Note 10 - Accounts Receivable	12 Months Ended
Dec. 31, 2022
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	10. Accounts Receivable Accounts receivable includes freight and other receivables reduced by an allowance for doubtful accounts. At both December 31, 2022 and 2021, our accounts receivable were reduced by $10 million. 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, 2022 and 2021, receivables classified as other assets were reduced by allowances of $58 million and $51 million, respectively. Receivables Securitization Facility – On July 29, 2022, the Railroad completed the renewal of the receivables securitization facility (the Receivables Facility). The new $800 million, 3-year facility replaces the prior $800 million facility and matures in July 2025. Under the Receivables Facility, the Railroad sells most of its eligible third-party receivables to Union Pacific Receivables, Inc. (UPRI), a consolidated, 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 recorded under the Receivables Facility was $100 million and $300 million at December 31, 2022 and 2021, respectively. The Receivables Facility was supported by $1.6 billion and $1.3 billion of accounts receivable as collateral at December 31, 2022 and 2021, respectively, which, as a retained interest, is included in accounts receivable, net in our Consolidated Statements of Financial Position. The outstanding amount the Railroad maintains under the Receivables Facility may fluctuate based on current cash needs. The maximum allowed under the Receivables Facility is $800 million with availability directly impacted by eligible receivables, 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 Receivables Facility would not materially change. The costs of the Receivables Facility include interest, which will vary based on prevailing benchmark and commercial paper rates, program fees paid to participating banks, commercial paper issuance costs, and fees of participating banks for unused commitment availability. The costs of the Receivables Facility are included in interest expense and were $10 million, $4 million, and $7 million for 2022, 2021, and 2020, respectively.

Note 10 - Accounts Receivable

12 Months Ended

Dec. 31, 2022

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

10. Accounts Receivable

Accounts receivable includes freight and other receivables reduced by an allowance for doubtful accounts. At both December 31, 2022 and 2021, our accounts receivable were reduced by $10 million. 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, 2022 and 2021, receivables classified as other assets were reduced by allowances of $58 million and $51 million, respectively.

Receivables Securitization Facility – On July 29, 2022, the Railroad completed the renewal of the receivables securitization facility (the Receivables Facility). The new $800 million, 3-year facility replaces the prior $800 million facility and matures in July 2025. Under the Receivables Facility, the Railroad sells most of its eligible third-party receivables to Union Pacific Receivables, Inc. (UPRI), a consolidated, 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 recorded under the Receivables Facility was $100 million and $300 million at December 31, 2022 and 2021, respectively. The Receivables Facility was supported by $1.6 billion and $1.3 billion of accounts receivable as collateral at December 31, 2022 and 2021, respectively, which, as a retained interest, is included in accounts receivable, net in our Consolidated Statements of Financial Position.

The outstanding amount the Railroad maintains under the Receivables Facility may fluctuate based on current cash needs. The maximum allowed under the Receivables Facility is $800 million with availability directly impacted by eligible receivables, 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 Receivables Facility would not materially change.

The costs of the Receivables Facility include interest, which will vary based on prevailing benchmark and commercial paper rates, program fees paid to participating banks, commercial paper issuance costs, and fees of participating banks for unused commitment availability. The costs of the Receivables Facility are included in interest expense and were $10 million, $4 million, and $7 million for 2022, 2021, and 2020, respectively.