Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share Unit (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 385,480	$ 450,639	$ 383,784	$ 347,047	$ 596,568	$ 346,345	$ 334,611	$ 365,902	$ 1,566,950	$ 1,643,426	$ 1,641,931
Net earnings/Noncontrolling interest attributable to exchangeable limited partnership units									46,986	49,743	46,280
Adjusted net earnings attributable to common stockholders – Diluted									$ 1,613,936	$ 1,693,169	$ 1,688,211
Weighted average common shares/units outstanding – Basic									630,580	567,367	530,400
Incremental weighted average effect on exchange of limited partnership units									19,154	17,768	15,945
Incremental weighted average effect of equity awards									5,169	5,104	5,955
Weighted average common shares/partnership units outstanding - Diluted									654,903	590,239	552,300
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.61	$ 0.71	$ 0.61	$ 0.55	$ 0.95	$ 0.60	$ 0.63	$ 0.69	$ 2.48	$ 2.90	$ 3.10
Diluted	$ 0.61	$ 0.71	$ 0.60	$ 0.55	$ 0.94	$ 0.60	$ 0.62	$ 0.68	$ 2.46	$ 2.87	$ 3.06
Net earnings attributable to exchangeable other limited partnership units									$ (46,986)	$ (49,743)	$ (46,280)
Prologis, L.P. [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic									1,613,615	1,692,313	1,686,945
Net earnings/Noncontrolling interest attributable to exchangeable limited partnership units									(321)	(856)	(1,266)
Adjusted net earnings attributable to common stockholders – Diluted									$ 1,613,936	$ 1,693,169	$ 1,688,211
Weighted average common shares/units outstanding – Basic									641,128	575,798	536,335
Incremental weighted average effect on exchange of Class A convertible units									8,231	8,446	8,607
Incremental weighted average effect on exchange of limited partnership units									375	891	1,403
Incremental weighted average effect of equity awards									5,169	5,104	5,955
Weighted average common shares/partnership units outstanding - Diluted									654,903	590,239	552,300
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic									$ 2.48	$ 2.90	$ 3.10
Diluted									$ 2.46	$ 2.87	$ 3.06
Net earnings attributable to exchangeable other limited partnership units									$ 321	$ 856	$ 1,266
Prologis, L.P. [Member] | Class A Common [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic									(20,454)	(24,465)	(26,642)
Adjusted net earnings attributable to common stockholders – Diluted									20,454	24,465	26,642
Prologis, L.P. [Member] | Common Unit [Member]
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic									$ 1,593,161	$ 1,667,848	$ 1,660,303