$NSC
NORFOLK SOUTHERN CORP Stock $nsc

$nsc Overview Financials Valuation SEC Filings Company Website

2014 Form 10-K Financial Statement

#000070216515000023 Filed on February 11, 2015

Income Statement

Concept	2014	2013 Q4	2013 Q3
Revenue	$11.62B	$2.881B	$2.824B
YoY Change	3.37%	7.34%	4.86%
Cost Of Revenue	$6.805B	$1.767B	$1.745B
YoY Change	-3.78%	1.73%	0.75%
Gross Profit	$4.819B	$1.114B	$1.079B
YoY Change	15.48%	17.63%	12.28%
Gross Profit Margin	41.46%	38.67%	38.21%
Selling, General & Admin	$293.0M
YoY Change
% of Gross Profit	6.08%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$956.0M	$235.0M	$231.0M
YoY Change	3.69%	0.43%	-0.43%
% of Gross Profit	19.84%	21.1%	21.41%
Operating Expenses	$8.049B	$233.0M	$1.975B
YoY Change	0.76%	0.0%	758.7%
Operating Profit	$3.575B	$881.0M	$849.0M
YoY Change	9.76%	23.39%	16.14%
Interest Expense	$545.0M	-$137.0M	$131.0M
YoY Change	3.81%	6.2%	-205.65%
% of Operating Profit	15.24%	-15.55%	15.43%
Other Income/Expense, Net	$104.0M	$39.00M	$30.00M
YoY Change	-55.36%	8.33%	-9.09%
Pretax Income	$3.134B	$783.0M	$748.0M
YoY Change	5.7%	26.09%	16.88%
Income Tax	$1.134B	$270.0M	$266.0M
% Of Pretax Income	36.18%	34.48%	35.56%
Net Earnings	$2.000B	$513.0M	$482.0M
YoY Change	4.71%	24.21%	19.9%
Net Earnings / Revenue	17.21%	17.81%	17.07%
Basic Earnings Per Share	$6.44	$1.66	$1.55
Diluted Earnings Per Share	$6.39	$1.64	$1.53
COMMON SHARES
Basic Shares Outstanding	309.4M shares
Diluted Shares Outstanding	312.5M shares

Balance Sheet

Concept	2014	2013 Q4	2013 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$973.0M	$1.561B	$1.004B
YoY Change	-37.67%	133.68%	41.81%
Cash & Equivalents	$973.0M	$1.443B	$984.0M
Short-Term Investments		$118.0M	$20.00M
Other Short-Term Assets	$514.0M	$87.00M	$183.0M
YoY Change	92.51%	-65.06%	3.39%
Inventory	$236.0M	$223.0M	$224.0M
Prepaid Expenses
Receivables	$1.055B	$1.024B	$1.083B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.778B	$3.075B	$2.494B
YoY Change	-9.66%	37.15%	13.42%
LONG-TERM ASSETS
Property, Plant & Equipment	$27.69B	$26.65B	$26.41B
YoY Change	3.94%	3.53%	4.56%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.679B	$2.002B	$2.395B
YoY Change	9.84%	-12.96%	3.46%
Other Assets	$49.00M	$324.0M	$63.00M
YoY Change	-84.88%	406.25%	-4.55%
Total Long-Term Assets	$30.42B	$29.41B	$28.87B
YoY Change	3.45%	4.65%	4.45%
TOTAL ASSETS
Total Short-Term Assets	$2.778B	$3.075B	$2.494B
Total Long-Term Assets	$30.42B	$29.41B	$28.87B
Total Assets	$33.20B	$32.48B	$31.37B
YoY Change	2.21%	7.06%	5.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.233B	$1.265B	$1.267B
YoY Change	80.0%	-7.12%	0.56%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$100.0M	$100.0M	$0.00
YoY Change	0.0%	-50.0%
Long-Term Debt Due	$2.000M	$445.0M	$447.0M
YoY Change	-99.55%	790.0%	759.62%
Total Short-Term Liabilities	$1.780B	$2.305B	$2.332B
YoY Change	-22.78%	10.76%	27.85%
LONG-TERM LIABILITIES
Long-Term Debt	$8.883B	$8.903B	$8.499B
YoY Change	-0.22%	5.59%	0.84%
Other Long-Term Liabilities	$1.312B	$1.444B	$2.166B
YoY Change	-9.14%	-35.45%	7.33%
Total Long-Term Liabilities	$10.20B	$1.444B	$10.67B
YoY Change	-1.47%	-86.47%	2.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.780B	$2.305B	$2.332B
Total Long-Term Liabilities	$10.20B	$1.444B	$10.67B
Total Liabilities	$20.79B	$21.19B	$21.07B
YoY Change	-1.9%	2.97%	4.97%
SHAREHOLDERS EQUITY
Retained Earnings		$9.339B
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)		$19.00M
YoY Change
Treasury Stock Shares
Shareholders Equity	$12.41B	$11.29B	$10.29B
YoY Change
Total Liabilities & Shareholders Equity	$33.20B	$32.48B	$31.37B
YoY Change	2.21%	7.06%	5.11%

Cashflow Statement

Concept	2014	2013 Q4	2013 Q3
OPERATING ACTIVITIES
Net Income	$2.000B	$513.0M	$482.0M
YoY Change	4.71%	24.21%	19.9%
Depreciation, Depletion And Amortization	$956.0M	$235.0M	$231.0M
YoY Change	3.69%	0.43%	-0.43%
Cash From Operating Activities	$2.852B	$674.0M	$898.0M
YoY Change	-7.34%	14.43%	10.46%
INVESTING ACTIVITIES
Capital Expenditures	$2.118B	-$501.0M	-$586.0M
YoY Change	7.46%	-30.32%	5.78%
Acquisitions
YoY Change
Other Investing Activities	-$106.0M	-$24.00M	$24.00M
YoY Change	68.25%	-113.56%	-29.41%
Cash From Investing Activities	-$2.002B	-$525.0M	-$562.0M
YoY Change	5.7%	-3.14%	8.08%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$318.0M
YoY Change	-49.28%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$1.320B	310.0M	61.00M
YoY Change	235.03%	-456.32%	38.64%
NET CHANGE
Cash From Operating Activities	$2.852B	674.0M	898.0M
Cash From Investing Activities	-$2.002B	-525.0M	-562.0M
Cash From Financing Activities	-$1.320B	310.0M	61.00M
Net Change In Cash	-$470.0M	459.0M	397.0M
YoY Change	-159.49%	-1247.5%	17.8%
FREE CASH FLOW
Cash From Operating Activities	$2.852B	$674.0M	$898.0M
Capital Expenditures	$2.118B	-$501.0M	-$586.0M
Free Cash Flow	$734.0M	$1.175B	$1.484B
YoY Change	-33.69%	-10.17%	8.56%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014	dei	Amendment Flag AmendmentFlag	false
CY2014	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2014	dei	Document Type DocumentType	10-K
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0000702165
CY2015Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	307411965	shares
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2014Q2	dei	Entity Public Float EntityPublicFloat	31787780476	USD
CY2014	dei	Entity Registrant Name EntityRegistrantName	NORFOLK SOUTHERN CORP
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2014	nsc	Account Receivable Securitization Facility Term Years AccountReceivableSecuritizationFacilityTermYears	P2Y
CY2013Q4	nsc	Accounts Receivable Securitization Balance AccountsReceivableSecuritizationBalance	200000000	USD
CY2014Q4	nsc	Accounts Receivable Securitization Balance AccountsReceivableSecuritizationBalance	200000000	USD
CY2014	nsc	Accounts Receivable Securitization Total Facility AccountsReceivableSecuritizationTotalFacility	350000000	USD
CY2013Q4	nsc	Accumulated Depreciation Associated With Costs Of Obtaining Rights To Natural Resources AccumulatedDepreciationAssociatedWithCostsOfObtainingRightsToNaturalResources	195000000	USD
CY2014Q4	nsc	Accumulated Depreciation Associated With Costs Of Obtaining Rights To Natural Resources AccumulatedDepreciationAssociatedWithCostsOfObtainingRightsToNaturalResources	196000000	USD
CY2013Q4	nsc	Accumulated Depreciation Associated With Railway Property Recorded Pursuant To Capital Leases AccumulatedDepreciationAssociatedWithRailwayPropertyRecordedPursuantToCapitalLeases	3000000	USD
CY2014Q4	nsc	Accumulated Depreciation Associated With Railway Property Recorded Pursuant To Capital Leases AccumulatedDepreciationAssociatedWithRailwayPropertyRecordedPursuantToCapitalLeases	3000000	USD
CY2013	nsc	Accumulated Other Comprehensive Income Loss Net Gain Loss AccumulatedOtherComprehensiveIncomeLossNetGainLoss	639000000	USD
CY2014	nsc	Accumulated Other Comprehensive Income Loss Net Gain Loss AccumulatedOtherComprehensiveIncomeLossNetGainLoss	-38000000	USD
