Other Assets

The following table presents the components of other assets as of the dates indicated:



(In millions)	March 31, 2012		December 31, 2011
Collateral deposits, net	$	6,238	$	6,688
Unrealized gains on derivative financial instruments, net	3,672		6,366
Investments in joint ventures and other unconsolidated entities	1,124		1,060
Accounts receivable	634		431
Deferred tax assets, net of valuation allowance	402		395
Prepaid expenses	332		308
Deposits with clearing organizations	235		222
Income taxes receivable	206		989
Non-cash collateral deposits	124		110
Other⁽¹⁾	759		570
Total	$	13,726	$	17,139


⁽¹⁾	Amounts for March 31, 2012 and December 31, 2011 included other real estate owned of approximately $76 million and $75 million, respectively.