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		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]
Net earnings attributable to common stockholders/unit holders - Basic	$ 334,611	$ 266,943	$ 700,513	$ 470,198
Net earnings attributable to exchangeable limited partnership units	10,216	7,798	20,909	13,765
Adjusted net earnings attributable to common stockholders – Diluted	$ 344,827	$ 274,741	$ 721,422	$ 483,963
Weighted average common shares/units outstanding – Basic	532,639	530,040	532,427	529,400
Incremental weighted average effect on exchange of limited partnership units	16,847	16,364	16,560	16,409
Incremental weighted average effect of equity awards	5,029	5,710	5,079	4,703
Weighted average common shares/partnership units outstanding - Diluted	554,515	552,114	554,066	550,512
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.63	$ 0.50	$ 1.32	$ 0.89
Diluted	$ 0.62	$ 0.50	$ 1.30	$ 0.88
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	$ 344,633	$ 274,320	$ 721,058	$ 483,198
Net earnings attributable to exchangeable limited partnership units	194	421	364	765
Adjusted net earnings attributable to common stockholders – Diluted	$ 344,827	$ 274,741	$ 721,422	$ 483,963
Weighted average common shares/units outstanding – Basic	540,084	536,060	539,547	535,392
Incremental weighted average effect on exchange of Class A convertible units	8,477	8,626	8,495	8,645
Incremental weighted average effect on exchange of limited partnership units	925	1,718	945	1,772
Incremental weighted average effect of equity awards	5,029	5,710	5,079	4,703
Weighted average common shares/partnership units outstanding - Diluted	554,515	552,114	554,066	550,512
Net earnings per share/unit attributable to common stockholders/unitholders -
Basic	$ 0.63	$ 0.50	$ 1.32	$ 0.89
Diluted	$ 0.62	$ 0.50	$ 1.30	$ 0.88
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	$ (5,324)	$ (4,347)	$ (11,177)	$ (7,678)
Adjusted net earnings attributable to common stockholders – Diluted	5,324	4,347	11,177	7,678
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	$ 339,309	$ 269,973	$ 709,881	$ 475,520