3.22.0.1 html 194 448 1 false 53 0 false 9 false false R1.htm 0001001 - Document - Cover Page Sheet http://www.bnsf.com/role/CoverPage Cover Page Cover 1 false false R2.htm 0002002 - Document - Audit Information Sheet http://www.bnsf.com/role/AuditInformation Audit Information Notes 2 false false R3.htm 1001003 - Statement - Consolidated Statements of Income Sheet http://www.bnsf.com/role/ConsolidatedStatementsofIncome Consolidated Statements of Income Uncategorized 3 false false R4.htm 1002004 - Statement - Consolidated Statements of Comprehensive Income Sheet http://www.bnsf.com/role/ConsolidatedStatementsofComprehensiveIncome Consolidated Statements of Comprehensive Income Statements 4 false false R5.htm 1003005 - Statement - Consolidated Balance Sheets Sheet http://www.bnsf.com/role/ConsolidatedBalanceSheets Consolidated Balance Sheets Statements 5 false false R6.htm 1004006 - Statement - Consolidated Statements of Cash Flows Sheet http://www.bnsf.com/role/ConsolidatedStatementsofCashFlows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 1005007 - Statement - Consolidated Statements of Changes in Equity Sheet http://www.bnsf.com/role/ConsolidatedStatementsofChangesinEquity Consolidated Statements of Changes in Equity Statements 7 false false R8.htm 2101101 - Disclosure - The Company Sheet http://www.bnsf.com/role/TheCompany The Company Notes 8 false false R9.htm 2103102 - Disclosure - Significant Accounting Policies Sheet http://www.bnsf.com/role/SignificantAccountingPolicies Significant Accounting Policies Notes 9 false false R10.htm 2106103 - Disclosure - Accounting Pronouncements Sheet http://www.bnsf.com/role/AccountingPronouncements Accounting Pronouncements Notes 10 false false R11.htm 2107104 - Disclosure - Revenue from Contracts with Customers Sheet http://www.bnsf.com/role/RevenuefromContractswithCustomers Revenue from Contracts with Customers Notes 11 false false R12.htm 2110105 - Disclosure - Income Taxes Sheet http://www.bnsf.com/role/IncomeTaxes Income Taxes Notes 12 false false R13.htm 2117106 - Disclosure - Accounts Receivable, Net Sheet http://www.bnsf.com/role/AccountsReceivableNet Accounts Receivable, Net Notes 13 false false R14.htm 2119107 - Disclosure - Property and Equipment, Net Sheet http://www.bnsf.com/role/PropertyandEquipmentNet Property and Equipment, Net Notes 14 false false R15.htm 2122108 - Disclosure - Goodwill Sheet http://www.bnsf.com/role/Goodwill Goodwill Notes 15 false false R16.htm 2124109 - Disclosure - Leases Sheet http://www.bnsf.com/role/Leases Leases Notes 16 false false R17.htm 2131110 - Disclosure - Other Assets Sheet http://www.bnsf.com/role/OtherAssets Other Assets Notes 17 false false R18.htm 2134111 - Disclosure - Accounts Payable and Other Current Liabilities Sheet http://www.bnsf.com/role/AccountsPayableandOtherCurrentLiabilities Accounts Payable and Other Current Liabilities Notes 18 false false R19.htm 2137112 - Disclosure - Debt Sheet http://www.bnsf.com/role/Debt Debt Notes 19 false false R20.htm 2143113 - Disclosure - Commitments and Contingencies Sheet http://www.bnsf.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 20 false false R21.htm 2148114 - Disclosure - Employment Benefit Plans Sheet http://www.bnsf.com/role/EmploymentBenefitPlans Employment Benefit Plans Notes 21 false false R22.htm 2159115 - Disclosure - Related Party Transactions Sheet http://www.bnsf.com/role/RelatedPartyTransactions Related Party Transactions Notes 22 false false R23.htm 2162116 - Disclosure - Accumulated Other Comprehensive Income Sheet http://www.bnsf.com/role/AccumulatedOtherComprehensiveIncome Accumulated Other Comprehensive Income