CY2013	nsc	Accumulated Other Comprehensive Income Loss Reclassification Adjustments AccumulatedOtherComprehensiveIncomeLossReclassificationAdjustments	89000000	USD
CY2014	nsc	Accumulated Other Comprehensive Income Loss Reclassification Adjustments AccumulatedOtherComprehensiveIncomeLossReclassificationAdjustments	21000000	USD
CY2014	nsc	Amended Ltip Plan Award Granted As Option Or Stock Appreciation Right AmendedLtipPlanAwardGrantedAsOptionOrStockAppreciationRight	1	shares
CY2014	nsc	Amended Ltip Plan Award Granted As Other Than Option Or Stock Appreciation Right AmendedLtipPlanAwardGrantedAsOtherThanOptionOrStockAppreciationRight	1.61	shares
CY2014	nsc	Authority To Issue Debt Equity Securities AuthorityToIssueDebtEquitySecurities	800000000	USD
CY2014	nsc	Average Rate Of Imputed Interest On Capital Leases AverageRateOfImputedInterestOnCapitalLeases	0.0560
CY2013Q4	nsc	Casualty And Other Claims CasualtyAndOtherClaims	214000000	USD
CY2014Q4	nsc	Casualty And Other Claims CasualtyAndOtherClaims	199000000	USD
CY2013Q4	nsc	Casualty And Other Claims Current CasualtyAndOtherClaimsCurrent	166000000	USD
CY2014Q4	nsc	Casualty And Other Claims Current CasualtyAndOtherClaimsCurrent	187000000	USD
CY2012	nsc	Charitable Contributions CharitableContributions	9000000	USD
CY2013	nsc	Charitable Contributions CharitableContributions	11000000	USD
CY2014	nsc	Charitable Contributions CharitableContributions	9000000	USD
CY2012	nsc	Contingent Rents ContingentRents	73000000	USD
CY2013	nsc	Contingent Rents ContingentRents	82000000	USD
CY2014	nsc	Contingent Rents ContingentRents	92000000	USD
CY2014Q4	nsc	Environmental Locations Representative Sample Liability EnvironmentalLocationsRepresentativeSampleLiability	39000000	USD
CY2014	nsc	Environmental Locations Representative Sample Liability Period EnvironmentalLocationsRepresentativeSampleLiabilityPeriod	P5Y
CY2013Q4	nsc	Due To Affiliate Average Interest Rate DueToAffiliateAverageInterestRate	0.044
CY2014Q4	nsc	Due To Affiliate Average Interest Rate DueToAffiliateAverageInterestRate	0.029
CY2013Q4	nsc	Due To Conrail DueToConrail	187000000	USD
CY2014Q4	nsc	Due To Conrail DueToConrail	56000000	USD
CY2014	nsc	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Longterm Returnon Assets Recognition Period DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongtermReturnonAssetsRecognitionPeriod	P3Y
CY2014	nsc	Employees Covered By Collective Bargaining Agreements EmployeesCoveredByCollectiveBargainingAgreements	0.8
CY2014	nsc	Depreciation Studies Description DepreciationStudiesDescription	Our depreciation studies are conducted about every three years for equipment and every six years for track assets and other roadway property.
CY2013Q4	nsc	Costs Of Obtaining Rights To Natural Resources CostsOfObtainingRightsToNaturalResources	336000000	USD
CY2014Q4	nsc	Costs Of Obtaining Rights To Natural Resources CostsOfObtainingRightsToNaturalResources	336000000	USD
CY2014Q4	nsc	Credit Agreement CreditAgreement	750000000	USD
CY2014	nsc	Credit Agreement Due Date Year CreditAgreementDueDateYear	2016
CY2014	nsc	Credit Agreement Term Years CreditAgreementTermYears	P5Y
CY2013Q4	nsc	Environmental Cleanup Locations EnvironmentalCleanupLocations	142	location
CY2014Q4	nsc	Environmental Cleanup Locations EnvironmentalCleanupLocations	146	location
CY2014Q4	nsc	Environmental Locations Representative Sample EnvironmentalLocationsRepresentativeSample	15	location
CY2014Q4	nsc	Environmental Responsible Party In Conjunction With Other Parties EnvironmentalResponsiblePartyInConjunctionWithOtherParties	11	location
CY2012	nsc	Expenses For Use Of Shared Assets Area ExpensesForUseOfSharedAssetsArea	147000000	USD
CY2013	nsc	Expenses For Use Of Shared Assets Area ExpensesForUseOfSharedAssetsArea	146000000	USD
CY2014	nsc	Expenses For Use Of Shared Assets Area ExpensesForUseOfSharedAssetsArea	144000000	USD
CY2013	nsc	Held To Maturity Commercial Paper Maturity Date HeldToMaturityCommercialPaperMaturityDate	P2M
CY2014	nsc	Held To Maturity Commercial Paper Maturity Date HeldToMaturityCommercialPaperMaturityDate	P2M
CY2013	nsc	Held To Maturity Federal Government Bond Maturity Date HeldToMaturityFederalGovernmentBondMaturityDate	P3M
CY2014	nsc	Held To Maturity Federal Government Bond Maturity Date HeldToMaturityFederalGovernmentBondMaturityDate	P3M
CY2014Q4	nsc	Imputed Interest On Capital Leases ImputedInterestOnCapitalLeases	1000000	USD
CY2014	nsc	Intent To Refinance IntentToRefinance	100000000	USD
CY2014Q4	nsc	Liable Guarantors Of Indebtedness LiableGuarantorsOfIndebtedness	7000000	USD
CY2013	nsc	Long Term Advances Due To Affiliate Maturity Date LongTermAdvancesDueToAffiliateMaturityDate	2035
CY2014	nsc	Long Term Advances Due To Affiliate Maturity Date LongTermAdvancesDueToAffiliateMaturityDate	2044
CY2013Q4	nsc	Long Term Debt Capital Lease Obligations And Short Term Debt Current LongTermDebtCapitalLeaseObligationsAndShortTermDebtCurrent	545000000	USD
CY2014Q4	nsc	Long Term Debt Capital Lease Obligations And Short Term Debt Current LongTermDebtCapitalLeaseObligationsAndShortTermDebtCurrent	102000000	USD
CY2012	nsc	Materials And Other MaterialsAndOther	859000000	USD
CY2013	nsc	Materials And Other MaterialsAndOther	828000000	USD
CY2014	nsc	Materials And Other MaterialsAndOther	940000000	USD
CY2013Q4	nsc	Materials And Supplies MaterialsAndSupplies	223000000	USD
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CY2013Q4	nsc	Net Pension Obligations NetPensionObligations	218000000	USD
CY2014Q4	nsc	Net Pension Obligations NetPensionObligations	260000000	USD
CY2012Q3	nsc	New Stock Repurchase Program NewStockRepurchaseProgram	50000000	shares
CY2012	nsc	Nonoperating Depletion And Depreciation NonoperatingDepletionAndDepreciation	6000000	USD
CY2013	nsc	Nonoperating Depletion And Depreciation NonoperatingDepletionAndDepreciation	6000000	USD
CY2014	nsc	Nonoperating Depletion And Depreciation NonoperatingDepletionAndDepreciation	5000000	USD
CY2014	nsc	Number Of Depreciable Asset Classes Used Range Low End NumberOfDepreciableAssetClassesUsedRangeLowEnd	70	depreciable_asset_class
CY2014	nsc	Operating Route Miles OperatingRouteMiles	20000	mi
CY2012	nsc	Options With Exercise Prices Above Average Market Price OptionsWithExercisePricesAboveAverageMarketPrice	2000000	shares
CY2013	nsc	Options With Exercise Prices Above Average Market Price OptionsWithExercisePricesAboveAverageMarketPrice	0	shares
CY2014	nsc	Options With Exercise Prices Above Average Market Price OptionsWithExercisePricesAboveAverageMarketPrice	0	shares
CY2012	nsc	Other Comprehensive Income Loss Of Equity Investees OtherComprehensiveIncomeLossOfEquityInvestees	-13000000	USD
CY2012	nsc	Other Income Expense Net OtherIncomeExpenseNet	-23000000	USD
CY2013	nsc	Other Income Expense Net OtherIncomeExpenseNet	-15000000	USD
CY2013Q4	nsc	Pension Plan Asset Allocation Cash And Cash Equivalents PensionPlanAssetAllocationCashAndCashEquivalents	0.04
