Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Weighted-average number of shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Forward-Starting Interest Rate Swap Forward-Starting Interest Rate Swap [Member] Forward-Starting Interest Rate Swap Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Acquisition-related (Note 18) Business Combination, Acquisition-Related Cost, Expense Adjustment to Compensation, Amount Adjustment to Compensation Amount 2025 Accelerated Share Repurchase 2025 Accelerated Share Repurchase [Member] 2025 Accelerated Share Repurchase Financial Instrument [Axis] Financial Instrument [Axis] Schedule of Other Income Schedule of Other Nonoperating Income, by Component [Table Text Block] Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Common shares, $2.50 par value, 1,400,000,000 authorized; 1,113,353,519 and 1,113,161,191 issued; 594,223,957 and 593,245,884 outstanding, respectively Common Stock, Value, Issued Schedule of Changes in Retention Awards Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Receivables securitization facility, issued Receivables Securitization Facility Issued Represents amount issued as part of Receivables Securitization Facility. Share-based payment award, award requisite service period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Retirement Plans Retirement Benefits [Text Block] Beginning balance Ending balance at September 30, Loss Contingency Accrual Restatement Determination Date Restatement Determination Date Investments Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Sites subject of actions taken by US government Sites Subject Of Actions Taken By US Government Sites subject of actions taken by the U.S. government. Derivative Instrument [Axis] Derivative Instrument [Axis] Rail and other track material Roadrail And Other Track Material [Member] Information on rail and other track material. Repayments amount Receivables Securitization Facility Repayments Represents repayments made under the Receivables Securitization Facility. Vested or expected to vest (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] Current liabilities: Liabilities, Current [Abstract] Average price paid (in dollars per share) Shares Acquired, Average Cost Per Share Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Loss Contingencies [Table] Loss Contingencies [Table] Other comprehensive income/(loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Consolidated Entities [Domain] Consolidated Entities [Domain] Related Parties Related Party Transactions Disclosure [Text Block] Equity Method Investee Equity Method Investee [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent PEO Total Compensation Amount PEO Total Compensation Amount Common shares, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Stock-based compensation, before tax: Share-Based Payment Arrangement, Noncash Expense [Abstract] Kansas KANSAS Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share Repurchase Program [Domain] Share Repurchase Program [Domain] Derivative notional amount Derivative, Notional Amount Weighted average number of shares - basic (in shares) Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Share-Based Payment Arrangement, Tranche One Share-Based Payment Arrangement, Tranche One [Member] Retirement Benefits [Abstract] Technology and other Technology Equipment [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current Entity Address, City or Town Entity Address, City or Town Cross default provision Cross Default Provision As Defined By Facility Cross-default provision, as defined by facility. Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Accounts Receivable Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Receivables [Abstract] Commercial paper outstanding Commercial Paper Accounts receivable, allowance for credit loss, noncurrent Accounts Receivable, Allowance for Credit Loss, Noncurrent Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Retention awards Retention Awards [Member] Represents information regarding retention awards. Subsequent Event Type [Axis] Subsequent Event Type [Axis] Treasury stock Treasury Stock, Value Capital investments accrued but not yet paid Capital Expenditures Incurred but Not yet Paid Land Land [Member] Schedule of Segment Reporting Information, by Segment Segment Reporting [Table Text Block] Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Total other comprehensive income/(loss) Other comprehensive income/(loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Repayments of lines of credit Repayments of Lines of Credit Properties Property, Plant, and Equipment [Text Block] Undivided investor held interest Accounts Receivable Supporting Undivided Investor Held Interest The value of the accounts receivable that supported the value of the undivided interest held by investors. Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Changes in current assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Forfeited or expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Security Exchange Name Security Exchange Name Fair value of total debt less of carrying value Fair Value Of Total Debt Less Of Carrying Value Fair Value Of Total Debt Less Of Carrying Value Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Business Combination, Separately Recognized Transaction [Axis] Business Combination, Separately Recognized Transaction [Axis] Entity shares issued (in shares) Business Combination, Consideration Transferred, Equity Interests Issued And Issuable, Entity Shares Issued Per Acquiree Share Business Combination, Consideration Transferred, Equity Interests Issued And Issuable, Entity Shares Issued Per Acquiree Share Other comprehensive