Notes 23 false false R24.htm 2204201 - Disclosure - Significant Accounting Policies (Policies) Sheet http://www.bnsf.com/role/SignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://www.bnsf.com/role/SignificantAccountingPolicies 24 false false R25.htm 2308301 - Disclosure - Revenue from Contracts with Customers (Tables) Sheet http://www.bnsf.com/role/RevenuefromContractswithCustomersTables Revenue from Contracts with Customers (Tables) Tables http://www.bnsf.com/role/RevenuefromContractswithCustomers 25 false false R26.htm 2311302 - Disclosure - Income Taxes (Tables) Sheet http://www.bnsf.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.bnsf.com/role/IncomeTaxes 26 false false R27.htm 2320303 - Disclosure - Property and Equipment, Net (Tables) Sheet http://www.bnsf.com/role/PropertyandEquipmentNetTables Property and Equipment, Net (Tables) Tables http://www.bnsf.com/role/PropertyandEquipmentNet 27 false false R28.htm 2325304 - Disclosure - Leases (Tables) Sheet http://www.bnsf.com/role/LeasesTables Leases (Tables) Tables http://www.bnsf.com/role/Leases 28 false false R29.htm 2332305 - Disclosure - Other Assets (Tables) Sheet http://www.bnsf.com/role/OtherAssetsTables Other Assets (Tables) Tables http://www.bnsf.com/role/OtherAssets 29 false false R30.htm 2335306 - Disclosure - Accounts Payable and Other Current Liabilities (Tables) Sheet http://www.bnsf.com/role/AccountsPayableandOtherCurrentLiabilitiesTables Accounts Payable and Other Current Liabilities (Tables) Tables http://www.bnsf.com/role/AccountsPayableandOtherCurrentLiabilities 30 false false R31.htm 2338307 - Disclosure - Debt (Tables) Sheet http://www.bnsf.com/role/DebtTables Debt (Tables) Tables http://www.bnsf.com/role/Debt 31 false false R32.htm 2344308 - Disclosure - Commitments and Contingencies (Tables) Sheet http://www.bnsf.com/role/CommitmentsandContingenciesTables Commitments and Contingencies (Tables) Tables http://www.bnsf.com/role/CommitmentsandContingencies 32 false false R33.htm 2349309 - Disclosure - Employment Benefit Plans (Tables) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansTables Employment Benefit Plans (Tables) Tables http://www.bnsf.com/role/EmploymentBenefitPlans 33 false false R34.htm 2360310 - Disclosure - Related Party Transactions (Tables) Sheet http://www.bnsf.com/role/RelatedPartyTransactionsTables Related Party Transactions (Tables) Tables http://www.bnsf.com/role/RelatedPartyTransactions 34 false false R35.htm 2363311 - Disclosure - Accumulated Other Comprehensive Income (Tables) Sheet http://www.bnsf.com/role/AccumulatedOtherComprehensiveIncomeTables Accumulated Other Comprehensive Income (Tables) Tables http://www.bnsf.com/role/AccumulatedOtherComprehensiveIncome 35 false false R36.htm 2402401 - Disclosure - The Company (Details) Sheet http://www.bnsf.com/role/TheCompanyDetails The Company (Details) Details http://www.bnsf.com/role/TheCompany 36 false false R37.htm 2409403 - Disclosure - Revenue from Contracts with Customers (Details) Sheet http://www.bnsf.com/role/RevenuefromContractswithCustomersDetails Revenue from Contracts with Customers (Details) Details http://www.bnsf.com/role/RevenuefromContractswithCustomersTables 37 false false R38.htm 2412404 - Disclosure - Income Tax Expense(Benefit) (Details) Sheet http://www.bnsf.com/role/IncomeTaxExpenseBenefitDetails Income Tax Expense(Benefit) (Details) Details 38 false false R39.htm 2413405 - Disclosure - Reconciliation of Statutory and Effective Tax Rates (Details) Sheet http://www.bnsf.com/role/ReconciliationofStatutoryandEffectiveTaxRatesDetails Reconciliation of Statutory and Effective Tax Rates (Details) Details 