CY2014Q4	nsc	Pension Plan Asset Allocation Cash And Cash Equivalents PensionPlanAssetAllocationCashAndCashEquivalents	0.02
CY2014	nsc	Other Income Expense Net OtherIncomeExpenseNet	-15000000	USD
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CY2014	nsc	Other Comprehensive Income Loss Of Equity Investees OtherComprehensiveIncomeLossOfEquityInvestees	-8000000	USD
CY2013	nsc	Other Comprehensive Income Loss Of Equity Investees Net Gain Loss OtherComprehensiveIncomeLossOfEquityInvesteesNetGainLoss	39000000	USD
CY2014	nsc	Other Comprehensive Income Loss Of Equity Investees Net Gain Loss OtherComprehensiveIncomeLossOfEquityInvesteesNetGainLoss	-7000000	USD
CY2012Q4	nsc	Other Comprehensive Income Loss Of Equity Investees Net Of Tax OtherComprehensiveIncomeLossOfEquityInvesteesNetOfTax	-110000000	USD
CY2013Q4	nsc	Other Comprehensive Income Loss Of Equity Investees Net Of Tax OtherComprehensiveIncomeLossOfEquityInvesteesNetOfTax	-71000000	USD
CY2014Q4	nsc	Other Comprehensive Income Loss Of Equity Investees Net Of Tax OtherComprehensiveIncomeLossOfEquityInvesteesNetOfTax	-78000000	USD
CY2013Q4	nsc	Pension Plan Asset Allocation Debt Securities PensionPlanAssetAllocationDebtSecurities	0.20
CY2014Q4	nsc	Pension Plan Asset Allocation Debt Securities PensionPlanAssetAllocationDebtSecurities	0.25
CY2013Q4	nsc	Pension Plan Asset Allocation Domestic Equity Securities PensionPlanAssetAllocationDomesticEquitySecurities	0.54
CY2014Q4	nsc	Pension Plan Asset Allocation Domestic Equity Securities PensionPlanAssetAllocationDomesticEquitySecurities	0.50
CY2013Q4	nsc	Pension Plan Asset Allocation International Equity Securities PensionPlanAssetAllocationInternationalEquitySecurities	0.22
CY2014Q4	nsc	Pension Plan Asset Allocation International Equity Securities PensionPlanAssetAllocationInternationalEquitySecurities	0.23
CY2013Q4	nsc	Pension Plan Assets Commingled Funds PensionPlanAssetsCommingledFunds	95000000	USD
CY2014Q4	nsc	Pension Plan Assets Commingled Funds PensionPlanAssetsCommingledFunds	81000000	USD
CY2013Q4	nsc	Pension Plan Assets Common Stock PensionPlanAssetsCommonStock	1245000000	USD
CY2014Q4	nsc	Pension Plan Assets Common Stock PensionPlanAssetsCommonStock	1180000000	USD
CY2013Q4	nsc	Pension Plan Assets Interest Bearing Cash PensionPlanAssetsInterestBearingCash	83000000	USD
CY2014Q4	nsc	Pension Plan Assets Interest Bearing Cash PensionPlanAssetsInterestBearingCash	41000000	USD
CY2014Q4	nsc	Pension Plan Assets Preferred Stock PensionPlanAssetsPreferredStock	2000000	USD
CY2013Q4	nsc	Pension Plan Assets Total PensionPlanAssetsTotal	2115000000	USD
CY2014Q4	nsc	Pension Plan Assets Total PensionPlanAssetsTotal	2167000000	USD
CY2013Q4	nsc	Pension Plan Assets Us Government And Agencies Securities PensionPlanAssetsUsGovernmentAndAgenciesSecurities	4000000	USD
CY2014Q4	nsc	Pension Plan Assets Us Government And Agencies Securities PensionPlanAssetsUsGovernmentAndAgenciesSecurities	4000000	USD
CY2012	nsc	Proceeds From Stock Options Exercised Including Tax Benefit ProceedsFromStockOptionsExercisedIncludingTaxBenefit	89000000	USD
CY2013	nsc	Proceeds From Stock Options Exercised Including Tax Benefit ProceedsFromStockOptionsExercisedIncludingTaxBenefit	131000000	USD
CY2014	nsc	Proceeds From Stock Options Exercised Including Tax Benefit ProceedsFromStockOptionsExercisedIncludingTaxBenefit	130000000	USD
CY2012	nsc	Purchased Services And Rents PurchasedServicesAndRents	1604000000	USD
CY2013	nsc	Purchased Services And Rents PurchasedServicesAndRents	1629000000	USD
CY2014	nsc	Purchased Services And Rents PurchasedServicesAndRents	1687000000	USD
CY2013Q4	nsc	Railway Property Recorded Pursuant To Capital Leases RailwayPropertyRecordedPursuantToCapitalLeases	8000000	USD
CY2014Q4	nsc	Railway Property Recorded Pursuant To Capital Leases RailwayPropertyRecordedPursuantToCapitalLeases	8000000	USD
CY2013Q4	nsc	Retiree Benefit Obligations RetireeBenefitObligations	64000000	USD
CY2014Q4	nsc	Retiree Benefit Obligations RetireeBenefitObligations	14000000	USD
CY2012	nsc	Section401 K Savings Plans Matching Contributions Section401KSavingsPlansMatchingContributions	18000000	USD
CY2013	nsc	Section401 K Savings Plans Matching Contributions Section401KSavingsPlansMatchingContributions	19000000	USD
CY2014	nsc	Section401 K Savings Plans Matching Contributions Section401KSavingsPlansMatchingContributions	20000000	USD
CY2014Q4	nsc	Self Insured For Bodily Injury And Property Damage To Third Parties Above SelfInsuredForBodilyInjuryAndPropertyDamageToThirdPartiesAbove	1200000000.0	USD
CY2014Q4	nsc	Self Insured For Bodily Injury And Property Damage To Third Parties Up To SelfInsuredForBodilyInjuryAndPropertyDamageToThirdPartiesUpTo	50000000	USD
CY2014Q4	nsc	Self Insured For Property Owned Above SelfInsuredForPropertyOwnedAbove	200000000	USD
CY2014Q4	nsc	Self Insured For Property Owned Up To SelfInsuredForPropertyOwnedUpTo	25000000	USD
CY2012	nsc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate When Dividend Equivalents Are Not Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsAreNotPaid	0.0230
CY2013	nsc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate When Dividend Equivalents Are Not Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsAreNotPaid	0.0286
CY2014	nsc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate When Dividend Equivalents Are Not Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsAreNotPaid	0.0229
CY2012	nsc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate When Dividend Equivalents Are Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsArePaid	0
CY2013	nsc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate When Dividend Equivalents Are Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsArePaid	0
CY2014	nsc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate When Dividend Equivalents Are Paid ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRateWhenDividendEquivalentsArePaid	0
CY2014	nsc	Stock Repurchased And Retired Since Inception Shares StockRepurchasedAndRetiredSinceInceptionShares	139800000	shares
CY2014	nsc	Stock Repurchased And Retired Since Inception Value StockRepurchasedAndRetiredSinceInceptionValue	8400000000	USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	685000000	USD
CY2014Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	748000000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1265000000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1233000000	USD
CY2013Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	97000000	USD
CY2014Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	110000000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1024000000	USD
CY2014Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1055000000	USD
CY2013Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	58000000	USD
CY2014Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	66000000	USD
