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Number of co-investment ventures.

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Percentage added to earned amount under plan

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Percentage of excess award amount.

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Percentage Of Market Capitalization Provided To Participants Of Plan

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Percentage of performance pool over excess value under plan.

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Performance period.

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Performance period for measuring fair value of outstanding awards.

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Share based compensation arrangement by share based payment award equity instruments other than options aggregate grant date fair value.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Long-Term Compensation - Additional Information (Detail)		6 Months Ended	12 Months Ended
	Jun. 03, 2016 USD ($)	Jun. 30, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) Venture shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options outstanding		3,400,000
Stock options exercisable		3,400,000
Stock options outstanding, weighted average exercise price \| $ / shares		$ 33.50
Stock options exercisable, weighted average exercise price \| $ / shares		$ 33.50
Options granted		0	0
Restricted Operating Partnership Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount realized during conversion of prior held shares		893,000
Number of units outstanding		2,137,000	1,244,000
Restricted Operating Partnership Units [Member] \| 2014-2016 and 2015-2017 performance periods [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of units outstanding		2,500,000
Prologis Out-Performance Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outperformance hurdle, above MSCI US REIT Index		1.00%
Performance pool as percentage of excess value, if outperformance hurdle is met		3.00%
Cash incentive award maximum \| $		$ 75,000,000
Percentage of equity market capitalization		0.50%
Performance Period		3 years
Percentage of excess award amount		0.333%
Aggregate fair value \| $	$ 26,600,000
Assumed risk free interest rate	0.99%
Expected volatility rate	20.50%
Performance period used for fair value assumption		3 years
Prologis Promote Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of ventures \| Venture			2
Total value of awards \| $			$ 4,700,000
Prologis Promote Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount realized during conversion of prior held shares		53,000
Aggregate fair value \| $		$ 2,300,000
Prologis Promote Plan [Member] \| Long-Term Incentive Plan Units (LTIP units) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Amount realized during conversion of prior held shares		114,000
Aggregate fair value \| $		$ 4,900,000