income/(loss), deferred taxes Net year-to-date other comprehensive income/(loss), taxes Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Accumulated other comprehensive loss (Note 9) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Personal Injury Personal Injury Personal Injury [Member] The risk of loss arises with respect to personal injuries. Current operating lease liabilities Operating Lease, Liability, Current Cash contributions for pension plans Payment for Pension Benefits Interest payable Interest Payable, Current Schedule of Property and Equipment and Weighted Average Estimated Useful Life Property, Plant, and Equipment [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Administrative Administrative Expense Administrative Expense Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Remaining debt issuance Board Of Directors Remaining Debt Issuance Amount of debt issuance remaining under current authority by Board of Directors. Share and per share (Note 8): Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Capital investments Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Amounts reclassified from accumulated other comprehensive income/(loss) Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Income Tax Disclosure [Abstract] Award Date [Axis] Award Date [Axis] Performance stock unit awards Performance Stock Unit Awards [Member] Represents information regarding performance retention awards. Defined benefit plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Receivables facility Long-Term Debt, Gross Credit Facility [Domain] Credit Facility [Domain] Related Party Transactions [Abstract] Operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted average number of shares - diluted (in shares) Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] TTX Company TTX Company [Member] Represents information on TTX Company. Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Estimated useful life Property, Plant, and Equipment, Useful Life Line of Credit Facility [Table] Line of Credit Facility [Table] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Proceeds from lines of credit Proceeds from Lines of Credit Deferred and other income taxes Deferred Income Taxes and Tax Credits Properties, net (Note 11) Net book value Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Award Date [Domain] Award Date [Domain] Award vesting rights (percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] ESPP employee contribution annual limit ESPP Employee Contribution Annual Limit ESPP employee contribution annual limit. Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Proceeds from issuance of commercial paper Proceeds from Issuance of Commercial Paper Other operating activities, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Income tax benefit realized from option exercises Share-Based Payment Arrangement, Exercise of Option, Tax Benefit Employer contribution match (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date Award Timing Predetermined Award Timing Predetermined [Flag] Asset-Backed Securities, Securitized Loans and Receivables Asset-Backed Securities, Securitized Loans and Receivables [Member] Treasury shares Treasury Stock, Common [Member] Intrinsic value of stock options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Sites on superfund national priorities list Sites On Super fund National Priorities List Sites on the Superfund National Priorities List. Short-term investments (Note 13) Short-term investments Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Current Organization, Consolidation and Presentation of Financial Statements [Abstract] Dilutive effect of awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Equipment and other rents Equipment And Other Rents Rent paid for freight cars owned by other railroads or private companies, net of rents received, including lease expenses primarily for locomotives, railcars, containers and trailers, office and other rentals. Outstanding at beginning of period (in dollars per share) Outstanding at end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value All Executive Categories All Executive Categories [Member] Number of states in which entity operates Number of States in which Entity Operates Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Schedule of Net Periodic Pension Benefit/Cost Schedule of Net Benefit Costs [Table Text Block] Depreciation Depreciation Depreciation Vesting [Domain] Vesting [Domain] Scenario [Domain] Scenario [Domain] Outstanding at beginning of period (in dollars per share) Outstanding, weighted average exercise price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Reconciliation of cash, cash equivalents, and restricted cash to the Condensed Consolidated Statement of Financial Position: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Operating lease assets Operating Lease, Right-of-Use Asset Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Premium Premium [Member] Represents information regarding Premium revenues. Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Total road Road [Member] Information on total roads. Debt due within one year (Note 14) Long-Term Debt and Lease Obligation, Current Operations and Segmentation Segment Reporting [Text Block] Minimum Minimum [Member] Outstanding line of credit Long-Term Line of Credit Expiration Date Trading Arrangement Expiration Date Performance period Share Based Compensation Arrangement by Share Based Payment Award, Performance Period Represents the performance period of share-based payment awards. Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Business Combination [Line Items] Business Combination [Line Items] Loss contingency, estimate of possible loss Loss Contingency, Estimate of Possible Loss Dividends declared Dividends, Common Stock Net periodic pension (benefit)/cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Aggregate intrinsic value Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value Options exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Other Income and Expenses [Abstract] Common shares, authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Compensation-related accruals Accrued Employee Benefits, Current Exercise Price Award Exercise Price Investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Segment Reporting [Line Items] Segment Reporting [Line Items] Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report Number of ports Number Of Ports Number Of Ports Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Debt Debt Disclosure [Text Block] Scenario [Axis] Scenario [Axis] Industrial Industrial [Member] Represents information regarding Industrial revenues. Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity method investments Equity Method Investments Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Total operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Total common shareholders' equity Beginning balance Ending balance Equity, Attributable to Parent Income and other taxes Increase (Decrease) in Accrued Taxes Payable Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Stock issued (in shares) Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Insider Trading Policies and Procedures [Line Items] Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Share Repurchase Programs Treasury Stock [Text Block] Accounts Payable and Other Current Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accrual for Environmental Loss Contingencies [Roll Forward] Accrual for Environmental Loss Contingencies [Roll Forward] Accounts receivable, allowance for credit loss, current Accounts Receivable, Allowance for Credit Loss, Current Other financing activities, net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Business Combination, Separately Recognized Transaction [Domain] Business Combination, Separately Recognized Transaction [Domain] Stock repurchase program, number of shares authorized to be repurchased (in shares) Share Repurchase Program, Authorized, Number of Shares Business Combination [Domain] Business Combination [Domain] Sites identified Sites Identified Sites identified at which Railroad is or may be liable for remediation costs associated with alleged contamination or for violations of environmental requirements. Forfeited or expired (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Stock options excluded as their inclusion would be anti-dilutive (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of operating segments Number of Operating Segments Entity Central Index Key Entity Central Index Key All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Common shareholders' equity: Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Share Repurchase Program [Table] Share Repurchase Program [Table] Operating expenses: Operating Expenses [Abstract] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Treasury shares repurchased for employee payroll taxes Treasury Shares Repurchased For Employee Payroll Taxes Represents the amount of treasury shares repurchased for employee payroll taxes. Schedule of Annual Weighted Average Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] City Area Code City Area Code Cost Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization AOCI Total AOCI Attributable to Parent [Member] Expected return on plan assets, changes in fair value, period (in years) Defined Benefit Plan Expected Return On Plan Assets Changes In Fair Value Period The expected long-term rate of return on plan assets that is applied to a calculated value of plan assets that recognizes the changes in fair value over this period. All Individuals All Individuals [Member] UPRR UPRR [Member] Information on the related parties. Debt instrument, fair value disclosure Debt Instrument, Fair Value Disclosure Schedule of Personal Injury Liability Activity Schedule of Loss Contingencies by Contingency [Table Text Block] Dividends paid Payments of Dividends Name Forgone Recovery, Individual Name Loss Contingency Accrual [Roll Forward] Loss Contingency Accrual [Roll Forward] Recognized weighted-average period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Unearned (in dollars per share) Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Unearned, Weighted Average Grant Date Fair Value Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were unearned. Weighted-average grant-date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Reportable Segment Reportable Segment [Member] Reportable Segment Statement [Line Items] Statement [Line Items] Total assets Assets Entity [Domain] Entity [Domain] Beginning balance Ending balance Accrual for Environmental Loss Contingencies Unearned (in shares) Share Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Unearned The number of equity-based payment instruments, excluding stock (or unit) options, that were unearned during the reporting period. Accounting Standards Update and Change in Accounting Principle [Abstract] Debt coverage ratio Allowable Debt Per Debt To Net Worth Coverage Ratio As Defined Facility Total amount of debt (as defined in the facility) the debt-to-net-worth coverage ratio allowable under the revolving credit facility. Weighted-average grant-date fair value of options granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Defined benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Interest expense Interest expense Interest expense Interest