CY2013Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear	15000000	USD
CY2014Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear	15000000	USD
CY2013Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	130000000	USD
CY2014Q4	us-gaap	Accrued Vacation Current AccruedVacationCurrent	132000000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	10387000000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	10814000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	999000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	310000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	320000000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1109000000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-381000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-398000000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2021000000	USD
CY2014Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2148000000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	42000000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	38000000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	37000000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	45000000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	54000000	USD
CY2014	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	44000000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3000000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	6000000	USD
CY2013Q4	us-gaap	Assets Assets	32483000000	USD
CY2014Q4	us-gaap	Assets Assets	33241000000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	3075000000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	2778000000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	4000000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	2000000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	0	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	0	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	0	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	2000000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	3000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	276000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	653000000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1443000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	973000000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	377000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	790000000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-470000000	USD
CY2013Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	289000000	USD
CY2014Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	470000000	USD
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.94
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.04
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.22
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2014Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1.00
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1350000000	shares
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1350000000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	308878402	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	308240130	shares
CY2013Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	310000000	USD
CY2014Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	310000000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1666000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2638000000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1983000000	USD
CY2012	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	916000000	USD
CY2013	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	916000000	USD
CY2014	us-gaap	Cost Of Services Depreciation CostOfServicesDepreciation	951000000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	569000000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	695000000	USD
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	729000000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	643000000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	793000000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	840000000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	74000000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	98000000	USD
CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	111000000	USD
CY2013Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-495000000	USD
CY2014Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	-474000000	USD
CY2013Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	9448000000	USD
CY2013Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	10673000000	USD
CY2014Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	10962000000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	339000000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	270000000	USD
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	299000000	USD
CY2014Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	9026000000	USD
CY2013Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	120000000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	366000000	USD
CY2014Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	116000000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	262000000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	294000000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	27000000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-8000000	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	630000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	606000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-8362000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-8650000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	180000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	167000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	598000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	573000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	54000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	45000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	462000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	454000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	114000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	107000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	32000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	33000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	8960000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9223000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	8542000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	8817000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	466000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	455000000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	8494000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	8768000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	1900000000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2200000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	11000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	1000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	12000000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	1000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	206000000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	244000000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	231000000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	274000000	USD
