v2.4.1.9

Debt - Activity Related to Repurchase of Debt and Net Loss on Early Extinguishment of Debt (Detail) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Debt [Line Items] |  |  |
Loss on early extinguishment of debt | $ 165,300,000 us-gaap_GainsLossesOnExtinguishmentOfDebt | $ 277,014,000 us-gaap_GainsLossesOnExtinguishmentOfDebt | $ 14,114,000 us-gaap_GainsLossesOnExtinguishmentOfDebt
Senior Notes [Member] |  |  |
Debt [Line Items] |  |  |
Repurchase of debt | 1,290,000,000 us-gaap_DebtInstrumentRepurchaseAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 2,141,000,000 us-gaap_DebtInstrumentRepurchaseAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Secured Mortagage Debt [Member] |  |  |
Debt [Line Items] |  |  |
Repurchase of debt | $ 528,000,000 us-gaap_DebtInstrumentRepurchaseAmount / us-gaap_DebtInstrumentAxis = pld_SecuredMortagageDebtMember | $ 1,571,000,000 us-gaap_DebtInstrumentRepurchaseAmount / us-gaap_DebtInstrumentAxis = pld_SecuredMortagageDebtMember |

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- Details
Name: | pld_DebtLineItems
Namespace Prefix: | pld_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair value amount of debt instrument that was repurchased. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentRepurchaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_DebtInstrumentAxis=pld_SecuredMortagageDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |