10. Accounts Receivable

Accounts receivable includes freight and other receivables reduced by an allowance for doubtful accounts. The allowance is based upon historical losses, credit worthiness of customers, and current economic conditions. At June 30, 2011 and December 31, 2010, our accounts receivable were reduced by $6 million and $5 million, respectively. Receivables not expected to be collected in one year and the associated allowances are classified as other assets in our Condensed Consolidated Statements of Financial Position. At June 30, 2011 and December 31, 2010, receivables classified as other assets were reduced by allowances of $49 million and $51 million, respectively.

Receivables Securitization Facility – Under the receivables securitization facility, the Railroad sells most of its accounts receivable to Union Pacific Receivables, Inc. (UPRI), a bankruptcy-remote subsidiary. UPRI may subsequently transfer, without recourse on a 364-day revolving basis, an undivided interest in eligible accounts receivable to investors. The total capacity to transfer undivided interests to investors under the facility was $600 million at June 30, 2011 and December 31, 2010. The value of the outstanding undivided interest held by investors under the facility was $100 million at June 30, 2011 and December 31, 2010, and is included in our Condensed Consolidated Statements of Financial Position as debt due after one year. The value of the undivided interest held by investors was supported by $1.1 billion and $960 million of accounts receivable at June 30, 2011, and December 31, 2010, respectively. At June 30, 2011, and December 31, 2010, the value of the interest retained by UPRI was $1.1 billion and $960 million, respectively. This retained interest is included in accounts receivable, net in our Condensed Consolidated Statements of Financial Position.

The value of the outstanding undivided interest held by investors could fluctuate based upon the availability of eligible receivables and is directly affected by changing business volumes and credit risks, including default and dilution. If default or dilution ratios increase one percent, the value of the outstanding undivided interest held by investors would not change as of June 30, 2011. Should our credit rating fall below investment grade, the value of the outstanding undivided interest held by investors would be reduced, and, in certain cases, the investors would have the right to discontinue the facility.

The Railroad collected approximately $4.6 billion and $4.0 billion during the three months ended June 30, 2011 and 2010, respectively, and $8.9 billion and $7.7 billion during the six months ended June 30, 2011 and 2010, respectively. UPRI used certain of these proceeds to purchase new receivables under the facility.

The costs of the receivables securitization facility include interest, which will vary based on prevailing commercial paper rates, program fees paid to banks, commercial paper issuing costs, and fees for unused commitment availability. The costs of the receivables securitization facility are included in interest expense and were $1 million for the three months ended June 30, 2011 and 2010, and $2 million and $3 million for the six months ended June 30, 2011, and 2010, respectively.

The investors have no recourse to the Railroad's other assets except for customary warranty and indemnity claims. Creditors of the Railroad do not have recourse to the assets of UPRI.

We are currently in process of renewing the receivables securitization facility for an additional 364-day period at comparable terms and conditions.