UNION PACIFIC CORP

000 - Document - Document And Entity Information

001 - Statement - Condensed Consolidated Statements of Income (Unaudited)

002 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited)

003 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals)

004 - Statement - Condensed Consolidated Statements of Financial Position (Unaudited)

005 - Statement - Condensed Consolidated Statements of Financial Position (Unaudited) (Parentheticals)

006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)

007 - Statement - Condensed Consolidated Statements of Changes in Common Shareholders' Equity (Unaudited)

008 - Statement - Condensed Consolidated Statements of Changes in Common Shareholders' Equity (Unaudited) (Parentheticals)

009 - Disclosure - Note 1 - Basis of Presentation

010 - Disclosure - Note 2 - Accounting Pronouncements

011 - Disclosure - Note 3 - Operations and Segmentation

012 - Disclosure - Note 4 - Stock-based Compensation

013 - Disclosure - Note 5 - Retirement Plans

014 - Disclosure - Note 6 - Other Income

015 - Disclosure - Note 7 - Income Taxes

016 - Disclosure - Note 8 - Earnings Per Share

017 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss

018 - Disclosure - Note 10 - Accounts Receivable

019 - Disclosure - Note 11 - Properties

020 - Disclosure - Note 12 - Accounts Payable and Other Current Liabilities

021 - Disclosure - Note 13 - Financial Instruments

022 - Disclosure - Note 14 - Debt

023 - Disclosure - Note 15 - Commitments and Contingencies

024 - Disclosure - Note 16 - Share Repurchase Programs

025 - Disclosure - Note 17 - Related Parties

995445 - Disclosure - Insider Trading Arrangements

995472 - Disclosure - Note 3 - Operations and Segmentation (Tables)

995473 - Disclosure - Note 4 - Stock-based Compensation (Tables)

995474 - Disclosure - Note 5 - Retirement Plans (Tables)

995475 - Disclosure - Note 6 - Other Income (Tables)

995476 - Disclosure - Note 8 - Earnings Per Share (Tables)

995477 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss (Tables)

995478 - Disclosure - Note 11 - Properties (Tables)

995479 - Disclosure - Note 12 - Accounts Payable and Other Current Liabilities (Tables)

995480 - Disclosure - Note 15 - Commitments and Contingencies (Tables)

995481 - Disclosure - Note 16 - Share Repurchase Programs (Tables)

995482 - Disclosure - Note 3 - Operations and Segmentation (Details Textual)

995483 - Disclosure - Note 3 - Operations and Segmentation - Summary of Freight and Other Revenues (Details)

995484 - Disclosure - Note 4 - Stock-based Compensation (Details Textual)

995485 - Disclosure - Note 4 - Stock-based Compensation - Stock-based Compensation (Details)

995486 - Disclosure - Note 4 - Stock-based Compensation- Stock Option Assumption (Details)

995487 - Disclosure - Note 4 - Stock-based Compensation - Summary of Stock Option Activity (Details)

995488 - Disclosure - Note 4 - Stock-based Compensation - Additional Information Regarding Stock Option Exercises (Details)

995489 - Disclosure - Note 4 - Stock-based Compensation - Changes in Retention Awards (Details)

995490 - Disclosure - Note 4 - Stock-based Compensation - Changes in Performance Retention Awards (Details)

995491 - Disclosure - Note 5 - Retirement Plans (Details Textual)

995492 - Disclosure - Note 5 - Retirement Plans - Components of Net Periodic Pension and OPEB Cost (Details)

995493 - Disclosure - Note 6 - Other Income (Details Textual)

995494 - Disclosure - Note 6 - Other Income - Schedule of Other Income (Details)

995495 - Disclosure - Note 7 - Income Taxes (Details Textual)

995496 - Disclosure - Note 8 - Earnings Per Share - Schedule of Reconciliation (Details)

995497 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss - Schedule of Reclassification (Details)

995498 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss - Schedule of Reclassification (Details) (Parentheticals)

995499 - Disclosure - Note 10 - Accounts Receivable (Details Textual)

995500 - Disclosure - Note 11 - Properties (Details Textual)

995501 - Disclosure - Note 11 - Properties - Schedule of Property and Equipment Major Categories (Details)

995502 - Disclosure - Note 12 - Accounts Payable and Other Current Liabilities - Schedule of Accounts Payable and Other Current Liabilities (Details)

995503 - Disclosure - Note 13 - Financial Instruments (Details Textual)

995504 - Disclosure - Note 14 - Debt (Details Textual)

995505 - Disclosure - Note 15 - Commitments and Contingencies (Details Textual)

995506 - Disclosure - Note 15 - Commitments and Contingencies - Personal Injury Liability Activity (Details)

995507 - Disclosure - Note 15 - Commitments and Contingencies - Environmental Liability Activity (Details)

995508 - Disclosure - Note 16 - Share Repurchase Programs (Details Textual)

995509 - Disclosure - Note 16 - Share Repurchase Programs - Schedule of Share Repurchase Programs (Details)

995510 - Disclosure - Note 17 - Related Parties (Details Textual)