December 31, 2016, there were 3.6 million and 2.2 million LTIP Units (as defined in Note 7) outstanding, respectively, associated with our long-term compensation plan that are convertible into common units of the Operating Partnership after they vest and other applicable conditions are met.

[5] We had 8.9 million Class A Units that were convertible into 8.6 million and 8.7 million common limited partnership units of the Operating Partnership at March 31, 2017, and December 31, 2016, respectively.