Consolidated Statement of Changes in Equity Consolidated Statement of Changes in Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common Stock, Dividends, Per Share, Cash Paid	$ 0.88	$ 0.815	$ 0.77
Duke Realty Limited Partnership [Member]
Distribution Made to Limited Partner, Distributions Paid, Per Unit	$ 0.88	$ 0.815	0.77
Special Dividend [Member]
Common Stock, Dividends, Per Share, Cash Paid			0.85
Special Dividend [Member] | Duke Realty Limited Partnership [Member]
Distribution Made to Limited Partner, Distributions Paid, Per Unit			$ 0.85