CY2014	us-gaap	Defined Benefit Plan Target Plan Asset Allocations Range Maximum DefinedBenefitPlanTargetPlanAssetAllocationsRangeMaximum	0.75
CY2014	us-gaap	Defined Benefit Plan Target Plan Asset Allocations Range Minimum DefinedBenefitPlanTargetPlanAssetAllocationsRangeMinimum	0.5
CY2013Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2014Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2012	us-gaap	Depreciation Depreciation	922000000	USD
CY2013	us-gaap	Depreciation Depreciation	922000000	USD
CY2014	us-gaap	Depreciation Depreciation	956000000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	624000000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	637000000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	687000000	USD
CY2013Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	187000000	USD
CY2014Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	56000000	USD
CY2013Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	133000000	USD
CY2014Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	280000000	USD
CY2013Q4	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent	133000000	USD
CY2014Q4	us-gaap	Due To Affiliate Noncurrent DueToAffiliateNoncurrent	280000000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.42
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.43
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.47
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.55
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.66
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.10
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.18
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
CY2014Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.80
CY2014Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.44
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.37
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.41
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.46
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.64
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.04
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.17
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.64
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.39
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.37
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.36
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.36
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01
CY2013	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-41000000	USD
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.03
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.02
CY2014	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.03
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements Domestic EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic	0.00
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements Domestic EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic	0.00
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements Domestic EffectiveIncomeTaxRateReconciliationTaxSettlementsDomestic	0.00
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0.00
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0.00
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.01
CY2012	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	47000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	93000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	93000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M18D
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	14000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	18000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	14000000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	28000000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	31000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	26000000	USD
CY2014Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	529000000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2002000000	USD
CY2014Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2047000000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	42000000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	38000000	USD
CY2014	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	37000000	USD
CY2012	us-gaap	Fuel Costs FuelCosts	1577000000	USD
CY2013	us-gaap	Fuel Costs FuelCosts	1613000000	USD
CY2014	us-gaap	Fuel Costs FuelCosts	1574000000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	5000000	USD
CY2013	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	101000000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	13000000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	6000000	USD
CY2013	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	104000000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	13000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2758000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2965000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3134000000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	34000000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	42000000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1009000000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1055000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1134000000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	965000000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1038000000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-31000000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	69000000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	69000000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1097000000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-16000000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	88000000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Settlements Domestic IncomeTaxReconciliationTaxSettlementsDomestic	-6000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Settlements Domestic IncomeTaxReconciliationTaxSettlementsDomestic	0	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Settlements Domestic IncomeTaxReconciliationTaxSettlementsDomestic	0	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-3000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-11000000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-20000000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	618000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	735000000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1102000000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	64000000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-85000000	USD
