Intangibles

9 Months Ended

Sep. 30, 2011

Intangibles

Intangibles

(9)Intangibles

At September 30, 2011 and December 31, 2010, intangible lease assets, including lease-up intangibles, above market tenant lease intangibles, below market ground lease intangibles and intangible assets related to non-compete agreements, were $575 million and $511 million, respectively. At September 30, 2011 and December 31, 2010, the accumulated amortization of intangible assets was $185 million and $195 million, respectively.

At September 30, 2011 and December 31, 2010, below market lease and above market ground lease intangible liabilities were $220 million and $233 million, respectively. At September 30, 2011 and December 31, 2010, the accumulated amortization of intangible liabilities was $87 million and $85 million, respectively.