Debt instrument maturity month and year.

No definition available.

Name:	pld_DebtInstrumentMaturityMonthAndYear
Namespace Prefix:	pld_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument maturity year and month range ends.

+ References

No definition available.

+ Details

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Namespace Prefix:	pld_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument maturity year and month range start.

+ References

No definition available.

+ Details

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Namespace Prefix:	pld_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pld_FebruaryTwoThousandTwentyTwoSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_EUR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_USD
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pld_FebruaryTwoThousandAndThirtyFiveSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_GBP
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pld_JanuaryTwoThousandAndTwentySeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=pld_EuriborMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pld_MayTwoThousandTwentyOneSeniorNotesMember
Namespace Prefix:
Data Type:	na
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Debt - Summary of Issuances and Redemptions of Senior Notes (Detail) € in Thousands, £ in Thousands, $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 EUR (€)	Mar. 31, 2020 GBP (£)	Jan. 31, 2020 EUR (€)
February 2022 – 2035 Senior Notes [Member] \| EUR
Debt Instrument [Line Items]
Aggregate Principal		$ 1,485,405	€ 1,350,000
Maturity Dates		2022-02
Maturity Dates		2035-02
February 2022 – 2035 Senior Notes [Member] \| EUR \| Weighted Average [Member]
Debt Instrument [Line Items]
Stated Interest Rate		0.80%	0.80%	0.80%
April 2027 – 2050 Senior Notes [Member] \| USD
Debt Instrument [Line Items]
Aggregate Principal		$ 2,200,000
Maturity Dates		2027-04
Maturity Dates		2050-04
April 2027 – 2050 Senior Notes [Member] \| USD \| Weighted Average [Member]
Debt Instrument [Line Items]
Stated Interest Rate		2.60%	2.60%	2.60%
February 2035 Senior Notes [Member] \| GBP
Debt Instrument [Line Items]
Aggregate Principal		$ 322,490		£ 250,000
Maturity Dates		2035-02
February 2035 Senior Notes [Member] \| GBP \| Weighted Average [Member]
Debt Instrument [Line Items]
Stated Interest Rate		1.90%	1.90%	1.90%
January 2020 Senior Notes [Member] \| EUR
Debt Instrument [Line Items]
Aggregate Principal	$ 445,880				€ 400,000
Maturity Dates	2020-01
January 2020 Senior Notes [Member] \| EUR \| Euribor [Member]
Debt Instrument [Line Items]
Stated Interest Rate, applicable margin	0.30%
May 2021 Senior Notes [Member] \| EUR
Debt Instrument [Line Items]
Stated Interest Rate		1.40%	1.40%	1.40%
Aggregate Principal		$ 783,090	€ 700,000
Maturity Dates		2021-05