Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities:
Consolidated net earnings	$ 296,932	$ 213,097
Adjustments to reconcile net earnings to net cash provided by operating activities:
Straight-lined rents	(16,661)	(18,644)
Stock-based compensation awards, net	9,755	8,123
Depreciation and amortization	177,431	191,825
Earnings from unconsolidated entities, net	(24,768)	(13,995)
Distributions and changes in operating receivables from unconsolidated entities	24,937	1,302
Amortization of debt and lease intangibles	2,492	7,682
Non-cash merger, acquisition and other integration expenses		2,575
Impairment of real estate properties and other assets		19,320
Net gains on dispositions in discontinued operations	(5,834)	(11,249)
Gains on acquisitions and dispositions of investments in real estate, net	(338,845)	(267,771)
Losses (gains) on early extinguishment of debt, net	17,351	(5,419)
Unrealized foreign currency and derivative losses (gains), net	(1,955)	24,243
Deferred income tax expense (benefit)	(3,640)	1,051
Decrease (increase) in restricted cash, accounts receivable and other assets	32,936	(45,433)
Decrease in accounts payable and accrued expenses and other liabilities	(40,991)	(35,272)
Net cash provided by operating activities	129,140	71,435
Investing activities:
Real estate development activity	(161,673)	(171,726)
Real estate acquisitions	(55,907)	(10,375)
Tenant improvements and lease commissions on previously leased space	(29,950)	(30,326)
Non-development capital expenditures	(13,012)	(12,027)
Investments in and advances to unconsolidated entities, net	(258,414)	(31,724)
Return of investment from unconsolidated entities	82,847	34,571
Proceeds from dispositions and contributions of real estate properties	3,250,691	715,496
Net cash provided by investing activities	2,814,582	176,561
Financing activities:
Proceeds from issuance of common stock, net	5,202	18,591
Dividends paid on common stock	(130,223)	(128,942)
Dividends paid on preferred stock	(10,305)	(16,659)
Noncontrolling interest contributions	8,400	12,834
Noncontrolling interest distributions	(7,356)	(3,440)
Purchase of noncontrolling interest		(3,138)
Debt and equity issuance costs paid		(2,810)
Payments on credit facilities, net	(496,045)	(51,452)
Repurchase of debt	(1,538,665)	(852,477)
Proceeds from issuance of debt		1,022,667
Payments on debt	(92,873)	(75,392)
Net cash used in financing activities	(2,261,865)	(80,218)
Effect of foreign currency exchange rate changes on cash	2,692	(114)
Net increase in cash and cash equivalents	684,549	167,664
Cash and cash equivalents, beginning of period	100,810	176,072
Cash and cash equivalents, end of period	785,359	343,736
Prologis, L.P. [Member]
Operating activities:
Consolidated net earnings	296,932	213,097
Adjustments to reconcile net earnings to net cash provided by operating activities:
Straight-lined rents	(16,661)	(18,644)
Stock-based compensation awards, net	9,755	8,123
Depreciation and amortization	177,431	191,825
Earnings from unconsolidated entities, net	(24,768)	(13,995)
Distributions and changes in operating receivables from unconsolidated entities	24,937	1,302
Amortization of debt and lease intangibles	2,492	7,682
Non-cash merger, acquisition and other integration expenses		2,575
Impairment of real estate properties and other assets		19,320
Net gains on dispositions in discontinued operations	(5,834)	(11,249)
Gains on acquisitions and dispositions of investments in real estate, net	(338,845)	(267,771)
Losses (gains) on early extinguishment of debt, net	17,351	(5,419)
Unrealized foreign currency and derivative losses (gains), net	(1,955)	24,243
Deferred income tax expense (benefit)	(3,640)	1,051
Decrease (increase) in restricted cash, accounts receivable and other assets	32,936	(45,433)
Decrease in accounts payable and accrued expenses and other liabilities	(40,991)	(35,272)
Net cash provided by operating activities	129,140	71,435
Investing activities:
Real estate development activity	(161,673)	(171,726)
Real estate acquisitions	(55,907)	(10,375)
Tenant improvements and lease commissions on previously leased space	(29,950)	(30,326)
Non-development capital expenditures	(13,012)	(12,027)
Investments in and advances to unconsolidated entities, net	(258,414)	(31,724)
Return of investment from unconsolidated entities	82,847	34,571
Proceeds from dispositions and contributions of real estate properties	3,250,691	715,496
Net cash provided by investing activities	2,814,582	176,561
Financing activities:
Proceeds from issuance of common stock, net	5,202	18,591
Distributions paid on common partnership units	(130,753)	(130,347)
Distributions paid on preferred units	(10,305)	(16,659)
Noncontrolling interest contributions	8,400	12,834
Noncontrolling interest distributions	(6,826)	(2,870)
Purchase of noncontrolling interest		(2,303)
Debt and equity issuance costs paid		(2,810)
Payments on credit facilities, net	(496,045)	(51,452)
Repurchase of debt	(1,538,665)	(852,477)
Proceeds from issuance of debt		1,022,667
Payments on debt	(92,873)	(75,392)
Net cash used in financing activities	(2,261,865)	(80,218)
Effect of foreign currency exchange rate changes on cash	2,692	(114)
Net increase in cash and cash equivalents	684,549	167,664
Cash and cash equivalents, beginning of period	100,810	176,072
Cash and cash equivalents, end of period	785,359	343,736
NAIF II [Member]
Investing activities:
Acquisition of NAIF II and other unconsolidated entities, net of cash received		(317,328)
NAIF II [Member] | Prologis, L.P. [Member]
Investing activities:
Acquisition of NAIF II and other unconsolidated entities, net of cash received		$ (317,328)