Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share Unit (Parenthetical) (Detail) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total potential dilutive shares and units outstanding	25,277	18,041	29,943
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total weighted average potentially dilutive limited partnership units outstanding	10,610	3,898	1,932
Total potentially dilutive stock awards outstanding	8,444	7,299	14,366
Total weighted average potentially dilutive shares and units from exchangeable debt outstanding	0	2,173	11,879
Total potential dilutive shares and units outstanding	19,054	13,370	28,177
Total potential dilutive shares and units outstanding limited partnership	6,223	4,671	1,766