Expense, Nonoperating Current portion, ending balance at September 30, Accrued Environmental Loss Contingencies, Current Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Purchased services and materials Purchased Services And Materials [Member] Purchased Services And Materials Other comprehensive income/(loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Operations and Segmentation Nature of Operations [Text Block] PEO PEO [Member] Aggregate grant-date fair value of stock options vested Aggregate Grant Date Fair Value Of Stock Options Vested Represents the aggregate grant-date fair value of stock options vested during the period. Total stock-based compensation, before tax Share-Based Payment Arrangement, Expense Other long-term liabilities Other Liabilities, Noncurrent Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Subsequent Event Type [Domain] Subsequent Event Type [Domain] Payables and Accruals [Abstract] Income and other taxes payable Taxes Payable, Current Retained earnings Retained Earnings [Member] Operating lease liabilities Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common shares, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Foreign currency translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Earnings per share - diluted (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Other current assets Business Combination, Separately Recognized Transaction, Acquisition-Related Cost, Debt and Equity Securities Issuance Cost, Not Expensed Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Cash paid during the period for: Cash Paid [Abstract] Cash Paid Norfolk Southern Norfolk Southern [Member] Norfolk Southern Adjustments to reconcile net income to cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Other subsidiary revenues Other Subsidiary Revenues [Member] Represents information regarding other subsidiary revenues. Commitments and Contingencies Commitments Contingencies and Guarantees [Text Block] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Share-Based Payment Arrangement [Abstract] Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Total operating revenues Total operating revenues Revenue from Contract with Customer, Excluding Assessed Tax Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Interest cost Defined Benefit Plan, Interest Cost Compensation and benefits Compensation And Benefits [Member] Compensation And Benefits Financial Instruments [Domain] Financial Instruments [Domain] Accounts receivable, from securitization, default or dilution ratio Sensitivity Analysis Of Fair Value Transferors Interests In Transferred Financial Assets Percent Of Change In Default Or Dilution Ratios With No Impact Information on the impact of changes in the default or dilution ratios on the Accounts Receivable, from Securitization, Facility. Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Share Repurchase Program [Line Items] Share Repurchase Program [Line Items] Underlying Securities Award Underlying Securities Amount Purchases of short-term investments Payments to Acquire Short-Term Investments Debt repaid Repayments of Debt and Lease Obligation Equipment rents payable Accrued Rent, Current State Income Tax Jurisdiction, Domestic State and Local [Member] Financial Instruments Financial Instruments Disclosure [Text Block] Other Other Nonoperating Income Expense, Other The amount of income (expense) from other nonoperating activities not otherwise specified. Construction in progress Construction in Progress [Member] Other investing activities, net Payment for (Proceeds from) Other Investing Activity Segment Reporting [Table] Segment Reporting [Table] Maximum employee subscription rate (as a percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate Related Party Transaction [Table] Related Party Transaction [Table] Weighted-average remaining contractual term (in yrs.) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Other current assets Other Assets, Current Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Total acquisition-related expense Business Combination, Separately Recognized Transaction, Acquisition-Related Cost, Expensed Current Fiscal Year End Date Current Fiscal Year End Date Authorized debt issuance Board Of Directors Authorized Debt Issuance Amount of debt issuance authorized by Board of Directors. Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Pending Acquisition Business Combination [Text Block] Other Other Acquisition-Related Costs [Member] Other Acquisition-Related Costs Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Diluted, by Common Class, Including Two-Class Method [Table] Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Conversion, stock option exercises, forfeitures, ESPP, and other Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Schedule of Changes in Performance Stock Unit Awards Schedule of Nonvested Performance-Based Units Activity [Table Text Block] Accessorial revenues Accessorial Revenues [Member] Represents information on accessorial revenues. Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Weighted-average exercise price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common shares, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares Ballast Road Ballast [Member] Information on ballast. Accumulated Other Comprehensive Income/Loss Comprehensive Income (Loss) Note [Text Block] Equity Components [Axis] Equity Components [Axis] Other Other Cost and Expense, Operating Accounts receivable, net Increase (Decrease) in Accounts Receivable Product and Service [Domain] Product and Service [Domain] Income taxes, net of refunds Income Tax Paid, after Refund Received Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Deferred income taxes Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Accounts payable and other current liabilities (Note 12) Total accounts payable and other current liabilities Accounts Payable and Accrued Liabilities, Current Entity Small Business Entity Small Business Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Remaining number of shares that may be repurchased under current authority (in shares) Share Repurchase Program, Remaining Authorized, Number of Shares Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Payments Accrual for Environmental Loss Contingencies, Payments Non-operating property environmental remediation and restoration Environmental Remediation And Restoration Environmental Remediation And Restoration Award expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Other assets Other Assets, Noncurrent Document Type Document Type Materials and supplies Materials, Supplies, and Other Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value 2022 Awards 2022 Awards [Member] 2022 Awards Options exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Other roadway Road, Other [Member] Information on other railroad assets. Outstanding value of receivables securitization facility Value Outstanding Undivided Interest Held By Investors Under Receivables Securitization Facility Value of the outstanding undivided interest held by investors under the receivables securitization facility. Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Debt issued (Note 14) Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Vested or expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Commitments and contingencies (Note 15) Commitments and Contingencies Other Other Miscellaneous Product and Service Revenues [Member] Represents information on other miscellaneous product and service revenues. Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Accounts payable and other current liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Changes in estimates for prior years Changes In Estimates For Prior Years Amount of expense (reversal of expense) which increases (decreases) the accrual for loss contingencies from revisions in estimates to existing obligations. Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Liabilities and common shareholders' equity Liabilities and Equity [Abstract] Options exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted-Average Remaining Contractual Term Receivables securitization facility, period Receivables Securitization Facility Duration Duration of the receivables securitization facility, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Average price paid, net of initial delivery of shares (in dollars per share) Shares Acquired, Average Cost Per Share, Net Of Initial Delivery Of Shares Shares Acquired, Average Cost Per Share, Net Of Initial Delivery Of Shares Materials and supplies Increase (Decrease) in Materials and Supplies Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Expected life (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Receivables facility Total Transfer Capacity Undivided Interests To Investors Under Receivables Securitization Facility Total capacity to transfer undivided interest to investors under receivables securitization facility. Share repurchase programs (Note 16) (in shares) Treasury stock, shares, acquired (in shares) Number of shares purchased (in shares) Treasury Stock, Shares, Acquired PEO Name PEO Name Geographical [Axis] Geographical [Axis] Net periodic pension benefit/(costs) Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component Operating Operating Expense Operating Expense Derivative instruments Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Other segment items Segment Reporting, Other Segment Item, Amount Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Legal Entity [Axis] Legal Entity [Axis] Schedule of Acquisition-Related Expense Associated with the Merger Agreement Business Combination, Separately Recognized Transaction [Table Text Block] Transcontinental railroad (in miles) Transcontinental Railroad, Number Of Miles Transcontinental Railroad, Number Of Miles Excess income tax benefits from equity compensation plans Share-Based Payment Arrangement, Expense, Tax Benefit Share repurchase programs (Note 16) Treasury stock, value, acquired Treasury Stock, Value, Acquired, Cost Method Work equipment and other Equipment, Work Equipment and Other [Member] Information on work and Other equipment. Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Cash, cash equivalents, and restricted cash at beginning of year Cash, cash equivalents, and restricted cash at end of period Total cash, cash equivalents, and restricted cash equivalents per above Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Schedule of Share Repurchase Programs Share Repurchase Program [Table Text Block] Tabular disclosure of information related to share repurchase programs. Other Other Accrued Liabilities, Current Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Freight revenues Total freight revenues Cargo and Freight [Member] Schedule of Reclassifications Out of Accumulated Other Comprehensive Income/Loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Restricted cash equivalents in other current assets Restricted Cash and Cash Equivalent, Current Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Cash consideration Payments to Acquire Businesses, Gross Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Compensation and benefits Labor and Related Expense Ties Road Ties [Member] Information on railroad ties. ESPP Employee Stock [Member] Investment, Name [Domain] Investment, Name [Domain] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Earnings per share - basic (in dollars per share) Earnings Per Share, Basic Share repurchase programs (Note 16) Payments for Repurchase of Common Stock Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Award Type [Axis] Award Type [Axis] Bulk Bulk [Member] Represents information regarding Bulk revenues. Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable, net (Note 10) Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Repayments of commercial paper Repayments of Commercial Paper Product and Service [Axis] Product and Service [Axis] Derivative instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common shares Common Stock [Member] Volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Outstanding debt as defined by facility Outstanding Debt As Defined By Facility Outstanding debt as defined by the credit facility. Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Derivative Contract [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and common shareholders' equity Liabilities and Equity Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Interest income Interest Income, Other Freight cars Equipment, Freight Cars [Member] Information on freight cars. Stock options Share-Based Payment Arrangement, Option [Member] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Tabular List, Table Tabular List [Table Text Block] Current year accruals Loss Contingency Accrual, Loss (Reversal of Loss) Vesting [Axis] Vesting [Axis] Restricted cash equivalents in other assets Restricted Cash and Cash Equivalent, Noncurrent Paid-in-surplus Additional Paid in Capital Schedule of Stock Based Compensation Expense Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Other income, net (Note 6) Other income, net Total Other Nonoperating Income (Expense) Schedule of Accounts Payable and Other Current Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Schedule of Environmental Liability Activity Schedule of Loss Contingencies by Contingency, Environmental [Table Text Block] Tabular disclosure of the environmental loss contingencies that were reported in the period or disclosed as of the balance sheet date. Name Awards Close in Time to MNPI Disclosures, Individual Name Schedule of Additional Information Regarding Stock Option Exercises Cash Proceeds Received and Tax Benefit from Share-Based Payment Awards [Table Text Block] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Adjustment to Compensation: Adjustment to Compensation [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Termination fee Business Combination, Specified Termination Fee Business Combination, Specified Termination Fee Reduction of our deferred tax expense Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Debt due after one year (Note 14) Long-Term Debt and Lease Obligation Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Vested or expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts payable, current Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Mexico MEXICO Other current assets Increase (Decrease) in Other Current Assets Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Paid-in-surplus Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Total equipment Equipment [Member] Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Accruals Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses Basis of Presentation Basis of Accounting [Text Block] Company Selected Measure Amount Company Selected Measure Amount Vested or expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 2023 Awards 2023 Awards [Member] 2023 Awards Conversion, stock option exercises, forfeitures, ESPP, and other (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Accounts and Financing Receivables [Table] Accounts and Financing Receivables [Table] Cash paid per acquiree share (in dollars per share) Business Combination, Price Per Share Current assets: Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Maturities of short-term investments Proceeds from Sale, Maturity and Collection of Short-Term Investments Income tax expense (Note 7) Income tax expense Income Tax Expense (Benefit) Payments Loss Contingency Accrual, Payments Other Income Other Income and Other Expense Disclosure [Text Block] Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Net change in cash, cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Other revenues Product and Service, Other [Member] Forecast Forecast [Member] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Purchased services and materials Purchased Services And Materials Materials and contracted services to maintain infrastructure and equipment and terminal services at intermodal and automotive facilities. Accrued casualty costs Current portion, ending balance at September 30, Loss Contingency, Accrual, Current Share Repurchase Program [Abstract] Amortization of actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Fuel Locomotive fuel Fuel Costs AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income Net income Net income Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Share-Based Payment Arrangement, Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Restatement Determination Date: Restatement Determination Date [Axis] Cash received from option exercises Proceeds from Stock Options Exercised Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Options exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Real estate income Profit (Loss) from Real Estate Operations Operating revenues: Revenues [Abstract] Number of international interchanges Number Of International Interchanges Number Of International Interchanges Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Locomotives Equipment, Locomotives [Member] Information on locomotives.