CY2014	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	31000000	USD
CY2012	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	7000000	USD
CY2013	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	7000000	USD
CY2014	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	13000000	USD
CY2012	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	6000000	USD
CY2013	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5000000	USD
CY2014	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	260000000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	82000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	53000000	USD
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	20000000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	18000000	USD
CY2014	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	19000000	USD
CY2012	us-gaap	Interest Costs Incurred InterestCostsIncurred	515000000	USD
CY2013	us-gaap	Interest Costs Incurred InterestCostsIncurred	543000000	USD
CY2014	us-gaap	Interest Costs Incurred InterestCostsIncurred	564000000	USD
CY2012	us-gaap	Interest Expense InterestExpense	495000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	525000000	USD
CY2014	us-gaap	Interest Expense InterestExpense	545000000	USD
CY2012	us-gaap	Interest Expense Other InterestExpenseOther	9000000	USD
CY2013	us-gaap	Interest Expense Other InterestExpenseOther	12000000	USD
CY2014	us-gaap	Interest Expense Other InterestExpenseOther	12000000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	473000000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	492000000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	522000000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	121000000	USD
CY2014Q4	us-gaap	Interest Payable Current InterestPayableCurrent	118000000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	8000000	USD
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	8000000	USD
CY2014	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2960000000	USD
CY2013	us-gaap	Labor And Related Expense LaborAndRelatedExpense	3002000000	USD
CY2014	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2897000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	203000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	201000000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	202000000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	21194000000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	20833000000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	32483000000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	33241000000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2305000000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1780000000	USD
CY2012	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	13000000	USD
CY2013	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	25000000	USD
CY2014	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	24000000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	9348000000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	8926000000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	8903000000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	8924000000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	445000000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	6689000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	585000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	600000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	550000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	500000000	USD
CY2013Q4	us-gaap	Long Term Investments LongTermInvestments	2439000000	USD
CY2014Q4	us-gaap	Long Term Investments LongTermInvestments	2679000000	USD
CY2014	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	879000000	USD
CY2012	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	47000000	USD
CY2013	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	41000000	USD
CY2014	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	36000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-694000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-394000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1320000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1994000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1894000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2002000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3065000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3078000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2852000000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	7916000000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	7988000000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	8049000000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	3124000000	USD
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	691000000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	836000000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	849000000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	881000000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	3257000000	USD
CY2014Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	667000000	USD
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	1019000000	USD
CY2014Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	998000000	USD
CY2014Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	891000000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	3575000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	711000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	83000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	47000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	58000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	65000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	75000000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	383000000	USD
CY2012	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	129000000	USD
CY2013	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	121000000	USD
CY2014	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	109000000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	85000000	USD
CY2014Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	96000000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	193000000	USD
