UNION PACIFIC CORP

000 - Document - Document And Entity Information

001 - Statement - Consolidated Statements of Income

002 - Statement - Consolidated Statements of Comprehensive Income

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

004 - Statement - Consolidated Statements of Financial Position

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

006 - Statement - Consolidated Statements of Cash Flows

007 - Statement - Consolidated Statements of Changes in Common Shareholders' Equity

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

009 - Disclosure - Cybersecurity Disclosure Information

010 - Disclosure - Note 1 - Nature of Operations

011 - Disclosure - Note 2 - Significant Accounting Policies

012 - Disclosure - Note 3 - Accounting Pronouncements

013 - Disclosure - Note 4 - Stock Options and Other Stock Plans

014 - Disclosure - Note 5 - Retirement Plans

015 - Disclosure - Note 6 - Other Income

016 - Disclosure - Note 7 - Income Taxes

017 - Disclosure - Note 8 - Earnings Per Share

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

019 - Disclosure - Note 10 - Accounts Receivable

020 - Disclosure - Note 11 - Properties

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

022 - Disclosure - Note 13 - Financial Instruments

023 - Disclosure - Note 14 - Debt

024 - Disclosure - Note 15 - Variable Interest Entities

025 - Disclosure - Note 16 - Leases

026 - Disclosure - Note 17 - Commitments and Contingencies

027 - Disclosure - Note 18 - Share Repurchase Programs

028 - Disclosure - Note 19 - Related Parties

995445 - Disclosure - Insider Trading Arrangements

995475 - Disclosure - Significant Accounting Policies (Policies)

995476 - Disclosure - Note 1 - Nature of Operations (Tables)

995477 - Disclosure - Note 2 - Significant Accounting Policies (Tables)

995478 - Disclosure - Note 4 - Stock Options and Other Stock Plans (Tables)

995479 - Disclosure - Note 5 - Retirement Plans (Tables)

995480 - Disclosure - Note 6 - Other Income (Tables)

995481 - Disclosure - Note 7 - Income Taxes (Tables)

995482 - Disclosure - Note 8 - Earnings Per Share (Tables)

995483 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss (Tables)

995484 - Disclosure - Note 11 - Properties (Tables)

995485 - Disclosure - Note 12 - Accounts Payable and Other Current Liabilities (Tables)

995486 - Disclosure - Note 14 - Debt (Tables)

995487 - Disclosure - Note 16 - Leases (Tables)

995488 - Disclosure - Note 17 - Commitments and Contingencies (Tables)

995489 - Disclosure - Note 18 - Share Repurchase Programs (Tables)

995490 - Disclosure - Cybersecurity Disclosure Information (Details Textual)

995491 - Disclosure - Note 1 - Nature of Operations (Details Textual)

995492 - Disclosure - Note 1 - Nature of Operations - Summary of Freight and Other Revenues (Details)

995493 - Disclosure - Note 2 - Significant Accounting Policies (Details Textual)

995494 - Disclosure - Note 2 - Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details)

995495 - Disclosure - Note 4 - Stock Options and Other Stock Plans (Details Textual)

995496 - Disclosure - Note 4 - Stock Options and Other Stock Plans - Stock-based Compensation (Details)

995497 - Disclosure - Note 4 - Stock Options and Other Stock Plans - Stock Option Assumption (Details)

995498 - Disclosure - Note 4 - Stock Options and Other Stock Plans - Summary of Stock Option Activity (Details)

995499 - Disclosure - Note 4 - Stock Options and Other Stock Plans - Additional Information Regarding Stock Option Exercises (Details)

995500 - Disclosure - Note 4 - Stock Options and Other Stock Plans - Changes in Retention Awards (Details)

995501 - Disclosure - Note 4 - Stock Options and Other Stock Plans - Changes in Performance Retention Awards (Details)

995502 - Disclosure - Note 5 - Retirement Plans (Details Textual)

995503 - Disclosure - Note 5 - Pension and Other Postretirement Benefits - Changes in PBO and Plan Assets (Details)

995504 - Disclosure - Note 5 - Retirement Plans - Amounts Recognized in the Statement of Financial Position (Details)

