Note 5: Trading Assets

As of September 29, 2012 and December 31, 2011, trading assets were comprised of marketable debt instruments. Net gains related to trading assets still held at the reporting date were $50 million in the third quarter of 2012 and $35 million in the first nine months of 2012 (net losses of $89 million in the third quarter of 2011 and $37 million in the first nine months of 2011). Net losses on the related derivatives were $39 million in the third quarter of 2012 and $11 million in the first nine months of 2012 (net gains of $81 million in the third quarter of 2011 and $42 million in the first nine months of 2011).