Unconsolidated Entities - Summary of Unconsolidated Co-investment Ventures (Detail) - Unconsolidated Co-Investment Ventures [Member] $ in Thousands, ft² in Millions		12 Months Ended
		Dec. 31, 2015 USD ($) ft² Property Venture	Dec. 31, 2014 USD ($) ft² Property Venture		Dec. 31, 2013 USD ($) ft² Property Venture
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		9	9		10
Number of properties owned | Property		1,350	1,278		1,323
Square feet | ft²		276.5	260.7		264.3
Total assets		$ 22,553,000	$ 22,616,000		$ 23,818,000
Third-party debt		6,250,000	6,531,000		7,665,000
Total liabilities		7,593,000	7,649,000		9,143,000
Our investment balance	[1]	4,585,000	4,666,000		4,250,000
Revenues		1,832	1,992	[2]	1,727	[2]
Net operating income		1,418	1,533	[2]	1,309	[2]
Net earnings		$ 451	$ 408	[2]	$ 237	[2]
Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		3	3		4
Number of properties owned | Property		596	590		709
Square feet | ft²		89.0	87.1		108.5
Total assets		$ 6,890,000	$ 7,056,000		$ 8,004,000
Third-party debt		2,090,000	2,273,000		2,989,000
Total liabilities		2,258,000	2,414,000		3,167,000
Our investment balance	[1]	1,476,000	1,537,000		1,194,000
Revenues		610	711	[2]	702	[2]
Net operating income		465	527	[2]	513	[2]
Net earnings		$ 113	$ 54	[2]	$ 58	[2]
Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		4	4		4
Number of properties owned | Property		688	636		571
Square feet | ft²		158.3	147.4		132.9
Total assets		$ 11,343,000	$ 11,440,000		$ 11,800,000
Third-party debt		2,640,000	2,621,000		2,979,000
Total liabilities		3,584,000	3,501,000		4,095,000
Our investment balance	[1]	2,707,000	2,773,000		2,703,000
Revenues		947	1,001	[2]	801	[2]
Net operating income		741	787	[2]	621	[2]
Net earnings		$ 261	$ 268	[2]	$ 131	[2]
Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Number of ventures | Venture		2	2		2
Number of properties owned | Property		66	52		43
Square feet | ft²		29.2	26.2		22.9
Total assets		$ 4,320,000	$ 4,120,000		$ 4,014,000
Third-party debt		1,520,000	1,637,000		1,697,000
Total liabilities		1,751,000	1,734,000		1,881,000
Our investment balance	[1]	402,000	356,000		353,000
Revenues		275	280	[2]	224	[2]
Net operating income		212	219	[2]	175	[2]
Net earnings		$ 77	$ 86	[2]	$ 48	[2]
Weighted Average [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	31.60%	32.00%		29.20%
Weighted Average [Member] | Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	29.80%	31.00%		22.70%
Weighted Average [Member] | Europe [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	38.90%	38.80%		39.00%
Weighted Average [Member] | Asia [Member]
Schedule Of Equity Method Investments [Line Items]
Our weighted average ownership	[3]	15.00%	15.00%		15.00%

[1] The difference between our ownership interest of a venture’s equity and our investment balance 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 ($430.7 million, $322.9 million and $139.6 million at December 31, 2015, 2014 and 2013, respectively); (ii) recording additional costs associated with our investment in the venture; and (iii) advances to a venture.

[2] We had significant activity with our unconsolidated co-investment ventures in 2014 and 2013 as explained in both Note 3 and Note 4. We formed and invested in FIBRA Prologis in 2014. In connection with this transaction, we concluded our unconsolidated co-investment venture in Mexico. We began consolidating NAIF in 2014. During 2013, we concluded three co-investment ventures and we started two new co-investment ventures.

[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.