v2.4.1.9

Debt - Debt Summary (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	3.60%us-gaap_DebtInstrumentInterestRateDuringPeriod	4.20%us-gaap_DebtInstrumentInterestRateDuringPeriod
Amount Outstanding	$ 9,380,199us-gaap_LongTermDebt	$ 9,011,216us-gaap_LongTermDebt
Senior Notes [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	3.60%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_NotesPayableOtherPayablesMember	4.50%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_NotesPayableOtherPayablesMember
Amount Outstanding	6,076,920us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_NotesPayableOtherPayablesMember	5,357,933us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_NotesPayableOtherPayablesMember
Credit Facilities [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate		1.20%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember
Amount Outstanding		725,483us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember
Exchangeable Senior Notes [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	3.30%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_ConvertibleDebtMember	3.30%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_ConvertibleDebtMember
Amount Outstanding	456,766us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_ConvertibleDebtMember	438,481us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_ConvertibleDebtMember
Secured Mortgage Debt [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	6.10%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_SecuredDebtMember	5.60%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = us-gaap_SecuredDebtMember
Amount Outstanding	1,050,591us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_SecuredDebtMember	1,696,597us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_SecuredDebtMember
Secured Mortgage Debt of Consolidated Entities [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	2.50%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = pld_SecuredDebtConsolidatedInvesteesMember	4.70%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = pld_SecuredDebtConsolidatedInvesteesMember
Amount Outstanding	1,207,106us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_SecuredDebtConsolidatedInvesteesMember	239,992us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_SecuredDebtConsolidatedInvesteesMember
Term Loan [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	1.30%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = pld_TermLoanMember	1.70%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = pld_TermLoanMember
Amount Outstanding	572,730us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_TermLoanMember	535,908us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_TermLoanMember
Term Loans and Other Debt [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Weighted Average Interest Rate	6.20%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = pld_OtherDebtMember	6.20%us-gaap_DebtInstrumentInterestRateDuringPeriod / us-gaap_DebtInstrumentAxis = pld_OtherDebtMember
Amount Outstanding	$ 16,086us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_OtherDebtMember	$ 16,822us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_OtherDebtMember

X

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
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- Details

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- Details

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Namespace Prefix:
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Balance Type:
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X

- Details

Name:	us-gaap_DebtInstrumentAxis=pld_SecuredDebtConsolidatedInvesteesMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix:
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Balance Type:
Period Type:

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- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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- Details

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