Stockholders' Equity of Prologis Inc. - Additional Information (Detail) $ / shares in Units, $ in Thousands			12 Months Ended
	Feb. 04, 2020 shares	Aug. 22, 2018 shares	Dec. 31, 2020 USD ($) Agent $ / shares shares	Dec. 31, 2019 shares
Shareholders Equity [Line Items]
Common stock, shares authorized			2,000,000,000.0	1,000,000,000.0
Aggregate price of shares repurchased and retired | $			$ 34,829
Beneficial interest of outstanding shares			50.00%
Beneficial interest of outstanding shares by single person or persons acting as group			9.80%
Percentage of ownership restrictions			25.00%
Percentage of REIT taxable income computed without regard to the dividends paid deduction and net capital gains			90.00%
Series Q Preferred Stock [Member]
Shareholders Equity [Line Items]
Repurchased shares			100,000
Recognized loss | $			$ 2,300
Preferred stock dividend rate percentage			8.54%	8.54%
At the Market Offering [Member]
Shareholders Equity [Line Items]
Maximum proceeds from sale of stock | $			$ 1,500,000
Number of designated agents | Agent			20
Agents fee percentage			2.00%
Equity issued			0
Parent [Member]
Shareholders Equity [Line Items]
Common stock shares authorized to be issued			2,100,000,000
Common stock, shares authorized			2,000,000,000.0
Preferred stock, shares authorized			100,000,000
Common Stock [Member]
Shareholders Equity [Line Items]
Issuance of units related to acquisitions, units			106,723,000
Repurchase and retire of common stock shares			539,000
Aggregate price of shares repurchased and retired | $			$ 5
Weighted average purchase price | $ / shares			$ 64.66
Common Stock [Member] | Maximum [Member]
Shareholders Equity [Line Items]
Aggregate purchase price of common stock			1,000,000,000.0
Common Stock [Member] | Liberty Transaction [Member]
Shareholders Equity [Line Items]
Issuance of units related to acquisitions, units	106,700,000
Common Stock [Member] | DCT Transaction [Member]
Shareholders Equity [Line Items]
Issuance of units related to acquisitions, units		96,200,000