Earnings Per Common Share or Unit - Computation of Basic and Diluted Earnings Per Share Unit (Parenthetical) (Detail) - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items] | |||
| Total potential dilutive shares and units outstanding | 25,128 | 25,277 | 18,041 |
| 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 | 10,010 | 10,610 | 3,898 |
| Total potentially dilutive stock awards outstanding | 9,183 | 8,444 | 7,299 |
| Total weighted average potentially dilutive shares and units from exchangeable debt outstanding | 0 | 0 | 2,173 |
| Total potential dilutive shares and units outstanding | 19,193 | 19,054 | 13,370 |
| Total potential dilutive shares and units outstanding limited partnership | 5,935 | 6,223 | 4,671 |