39 false false R40.htm 2414406 - Disclosure - Components of Deferred Tax Assets / (Liabilities) (Details) Sheet http://www.bnsf.com/role/ComponentsofDeferredTaxAssetsLiabilitiesDetails Components of Deferred Tax Assets / (Liabilities) (Details) Details 40 false false R41.htm 2415407 - Disclosure - Income Taxes Narrative (Details) Sheet http://www.bnsf.com/role/IncomeTaxesNarrativeDetails Income Taxes Narrative (Details) Details 41 false false R42.htm 2416408 - Disclosure - Uncertain Tax Positions (Details) Sheet http://www.bnsf.com/role/UncertainTaxPositionsDetails Uncertain Tax Positions (Details) Details 42 false false R43.htm 2418409 - Disclosure - Accounts Receivable, Net (Details) Sheet http://www.bnsf.com/role/AccountsReceivableNetDetails Accounts Receivable, Net (Details) Details http://www.bnsf.com/role/AccountsReceivableNet 43 false false R44.htm 2421410 - Disclosure - Property and Equipment, Net (Details) Sheet http://www.bnsf.com/role/PropertyandEquipmentNetDetails Property and Equipment, Net (Details) Details http://www.bnsf.com/role/PropertyandEquipmentNetTables 44 false false R45.htm 2423411 - Disclosure - Goodwill Impairment and Carrying Value (Details) Sheet http://www.bnsf.com/role/GoodwillImpairmentandCarryingValueDetails Goodwill Impairment and Carrying Value (Details) Details 45 false false R46.htm 2426412 - Disclosure - Lease Cost (Details) Sheet http://www.bnsf.com/role/LeaseCostDetails Lease Cost (Details) Details 46 false false R47.htm 2427413 - Disclosure - Assets and Liabilities (Details) Sheet http://www.bnsf.com/role/AssetsandLiabilitiesDetails Assets and Liabilities (Details) Details 47 false false R48.htm 2428414 - Disclosure - Supplemental Cash Flow Information (Details) Sheet http://www.bnsf.com/role/SupplementalCashFlowInformationDetails Supplemental Cash Flow Information (Details) Details 48 false false R49.htm 2429415 - Disclosure - Other Information (Details) Sheet http://www.bnsf.com/role/OtherInformationDetails Other Information (Details) Details 49 false false R50.htm 2430416 - Disclosure - Maturities of Lease Liabilities (Details) Sheet http://www.bnsf.com/role/MaturitiesofLeaseLiabilitiesDetails Maturities of Lease Liabilities (Details) Details 50 false false R51.htm 2433417 - Disclosure - Other Assets (Details) Sheet http://www.bnsf.com/role/OtherAssetsDetails Other Assets (Details) Details http://www.bnsf.com/role/OtherAssetsTables 51 false false R52.htm 2436418 - Disclosure - Accounts Payable and Other Current Liabilities (Details) Sheet http://www.bnsf.com/role/AccountsPayableandOtherCurrentLiabilitiesDetails Accounts Payable and Other Current Liabilities (Details) Details http://www.bnsf.com/role/AccountsPayableandOtherCurrentLiabilitiesTables 52 false false R53.htm 2439419 - Disclosure - Debt Outstanding (Details) Sheet http://www.bnsf.com/role/DebtOutstandingDetails Debt Outstanding (Details) Details 53 false false R54.htm 2440420 - Disclosure - Notes and Debentures Narrative (Details) Notes http://www.bnsf.com/role/NotesandDebenturesNarrativeDetails Notes and Debentures Narrative (Details) Details 54 false false R55.htm 2441421 - Disclosure - Debt Obligation Maturities (Details) Sheet http://www.bnsf.com/role/DebtObligationMaturitiesDetails Debt Obligation Maturities (Details) Details 55 false false R56.htm 2442422 - Disclosure - Guarantees (Details) Sheet http://www.bnsf.com/role/GuaranteesDetails Guarantees (Details) Details 56 false false R57.htm 2445423 - Disclosure - Commitments and Contingencies Personal Injury (Details) Sheet http://www.bnsf.com/role/CommitmentsandContingenciesPersonalInjuryDetails Commitments and Contingencies