Noncontrolling Interests - Additional Information (Detail) ft² in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2014 USD ($) ft² Property	Dec. 31, 2015		Dec. 31, 2013 USD ($)	May. 29, 2015	Dec. 31, 2014	[1]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage		100.00%
Prologis, L.P. [Member]
Noncontrolling Interest [Line Items]
Description of conversion rate		One share of common stock to one unit
Prologis US Logistics Venture [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage		55.00%	[1]		55.00%	55.00%
Prologis US Logistics Venture [Member] | Prologis, L.P. [Member]
Noncontrolling Interest [Line Items]
Parent Company's Ownership Percentage	55.00%
Number of properties sold | Property	66
Square Feet and Acres | ft²	12.8
Proceeds for contributed properties	$ 1,000.0
Prologis Inc [Member]
Noncontrolling Interest [Line Items]
Net earnings attributable to noncontrolling interest				$ 10.1
(Loss) from continuing operations				0.5
Income from discontinued operations				$ 10.6

[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.