Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share or Unit (Parenthetical) (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total weighted average potential dilutive shares and units outstanding	30,578	28,145	30,638	27,798
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total weighted average potentially dilutive Class A Units	8,050	8,337	8,056	8,347
Total weighted average potentially dilutive other limited partnership units	299	363	299	448
Total weighted average potentially dilutive equity awards	9,039	8,589	9,754	8,161
Total weighted average potential dilutive shares and units outstanding	17,388	17,289	18,109	16,956
Total weighted average potential dilutive common limited partnership units	13,190	10,856	12,529	10,842