Unconsolidated Entities - Summary of Operating Information and Financial Position of Unconsolidated Co-investment Ventures (Detail) - Unconsolidated Co-Investment Ventures [Member] ft² in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2017 USD ($) ft² Property Venture	Jun. 30, 2016 USD ($) ft² Property Venture	Jun. 30, 2017 USD ($) ft² Property Venture	Jun. 30, 2016 USD ($) ft² Property Venture	Dec. 31, 2016 USD ($) ft² Property Venture
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		9	9	9	9	9
Number of operating properties owned | Property		1,384	1,355	1,384	1,355	1,367
Square feet | ft²		295	284	295	284	291
Total assets		$ 24,843	$ 23,456	$ 24,843	$ 23,456	$ 23,057
Third-party debt		6,811	6,620	6,811	6,620	6,546
Total liabilities		8,344	8,047	8,344	8,047	7,876
Our investment balance	[1]	4,383	4,328	4,383	4,328	$ 4,058
Revenues		508	491	1,008	966
Net earnings		$ 223	$ 115	$ 373	$ 254
U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		1	1	1	1	1
Number of operating properties owned | Property		384	379	384	379	369
Square feet | ft²		52	49	52	49	50
Total assets		$ 4,346	$ 4,228	$ 4,346	$ 4,228	$ 4,238
Third-party debt		1,400	1,425	1,400	1,425	1,414
Total liabilities		1,620	1,504	1,620	1,504	1,540
Our investment balance	[1]	545	518	545	518	$ 435
Revenues		105	98	209	196
Net earnings		$ 15	$ 6	$ 51	$ 36
Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2	2	2	2
Number of operating properties owned | Property		215	209	215	209	213
Square feet | ft²		43	41	43	41	42
Total assets		$ 2,791	$ 2,694	$ 2,791	$ 2,694	$ 2,793
Third-party debt		728	677	728	677	739
Total liabilities		812	772	812	772	814
Our investment balance	[1]	836	848	836	848	$ 845
Revenues		66	59	130	116
Net earnings		$ 22	$ 19	$ 39	$ 33
Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture	[2],[3]	4	4	4	4	4
Number of operating properties owned | Property		702	690	702	690	700
Square feet | ft²		164	160	164	160	163
Total assets		$ 12,178	$ 11,188	$ 12,178	$ 11,188	$ 10,853
Third-party debt		2,595	2,566	2,595	2,566	2,446
Total liabilities		3,536	3,521	3,536	3,521	3,283
Our investment balance	[1]	2,505	2,464	2,505	2,464	$ 2,327
Revenues		248	248	492	492
Net earnings		$ 93	$ 68	$ 166	$ 141
Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2	2	2	2
Number of operating properties owned | Property		83	77	83	77	85
Square feet | ft²		36	34	36	34	36
Total assets		$ 5,528	$ 5,346	$ 5,528	$ 5,346	$ 5,173
Third-party debt		2,088	1,952	2,088	1,952	1,947
Total liabilities		2,376	2,250	2,376	2,250	2,239
Our investment balance	[1]	497	498	497	498	$ 451
Revenues		89	86	177	162
Net earnings		$ 93	$ 22	$ 117	$ 44
Weighted Average [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	26.90%	28.80%	26.90%	28.80%	27.90%
Weighted Average [Member] | U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	14.20%	17.60%	14.20%	17.60%	14.90%
Weighted Average [Member] | Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	44.00%	43.60%	44.00%	43.60%	43.90%
Weighted Average [Member] | Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	33.00%	36.20%	33.00%	36.20%	35.10%
Weighted Average [Member] | Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[4]	15.10%	15.00%	15.10%	15.00%	15.10%

[1] The difference between our ownership interest of a venture’s equity and our investment balance at June 30, 2017, and December 31, 2016, results principally from three types of transactions: (i) deferring a portion of the gains we recognize from a contribution of a property to a venture ($459.4 million and $469.9 million, respectively); (ii) recording additional costs associated with our investment in a venture ($125.0 million and $124.1 million, respectively); and (iii) advances to a venture ($300.5 million and $166.1 million, respectively), which increased primarily from the gross promotes that were earned during the second quarter of 2017 and expected to be paid in the third quarter of 2017.

[2] In February 2017, we formed the Prologis United Kingdom Logistics Venture (“UKLV”), an unconsolidated co-investment venture in which we have a 15.0% ownership interest. UKLV will acquire land, develop buildings and operate and hold logistics real estate assets in the United Kingdom (“U.K.”). Upon formation, we, along with our venture partner, committed £380.0 million ($493.2 million at June 30, 2017), of which our share is £57.0 million ($74.0 million at June 30, 2017). During the six months ended June 30, 2017, we contributed 1.4 million square feet of stabilized properties, 0.5 million square feet of properties under development and 144.8 acres of land for £269.5 million ($336.4 million). We expect to continue to contribute properties and land into UKLV.

[3] In January 2017, we sold our investment in ELV to our fund partner for $84.3 million and ELV contributed its properties to PTELF in exchange for equity interests.

[4] Represents our weighted average ownership interest in all co-investment ventures based on each entity’s contribution of total assets, before depreciation, net of other liabilities.