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Investments in and Advances to Joint Ventures - Condensed Combined Statements of Operations of Unconsolidated Joint Venture Investments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Schedule Of Equity Method Investments [Line Items]
Investment basis Value For which No Income Loss Recognized	$ 0
Obligation or Intent to fund additional capital	$ 0

X

- Definition

Investment Basis Value

+ References

No definition available.

+ Details

Name:	ddr_InvestmentBasisValue
Namespace Prefix:	ddr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Obligation To Fund Additional Capital

+ References

No definition available.

+ Details

Name:	ddr_ObligationToFundAdditionalCapital
Namespace Prefix:	ddr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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