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, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total weighted average potential dilutive shares and units outstanding	27,650	30,578	27,896	30,638
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Total weighted average potentially dilutive Class A Units	8,005	8,050	8,006	8,056
Total weighted average potentially dilutive other limited partnership units	299	299	299	299
Total weighted average potentially dilutive equity awards	6,471	9,039	6,812	9,754
Total weighted average potential dilutive shares and units outstanding	14,775	17,388	15,117	18,109
Total weighted average potential dilutive common limited partnership units	12,875	13,190	12,779	12,529