v2.4.1.9

Debt - Debt Summary (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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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 | $ 9,380,199 us-gaap_LongTermDebt | $ 9,011,216 us-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 | 6,076,920 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_NotesPayableOtherPayablesMember | 5,357,933 us-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 |  | 725,483 us-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 | 456,766 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_ConvertibleDebtMember | 438,481 us-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 | 1,050,591 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = us-gaap_SecuredDebtMember | 1,696,597 us-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 | 1,207,106 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_SecuredDebtConsolidatedInvesteesMember | 239,992 us-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 | 572,730 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_TermLoanMember | 535,908 us-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 | $ 16,086 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_OtherDebtMember | $ 16,822 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pld_OtherDebtMember

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- 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

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- 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 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Period Type: | duration

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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