Debt - Debt Summary (Parenthetical) (Detail) (USD $) In Billions, unless otherwise specified	Jun. 30, 2014
Euro [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Foreign principal borrowing included in total debt denominated in non-U.S. dollars	$ 2.8
Japanese Yen [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Foreign principal borrowing included in total debt denominated in non-U.S. dollars	$ 0.6

Principal borrowings denominated in foreign currency included debt.

No definition available.

Name:	pld_PrincipalBorrowingsDenominatedInForeignCurrencyIncludedDebt
Namespace Prefix:	pld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant