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Supplemental Cash Flow Information - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions		12 Months Ended
	Aug. 22, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 31, 2019	Jul. 31, 2017
Supplemental Cash Flow Information [Line Items]
Noncash acquisition, real estate acquired			$ 11.8
Lease ROU assets		$ 523.8
Lease liabilities		527.3
Capitalization for equity based compensation expense		21.4	26.4	$ 28.8
Partners’ interest through distribution of an operating property		$ 11.4
Acquired notes receivable backed by real estate				$ 53.8
DCT Transaction [Member]
Supplemental Cash Flow Information [Line Items]
Business acquisition consideration transferred	$ 8,500.0
Limited Partners [Member] \| Prologis, L.P. [Member] \| Common [Member]
Supplemental Cash Flow Information [Line Items]
PLD units redeemed for common shares		1.2		1.5
Unconsolidated Co-Investment Ventures [Member]
Supplemental Cash Flow Information [Line Items]
Equity ownership interest received		$ 80.9
Unconsolidated Entities [Member]
Supplemental Cash Flow Information [Line Items]
Equity ownership interest received		$ 646.8	$ 386.7	$ 153.3
Prologis Brazil Logistics Venture [Member] \| Unconsolidated Co-Investment Ventures [Member]
Supplemental Cash Flow Information [Line Items]
Ownership percentage in property fund		20.00%			20.00%
Prologis China Core Logistics Fund, LP [Member] \| Unconsolidated Co-Investment Ventures [Member]
Supplemental Cash Flow Information [Line Items]
Ownership percentage in property fund		15.60%	0.00%
Prologis Targeted U S Logistics Fund [Member]
Supplemental Cash Flow Information [Line Items]
Equity ownership interest received				1,100.0
Acquired notes receivable backed by real estate				19.5
Secured Debt				$ 956.0		$ 956.0
Prologis Targeted U S Logistics Fund [Member] \| Unconsolidated Co-Investment Ventures [Member]
Supplemental Cash Flow Information [Line Items]
Ownership percentage in property fund		27.30%	27.40%