CY2014Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	148000000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	87000000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	347000000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	324000000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	90000000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	600000000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-31000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-127000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1164000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-23000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-83000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	728000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	114000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1122000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	15000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-89000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-21000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-44000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	436000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-6000000	USD
CY2013Q4	us-gaap	Other Investments OtherInvestments	148000000	USD
CY2014Q4	us-gaap	Other Investments OtherInvestments	162000000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	270000000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	129000000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	228000000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1444000000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1312000000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	233000000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	38508000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	26645000000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	27694000000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104000000	USD
CY2012	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	29000000	USD
CY2013	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	10000000	USD
CY2014	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-134000000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-78000000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-63000000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-106000000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1288000000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	627000000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	318000000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	624000000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	637000000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	687000000	USD
CY2012	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	23000000	USD
CY2013	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	130000000	USD
CY2014	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	104000000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2241000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1971000000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2118000000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	566000000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	309000000	USD
CY2013Q4	us-gaap	Prepaid Taxes PrepaidTaxes	0	USD
CY2014Q4	us-gaap	Prepaid Taxes PrepaidTaxes	248000000	USD
CY2012	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	1491000000	USD
CY2013	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	989000000	USD
CY2014	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	200000000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	192000000	USD
CY2013	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	144000000	USD
CY2014	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	114000000	USD
CY2014	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	200000000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	1749000000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	450000000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	465000000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	482000000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	513000000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	1910000000	USD
CY2014Q1	us-gaap	Profit Loss ProfitLoss	368000000	USD
CY2014Q2	us-gaap	Profit Loss ProfitLoss	562000000	USD
CY2014Q3	us-gaap	Profit Loss ProfitLoss	559000000	USD
CY2014Q4	us-gaap	Profit Loss ProfitLoss	511000000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	2000000000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	37032000000	USD
CY2014	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	645000000	USD
CY2014	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	200000000	USD
CY2012	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	54000000	USD
CY2013	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	61000000	USD
CY2014	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	75000000	USD
CY2012	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	362000000	USD
CY2013	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	250000000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	9339000000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	10348000000	USD
CY2012	us-gaap	Revenues Revenues	11040000000	USD
CY2013Q1	us-gaap	Revenues Revenues	2738000000	USD
CY2013Q2	us-gaap	Revenues Revenues	2802000000	USD
CY2013Q3	us-gaap	Revenues Revenues	2824000000	USD
CY2013Q4	us-gaap	Revenues Revenues	2881000000	USD
CY2013	us-gaap	Revenues Revenues	11245000000	USD
CY2014Q1	us-gaap	Revenues Revenues	2689000000	USD
CY2014Q2	us-gaap	Revenues Revenues	3042000000	USD
CY2014Q3	us-gaap	Revenues Revenues	3023000000	USD
CY2014Q4	us-gaap	Revenues Revenues	2870000000	USD
CY2014	us-gaap	Revenues Revenues	11624000000	USD
CY2012	us-gaap	Royalty Income Nonoperating RoyaltyIncomeNonoperating	66000000	USD
CY2013	us-gaap	Royalty Income Nonoperating RoyaltyIncomeNonoperating	44000000	USD
CY2014	us-gaap	Royalty Income Nonoperating RoyaltyIncomeNonoperating	28000000	USD
CY2012	us-gaap	Royalty Revenue From Coal RoyaltyRevenueFromCoal	72000000	USD
CY2013	us-gaap	Royalty Revenue From Coal RoyaltyRevenueFromCoal	50000000	USD
CY2014	us-gaap	Royalty Revenue From Coal RoyaltyRevenueFromCoal	33000000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.29
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.30
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.27
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.27
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.24
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.23
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0196
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0188
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0279
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.27
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.26
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.25
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3091117	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	48.82
