Business Combinations (Details Textual)	3 Months Ended	6 Months Ended					6 Months Ended		6 Months Ended	3 Months Ended
	Jun. 30, 2011 EUR (€)	Jun. 30, 2012 USD ($) Transactions	Jun. 30, 2011 USD ($)	Jun. 30, 2012 EUR (€)	May 31, 2011 Buildings	Jun. 30, 2012 AMB [Member] USD ($)	Jun. 30, 2012 Prologis North American Industrial Fund [Member] USD ($)	Apr. 30, 2012 Prologis North American Industrial Fund [Member]	Jun. 30, 2012 Prologis California [Member] USD ($)	Jun. 30, 2011 PEPR [Member] USD ($)	Jun. 30, 2011 PEPR [Member] EUR (€)	Jun. 30, 2012 PEPR [Member] USD ($)	Jun. 30, 2012 PEPR [Member] EUR (€)
Business Acquisition [Line Items]
Business acquisition purchase price						$ 5,900,000,000						$ 85,900,000	€ 59,600,000
Percentage interest acquired in Prologis North American Fund II								63.00%
Percentage owned in unconsolidated co-investment venture							100.00%
Business acquisition, loan repayment							336,100,000
Business acquisition purchase price allocation real estate							1,600,000,000		496,300,000
Business acquisition purchase price allocation other assets							31,700,000		17,700,000
Business acquisition purchase price allocation debt							875,400,000		150,000,000
Gain on acquisition of business									273,000,000	1,000,000,000	715,800,000
Business Combinations (Textual) [Abstract]
Acquisition of additional ordinary units					96,500,000
Acquisition of convertible preferred units of PEPR					2,700,000
Global line borrowings and bridge facility	500,000,000
Mark to market equity investment in PEPR from carrying value				486,000,000
Preliminary aggregate purchase price		1,600,000,000		1,100,000,000
Number of transactions in acquisitions		2
Rental income included in pro forma result		77,800,000	84,700,000
Rental expenses included in pro forma result		$ 18,900,000	$ 19,600,000