995505 - Disclosure - Note 5 - Retirement Plans - Pre-tax Changes Recognized in Other Comprehensive Income (Loss) (Details)

995506 - Disclosure - Note 5 - Retirement Plans - Accumulated Benefit Obligation (Details)

995507 - Disclosure - Note 5 - Retirement Plans - Weighted Average Actuarial Assumptions (Details)

995508 - Disclosure - Note 5 - Retirement Plans - Components of Net Periodic Pension and OPEB Cost (Details)

995509 - Disclosure - Note 5 - Retirement Plans - Cash Contributions (Details)

995510 - Disclosure - Note 5 - Retirement Plans - Benefit Payments (Details)

995511 - Disclosure - Note 5 - Retirement Plans - Pension Plan Asset Allocation (Details)

995512 - Disclosure - Note 5 - Retirement Plans - Plan Assets Measured At Fair Value (Details)

995513 - Disclosure - Note 6 - Other Income (Details Textual)

995514 - Disclosure - Note 6 - Other Income - Schedule of Other Income (Details)

995515 - Disclosure - Note 7 - Income Taxes (Details Textual)

995516 - Disclosure - Note 7 - Income Taxes - Schedule of Income Tax Expense Components (Details)

995517 - Disclosure - Note 7 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)

995518 - Disclosure - Note 7 - Income Taxes - Schedule of Deferred Income Tax Assets (Liabilities) (Details)

995519 - Disclosure - Note 7 - Income Taxes - Schedule of Unrecognized Tax Benefits Assets (Liabilities) (Details)

995520 - Disclosure - Note 8 - Earnings Per Share (Details Textual)

995521 - Disclosure - Note 8 - Earnings Per Share - Schedule of Reconciliation (Details)

995522 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss - Schedule of Reclassification (Details)

995523 - Disclosure - Note 9 - Accumulated Other Comprehensive Income/Loss - Schedule of Reclassification (Details) (Parentheticals)

995524 - Disclosure - Note 10 - Accounts Receivable (Details Textual)

995525 - Disclosure - Note 11 - Properties (Details Textual)

995526 - Disclosure - Note 11 - Properties - Schedule of Property and Equipment Major Categories (Details)

995527 - Disclosure - Note 12 - Accounts Payable and Other Current Liabilities - Schedule of Accounts Payable and Other Current Liabilities (Details)

995528 - Disclosure - Note 13 - Financial Instruments (Details Textual)

995529 - Disclosure - Note 14 - Debt (Details Textual)

995530 - Disclosure - Note 14 - Debt - Schedule of Debt (Details)

995531 - Disclosure - Note 14 - Debt - Schedule of Debt (Details) (Parentheticals)

995532 - Disclosure - Note 14 - Debt - Schedule of Debt Maturities (Details)

995533 - Disclosure - Note 14 - Debt - Schedule of Unsecured Debt (Details)

995534 - Disclosure - Note 14 - Debt - Schedule of Unsecured Debt (Details) (Parentheticals)

995535 - Disclosure - Note 15 - Variable Interest Entities (Details Textual)

995536 - Disclosure - Note 16 - Leases (Details Textual)

995537 - Disclosure - Note 16 - Leases - Schedule of Lessee's Assets and Liabilities (Details)

995538 - Disclosure - Note 16 - Leases - Schedule of Lease Costs (Details)

995539 - Disclosure - Note 16 - Leases - Schedule of Lease Maturities (Details)

995540 - Disclosure - Note 16 - Leases - Schedule of Leases Term and Discount Rate (Details)

995541 - Disclosure - Note 16 - Leases - Schedule of Other Lease Information (Details)

995542 - Disclosure - Note 17 - Commitments and Contingencies (Details Textual)

995543 - Disclosure - Note 17 - Commitments and Contingencies - Personal Injury Liability Activity (Details)

995544 - Disclosure - Note 17 - Commitments and Contingencies - Environmental Liability Activity (Details)

995545 - Disclosure - Note 18 - Share Repurchase Programs (Details Textual)

995546 - Disclosure - Note 18 - Share Repurchase Programs - Schedule of Share Repurchase Programs (Details)

995547 - Disclosure - Note 19 - Related Parties (Details Textual)