Note 6. Other Assets

The following table presents the components of other assets as of December 31:


(In millions)	2011		2010
Collateral deposits	$	6,688	$	3,251
Unrealized gains on derivative financial instruments		6,366		5,255
Investments in joint ventures and other unconsolidated entities		1,060		927
Income taxes receivable		989		530
Accounts receivable		431		290
Deferred tax assets, net of valuation allowance⁽¹⁾		395		1,786
Prepaid expenses		308		382
Receivable for securities sold		—		122
Other⁽²⁾		902		1,298

Total	$	17,139	$	13,841

⁽¹⁾	Deferred tax assets as of December 31, 2011 are net of deferred tax liabilities within the same tax jurisdiction.

⁽²⁾	Amount for 2011 included other real estate owned of approximately $75 million.