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		12 Months Ended
		Dec. 31, 2016 USD ($) ft² Property Venture	Dec. 31, 2015 USD ($) ft² Property Venture	Dec. 31, 2014 USD ($) ft² Property Venture
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		9	9	9
Number of properties owned | Property		1,367	1,350	1,278
Square feet | ft²		291	277	261
Total assets		$ 23,057	$ 22,553	$ 22,616
Third-party debt		6,546	6,250	6,531
Total liabilities		7,876	7,593	7,649
Our investment balance	[1]	4,058	4,585	4,666
Revenues		1,943	1,832	1,992	[2]
Net earnings		$ 562	$ 451	$ 408	[2]
U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		1	1	1
Number of properties owned | Property		369	391	392
Square feet | ft²		50	50	50
Total assets		$ 4,238	$ 4,408	$ 4,403
Third-party debt		1,414	1,433	1,594
Total liabilities		1,540	1,550	1,697
Our investment balance	[1]	435	690	712
Revenues		395	382	541	[2]
Net earnings		$ 57	$ 35	$ 55	[2]
Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2	2
Number of properties owned | Property		213	205	198
Square feet | ft²		42	39	37
Total assets		$ 2,793	$ 2,482	$ 2,653
Third-party debt		739	657	679
Total liabilities		814	708	717
Our investment balance	[1]	845	786	825
Revenues		242	228	170	[2]
Net earnings		$ 71	$ 78	$ (1)	[2]
Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		4	4	4
Number of properties owned | Property		700	688	636
Square feet | ft²		163	159	148
Total assets		$ 10,853	$ 11,343	$ 11,440
Third-party debt		2,446	2,640	2,621
Total liabilities		3,283	3,584	3,501
Our investment balance	[1]	2,327	2,707	2,773
Revenues		964	947	1,001	[2]
Net earnings		$ 333	$ 261	$ 268	[2]
Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2	2
Number of properties owned | Property		85	66	52
Square feet | ft²		36	29	26
Total assets		$ 5,173	$ 4,320	$ 4,120
Third-party debt		1,947	1,520	1,637
Total liabilities		2,239	1,751	1,734
Our investment balance	[1]	451	402	356
Revenues		342	275	280	[2]
Net earnings		$ 101	$ 77	$ 86	[2]
Weighted Average [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	27.90%	31.60%	32.00%
Weighted Average [Member] | U.S. [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	14.90%	22.50%	24.30%
Weighted Average [Member] | Other Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	43.90%	43.80%	42.90%
Weighted Average [Member] | Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	35.10%	38.90%	38.80%
Weighted Average [Member] | Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	15.10%	15.00%	15.00%

[1] The difference between our ownership interest of a venture’s equity and our investment balance at December 31, 2016, 2015 and 2014, 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 ($469.9 million, $430.7 million and $322.9 million, respectively); (ii) recording additional costs associated with our investment in the venture ($124.1 million, $122.1 million and $117.5 million respectively); and (iii) advances to a venture ($166.1 million, $189.7 million and $125.7 million, respectively).

[2] We had significant activity with our U.S. and Other Americas unconsolidated co-investment ventures in 2014 as explained in Notes 3 and 4. We began consolidating NAIF in 2014. We formed and invested in FIBRA Prologis in 2014 and in connection with this transaction, we concluded our unconsolidated co-investment venture in Mexico.

[3] 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.