v2.4.1.9

Business Combinations - Additional Information (Detail) (USD $) | 12 Months Ended | 0 Months Ended |  |  |
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 20, 2014 | Oct. 02, 2013 | Jan. 31, 2014 | Aug. 06, 2013 Property
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Equity method investment | $ 4,666,000,000 us-gaap_EquityMethodInvestments | [1] | $ 4,250,000,000 us-gaap_EquityMethodInvestments | [1] | $ 2,014,000,000 us-gaap_EquityMethodInvestments | [1] |  |  |  |
Gains on dispositions of investments in real estate and revaluation of equity investments upon acquisition of a controlling interest, net | 725,790,000 pld_NetGainLossOnDispositionsNetOfInvestmentsInRealEstateAndRevaluationOfEquityInvestmentsUponAcquisitionOfControllingInterest |  | 715,758,000 pld_NetGainLossOnDispositionsNetOfInvestmentsInRealEstateAndRevaluationOfEquityInvestmentsUponAcquisitionOfControllingInterest |  | 348,615,000 pld_NetGainLossOnDispositionsNetOfInvestmentsInRealEstateAndRevaluationOfEquityInvestmentsUponAcquisitionOfControllingInterest |  |  |  |  |
Prologis SGP Mexico [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership interest in the venture, percentage |  |  |  |  |  |  |  | 78.40%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = pld_PrologisSgpMexicoMember |  |
Business acquisition purchase price allocation real estate properties |  |  |  |  |  |  |  | 409,500,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_BusinessAcquisitionAxis = pld_PrologisSgpMexicoMember |  |
Business acquisition purchase price allocation other assets |  |  |  |  |  |  |  | 4,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther / us-gaap_BusinessAcquisitionAxis = pld_PrologisSgpMexicoMember |  |
Business acquisition purchase price allocation other liabilities |  |  |  |  |  |  |  | 158,400,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = pld_PrologisSgpMexicoMember |  |
Prologis North American Industrial Fund [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Equity method investment | 679,000,000 us-gaap_EquityMethodInvestments / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember |  |  |  |  |  |  |  |  |
Total purchase price | 1,082,520,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember |  |  |  |  |  | 46,800,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember |  |  |
Gains on dispositions of investments in real estate and revaluation of equity investments upon acquisition of a controlling interest, net | 201,300,000 pld_NetGainLossOnDispositionsNetOfInvestmentsInRealEstateAndRevaluationOfEquityInvestmentsUponAcquisitionOfControllingInterest / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember |  |  |  |  |  |  |  |  |
Rental income included in pro forma result | 49,200,000 us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember |  |  |  |  |  |  |  |  |
Rental expenses included in pro forma result | 13,300,000 pld_RentalExpensesIncludedInProFormaResults / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember |  |  |  |  |  |  |  |  |
Prologis North American Industrial Fund [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Equity method investment, percentage | 23.10%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |  |
Prologis North American Industrial Fund [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Equity method investment, percentage | 66.10%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |  |
Unconsolidated Co-investment Ventures [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Gains on dispositions of investments in real estate and revaluation of equity investments upon acquisition of a controlling interest, net |  |  | 34,800,000 pld_NetGainLossOnDispositionsNetOfInvestmentsInRealEstateAndRevaluationOfEquityInvestmentsUponAcquisitionOfControllingInterest / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedJointVenturesMember |  |  |  |  |  |  |
Number of unconsolidated Co-investment Ventures |  |  | 3 pld_NumberOfUnconsolidatedJointVentures / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedJointVenturesMember |  |  |  |  |  |  |
Prologis North American Industrial Fund III [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership interest in the venture, percentage |  |  |  |  |  |  |  |  |  | 80.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundThreeMember
Business acquisition purchase price allocation real estate properties |  |  |  |  |  |  |  |  |  | 519,200,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundThreeMember
Business acquisition purchase price allocation other assets |  |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundThreeMember
Number of properties sold |  |  |  |  |  |  |  |  |  | 73 pld_NumberOfRealEstatePropertiesSold / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundThreeMember
Ownership percentage in joint venture |  |  |  |  |  |  |  |  | 55.00%pld_OwnershipPercentageInJointVenture / us-gaap_BusinessAcquisitionAxis = pld_PrologisNorthAmericanIndustrialFundThreeMember |
Our Share of Derivatives from Unconsolidated Co-Investment Ventures [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |
Gains on dispositions of investments in real estate and revaluation of equity investments upon acquisition of a controlling interest, net |  |  |  |  | 286,300,000 pld_NetGainLossOnDispositionsNetOfInvestmentsInRealEstateAndRevaluationOfEquityInvestmentsUponAcquisitionOfControllingInterest / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
Rental income included in pro forma result |  |  |  |  | 170,600,000 us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
Rental expenses included in pro forma result |  |  |  |  | 42,500,000 pld_RentalExpensesIncludedInProFormaResults / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
Number of unconsolidated Co-investment Ventures |  |  |  |  | 3 pld_NumberOfUnconsolidatedJointVentures / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
Business acquisition purchase price allocation real estate properties |  |  |  |  | 2,300,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
Business acquisition purchase price allocation other assets |  |  |  |  | 50,300,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
Business acquisition purchase price allocation other liabilities |  |  |  |  | $ 1,000,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / us-gaap_BusinessAcquisitionAxis = pld_UnconsolidatedCoInvestmentVenturesMember |  |  |  |  |
[1] | The difference between our ownership interest of the venture's equity and our investment balance results principally from three types of transactions: (i) deferring a portion of the gains we recognize from a contribution of a property to the venture ($322.9 million, $139.6 million and $147.9 million at December 31, 2014, 2013 and 2012, respectively); (ii) recording additional costs associated with our investment in the venture; and (iii) advances to the venture.

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- Definition Net Gain Loss On Dispositions Net Of Investments In Real Estate And Revaluation Of Equity Investments Upon Acquisition Of Controlling Interest + References No definition available. + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition Amount of real estate acquired, at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 + Details
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