Personal Injury (Details) Details 57 false false R58.htm 2446424 - Disclosure - Commitments and Contingencies Environmental (Details) Sheet http://www.bnsf.com/role/CommitmentsandContingenciesEnvironmentalDetails Commitments and Contingencies Environmental (Details) Details 58 false false R59.htm 2447425 - Disclosure - Commitments and Contingencies BNSF Insurance Company (Details) Sheet http://www.bnsf.com/role/CommitmentsandContingenciesBNSFInsuranceCompanyDetails Commitments and Contingencies BNSF Insurance Company (Details) Details 59 false false R60.htm 2450426 - Disclosure - Employment Benefit Plans Net Cost (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansNetCostDetails Employment Benefit Plans Net Cost (Details) Details 60 false false R61.htm 2451427 - Disclosure - Employment Benefit Plans Change in Benefit Obligation (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansChangeinBenefitObligationDetails Employment Benefit Plans Change in Benefit Obligation (Details) Details 61 false false R62.htm 2452428 - Disclosure - Employment Benefit Plans Change in Plan Assets (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansChangeinPlanAssetsDetails Employment Benefit Plans Change in Plan Assets (Details) Details 62 false false R63.htm 2453429 - Disclosure - Employment Benefit Plans Plans with ABO in Excess of Plan Assets (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansPlanswithABOinExcessofPlanAssetsDetails Employment Benefit Plans Plans with ABO in Excess of Plan Assets (Details) Details 63 false false R64.htm 2454430 - Disclosure - Employment Benefit Plans AOCI (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansAOCIDetails Employment Benefit Plans AOCI (Details) Details http://www.bnsf.com/role/EmploymentBenefitPlansTables 64 false false R65.htm 2455431 - Disclosure - Employment Benefit Plans Assumptions Used (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansAssumptionsUsedDetails Employment Benefit Plans Assumptions Used (Details) Details 65 false false R66.htm 2456432 - Disclosure - Employment Benefit Plans Plan Assets (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansPlanAssetsDetails Employment Benefit Plans Plan Assets (Details) Details 66 false false R67.htm 2457433 - Disclosure - Employment Benefit Plans Expected Benefit Payments (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansExpectedBenefitPaymentsDetails Employment Benefit Plans Expected Benefit Payments (Details) Details 67 false false R68.htm 2458434 - Disclosure - Employment Benefit Plans Other Details (Details) Sheet http://www.bnsf.com/role/EmploymentBenefitPlansOtherDetailsDetails Employment Benefit Plans Other Details (Details) Details 68 false false R69.htm 2461435 - Disclosure - Related Party Transactions (Details) Sheet http://www.bnsf.com/role/RelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://www.bnsf.com/role/RelatedPartyTransactionsTables 69 false false R70.htm 2464436 - Disclosure - Accumulated Other Comprehensive Income Reclassifications out of AOCI (Details) Sheet http://www.bnsf.com/role/AccumulatedOtherComprehensiveIncomeReclassificationsoutofAOCIDetails Accumulated Other Comprehensive Income Reclassifications out of AOCI (Details) Details 70 false false All Reports Book All Reports bni-20211231.htm bni-20211231.xsd bni-20211231_cal.xml bni-20211231_def.xml bni-20211231_lab.xml bni-20211231_pre.xml llc-123121x10kex231.htm llc-123121x10kex241.htm llc-123121x10kex311.htm llc-123121x10kex312.htm llc-123121x10kex321.htm llc-123121x10kex463.htm bni-20211231_g1.jpg bni-20211231_g2.jpg http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true