Accounts Receivable	12 Months Ended
Dec. 31, 2013
Accounts Receivable [Abstract]
Accounts Receivable [Text Block]	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 December 31, 2013, and 2012, our accounts receivable were reduced by $1 million and $4 million, respectively. Receivables not expected to be collected in one year and the associated allowances are classified as other assets in our Consolidated Statements of Financial Position. At December 31, 2013, and 2012, receivables classified as other assets were reduced by allowances of $22 million and $33 million, respectively. Receivables Securitization Facility – The Railroad maintains a $600 million, 364-day receivables securitization facility under which it sells most of its eligible third-party receivables to Union Pacific Receivables, Inc. (UPRI), a wholly-owned, bankruptcy-remote subsidiary that may subsequently transfer, without recourse an undivided interest in accounts receivable to investors. 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. The amount outstanding under the facility was $0 and $100 million at December 31, 2013, and December 31, 2012, respectively. The facility was supported by $1.1 billion of accounts receivable as collateral at both December 31, 2013, and December 31, 2012, which, as a retained interest, is included in accounts receivable, net in our Condensed Consolidated Statements of Financial Position. The outstanding amount the Railroad is allowed to maintain under the facility, with a maximum of $600 million, may fluctuate based on the availability of eligible receivables and is directly affected by business volumes and credit risks, including receivables payment quality measures such as default and dilution ratios. If default or dilution ratios increase one percent, the allowable outstanding amount under the facility would not materially change. 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 $5 million, $3 million and $4 million for 2013, 2012, and 2011, respectively. In July 2013, the $600 million receivables securitization facility was renewed for an additional 364-day period at comparable terms and conditions.

Accounts Receivable

12 Months Ended

Dec. 31, 2013

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 December 31, 2013, and 2012, our accounts receivable were reduced by $1 million and $4 million, respectively. Receivables not expected to be collected in one year and the associated allowances are classified as other assets in our Consolidated Statements of Financial Position. At December 31, 2013, and 2012, receivables classified as other assets were reduced by allowances of $22 million and $33 million, respectively.

Receivables Securitization Facility – The Railroad maintains a $600 million, 364-day receivables securitization facility under which it sells most of its eligible third-party receivables to Union Pacific Receivables, Inc. (UPRI), a wholly-owned, bankruptcy-remote subsidiary that may subsequently transfer, without recourse an undivided interest in accounts receivable to investors. 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.

The amount outstanding under the facility was $0 and $100 million at December 31, 2013, and December 31, 2012, respectively. The facility was supported by $1.1 billion of accounts receivable as collateral at both December 31, 2013, and December 31, 2012, which, as a retained interest, is included in accounts receivable, net in our Condensed Consolidated Statements of Financial Position.

The outstanding amount the Railroad is allowed to maintain under the facility, with a maximum of $600 million, may fluctuate based on the availability of eligible receivables and is directly affected by business volumes and credit risks, including receivables payment quality measures such as default and dilution ratios. If default or dilution ratios increase one percent, the allowable outstanding amount under the facility would not materially change.

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 $5 million, $3 million and $4 million for 2013, 2012, and 2011, respectively.

In July 2013, the $600 million receivables securitization facility was renewed for an additional 364-day period at comparable terms and conditions.

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

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