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Partners' Capital of Prologis, L.P. - Additional Information (Detail) - $ / shares
shares in Millions
12 Months Ended
Aug. 22, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2015
Shareholders Equity [Line Items]          
Dividends paid   $ 2.12 $ 1.92 $ 1.76  
Common Units [Member]          
Shareholders Equity [Line Items]          
Dividends per share entitled, issued in acquisition         $ 0.40
Common Units [Member] | DCT Transaction [Member]          
Shareholders Equity [Line Items]          
Common limited partnership units, shares 3.6        
Class A Common [Member]          
Shareholders Equity [Line Items]          
Dividends per share entitled, issued in acquisition         $ 0.64665
Dividends paid   $ 2.58660 $ 2.58660 $ 2.58660  
Class A units convertible into common limited partnership units   8.1 8.4    
Limited partnership unit, redemption price per share   $ 43.11