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	80000000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	106000000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	106000000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	7710	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	78.78
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	696310	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	280000000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7152178	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5831317	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	54.52
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	61.57
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	47.70
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	94.17
CY2014Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	188000000	USD
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y8M12D
CY2014	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P3Y10M24D
CY2013Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	100000000	USD
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	100000000	USD
CY2013Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0123
CY2014Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0128
CY2013Q4	us-gaap	Short Term Investments ShortTermInvestments	118000000	USD
CY2014Q4	us-gaap	Short Term Investments ShortTermInvestments	0	USD
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1809770	shares
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2570088	shares
CY2014	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2009461	shares
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	95000000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	155000000	USD
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	144000000	USD
CY2012	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	18800000	shares
CY2013	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	8300000	shares
CY2014	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	3100000	shares
CY2012	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1288000000	USD
CY2013	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	627000000	USD
CY2014	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	318000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9911000000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9760000000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11289000000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12408000000	USD
CY2014	us-gaap	Stockholders Equity Other StockholdersEquityOther	-3000000	USD
CY2013Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	148000000	USD
CY2014Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	162000000	USD
CY2013Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	177000000	USD
CY2014Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	193000000	USD
CY2012	us-gaap	Taxes Other TaxesOther	10000000	USD
CY2013	us-gaap	Taxes Other TaxesOther	10000000	USD
CY2014	us-gaap	Taxes Other TaxesOther	9000000	USD
CY2013Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	225000000	USD
CY2014Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	217000000	USD
CY2013Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	747000000	USD
CY2014Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	782000000	USD
CY2013Q4	us-gaap	Treasury Stock Number Of Shares Held TreasuryStockNumberOfSharesHeld	20320777	shares
CY2014Q4	us-gaap	Treasury Stock Number Of Shares Held TreasuryStockNumberOfSharesHeld	20320777	shares
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	19000000	USD
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	19000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	63000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	65000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	61000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	8000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	4000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	6000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-1000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	1000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	1000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-6000000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	28000000	USD
CY2013	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	13000000	USD
CY2014	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1000000	USD
CY2014	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;"> </font></div><div style="line-height:120%;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">The preparation of financial statements in accordance with U.S. Generally Accepted Accounting Principles (GAAP) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  We periodically review our estimates, including those related to the recoverability and useful lives of assets, as well as liabilities for litigation, environmental remediation, casualty claims, income taxes and pension and other postretirement benefits.  Changes in facts and circumstances may result in revised estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0000702165-15-000023-index-headers.html	Edgar Link	pending
0000702165-15-000023-index.html	Edgar Link	pending
0000702165-15-000023.txt	Edgar Link	pending
0000702165-15-000023-xbrl.zip	Edgar Link	pending
a2014stylizedsystemmapahalfu.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
image1a02.gif	Edgar Link	pending
nsc-20141231.xml	Edgar Link	completed
nsc-20141231.xsd	Edgar Link	pending
nsc-20141231_cal.xml	Edgar Link	unprocessable
nsc-20141231_def.xml	Edgar Link	unprocessable
nsc-20141231_lab.xml	Edgar Link	unprocessable
nsc-20141231_pre.xml	Edgar Link	unprocessable
nsc10-kexhibit10cc.htm	Edgar Link	pending
nsc10-kexhibit10hh.htm	Edgar Link	pending
nsc10-kexhibit10iii.htm	Edgar Link	pending
nsc10-kexhibit10jjj.htm	Edgar Link	pending
nsc10-kexhibit10kkk.htm	Edgar Link	pending
nsc10-kexhibit10lll.htm	Edgar Link	pending
nsc10-kexhibit10mmm.htm	Edgar Link	pending
nsc10-kexhibit10u.htm	Edgar Link	pending
nsc10-kexhibit10v.htm	Edgar Link	pending
nsc10-kexhibit12.htm	Edgar Link	pending
nsc10-kexhibit21.htm	Edgar Link	pending
nsc10-kexhibit23.htm	Edgar Link	pending
nsc10-kexhibit31a.htm	Edgar Link	pending
nsc10-kexhibit31b.htm	Edgar Link	pending
nsc10-kexhibit32.htm	Edgar Link	pending
nsc10-kexhibit99.htm	Edgar Link	pending
nsc1231201410-k.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$NSC
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2014 Form 10-K Financial Statement

#000070216515000023 Filed on February 11, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSC NORFOLK SOUTHERN CORP Stock $nsc

2014 Form 10-K Financial Statement

#000070216515000023 Filed on February 11, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSC
NORFOLK SOUTHERN CORP Stock $nsc