Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share Unit (Parenthetical) (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total potential dilutive shares and units outstanding	24,879	12,887	24,477	16,407
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	10,633	1,836	10,656	1,860
Total potentially dilutive stock awards outstanding	7,176	7,456	6,854	7,408
Total weighted average potentially dilutive shares and units from exchangeable debt outstanding	0	0	0	4,382
Total potential dilutive shares and units outstanding	17,809	9,292	17,510	13,650
Total potential dilutive shares and units outstanding limited partnership	7,070	3,595	6,967	2,757