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Noncontrolling Interests - Noncontrolling Interest Summary (Parenthetical) (Detail)
shares in Thousands, ft² in Millions, $ in Billions
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2020
USD ($)
ft²
Property
Mar. 31, 2020
shares
Dec. 31, 2019
shares
Mar. 31, 2019
shares
Dec. 31, 2018
shares
Industrial Property Trust, Inc. [Member] | Prologis U S Logistics Venture          
Noncontrolling Interest [Line Items]          
Number of operating properties acquired | Property 127        
Square feet of properties | ft² 19.0        
Business acquisition consideration transferred | $ $ 2.0        
Class A Common [Member]          
Noncontrolling Interest [Line Items]          
Outstanding limited partnership units, exchanged   8,100 8,100    
Units outstanding   8,600 8,600    
Common Unit [Member]          
Noncontrolling Interest [Line Items]          
Outstanding limited partnership units, exchanged   8,500 6,200    
Common Stock [Member]          
Noncontrolling Interest [Line Items]          
Liberty Transaction, units issued   106,723      
Other Consolidated Entities [Member]          
Noncontrolling Interest [Line Items]          
Outstanding limited partnership units, exchanged   300 300    
Other Consolidated Entities [Member] | Common Stock [Member]          
Noncontrolling Interest [Line Items]          
Outstanding limited partnership units   300 300    
Prologis, L.P. [Member] | Class A Common [Member] | Limited Partners [Member]          
Noncontrolling Interest [Line Items]          
Units outstanding   8,613 8,613 8,849 8,849
Prologis, L.P. [Member] | Common [Member] | Limited Partners [Member]          
Noncontrolling Interest [Line Items]          
Units outstanding   13,158 9,933 11,210 10,516
Liberty Transaction, units issued   2,288