$NSC
NORFOLK SOUTHERN CORP Stock $nsc

$nsc Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000070216517000018 Filed on February 06, 2017

Income Statement

Concept	2016 Q4	2015 Q4	2015 Q3
Revenue	$2.490B	$2.518B	$2.713B
YoY Change	-1.11%	-12.26%	-10.25%
Cost Of Revenue	$1.457B	$1.589B	$1.616B
YoY Change	-8.31%	-8.63%	-9.67%
Gross Profit	$1.033B	$929.0M	$1.097B
YoY Change	11.19%	-17.86%	-11.1%
Gross Profit Margin	41.49%	36.89%	40.43%
Selling, General & Admin	$78.00M
YoY Change
% of Gross Profit	7.55%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$260.0M	$289.0M	$276.0M
YoY Change	-10.03%	19.92%	16.46%
% of Gross Profit	25.17%	31.11%	25.16%
Operating Expenses	$337.0M	$287.0M	$1.891B
YoY Change	17.42%	19.58%	-6.62%
Operating Profit	$761.0M	$642.0M	$822.0M
YoY Change	18.54%	-27.95%	-17.64%
Interest Expense	-$142.0M	-$142.0M	$137.0M
YoY Change	0.0%	10.08%	-0.72%
% of Operating Profit	-18.66%	-22.12%	16.67%
Other Income/Expense, Net	$87.00M	$24.00M	$39.00M
YoY Change	262.5%	-14.29%	21.88%
Pretax Income	$641.0M	$524.0M	$724.0M
YoY Change	22.33%	-33.67%	-18.83%
Income Tax	$225.0M	$163.0M	$272.0M
% Of Pretax Income	35.1%	31.11%	37.57%
Net Earnings	$416.0M	$361.0M	$452.0M
YoY Change	15.24%	-29.35%	-19.14%
Net Earnings / Revenue	16.71%	14.34%	16.66%
Basic Earnings Per Share	$1.43	$1.21	$1.50
Diluted Earnings Per Share	$1.42	$1.20	$1.49
COMMON SHARES
Basic Shares Outstanding			300.1M shares
Diluted Shares Outstanding			302.5M shares

Balance Sheet

Concept	2016 Q4	2015 Q4	2015 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$956.0M	$1.101B	$433.0M
YoY Change	-13.17%	13.16%	-69.76%
Cash & Equivalents	$956.0M	$1.101B	$433.0M
Short-Term Investments
Other Short-Term Assets	$133.0M	$194.0M	$55.00M
YoY Change	-31.44%	-44.09%	10.0%
Inventory	$257.0M	$271.0M	$288.0M
Prepaid Expenses
Receivables	$945.0M	$946.0M	$1.103B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.291B	$2.512B	$2.002B
YoY Change	-8.8%	-9.58%	-33.53%
LONG-TERM ASSETS
Property, Plant & Equipment	$29.75B	$28.99B	$28.68B
YoY Change	2.62%	4.69%	5.33%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.176B	$2.102B	$2.740B
YoY Change	3.52%	2.69%	4.98%
Other Assets	$73.00M	$63.00M	$103.0M
YoY Change	15.87%	28.57%	-70.9%
Total Long-Term Assets	$32.60B	$31.63B	$31.53B
YoY Change	3.08%	3.96%	4.41%
TOTAL ASSETS
Total Short-Term Assets	$2.291B	$2.512B	$2.002B
Total Long-Term Assets	$32.60B	$31.63B	$31.53B
Total Assets	$34.89B	$34.14B	$33.53B
YoY Change	2.21%	2.83%	0.97%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.215B	$1.091B	$1.160B
YoY Change	11.37%	-11.52%	-16.37%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$100.0M	$200.0M	$100.0M
YoY Change	-50.0%	100.0%
Long-Term Debt Due	$550.0M	$500.0M	$500.0M
YoY Change	10.0%	24900.0%	24900.0%
Total Short-Term Liabilities	$2.339B	$2.231B	$2.367B
YoY Change	4.84%	25.34%	13.69%
LONG-TERM LIABILITIES
Long-Term Debt	$9.562B	$9.393B	$8.896B
YoY Change	1.8%	5.74%	-0.26%
Other Long-Term Liabilities	$1.442B	$1.385B	$1.295B
YoY Change	4.12%	5.56%	19.46%
Total Long-Term Liabilities	$1.442B	$1.385B	$1.295B
YoY Change	4.12%	5.56%	19.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.339B	$2.231B	$2.367B
Total Long-Term Liabilities	$1.442B	$1.385B	$1.295B
Total Liabilities	$22.48B	$21.95B	$21.40B
YoY Change	2.42%	5.57%	3.04%
SHAREHOLDERS EQUITY
Retained Earnings	$10.43B	$10.19B	$10.08B
YoY Change	2.3%	-1.52%	-0.76%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$19.00M	$19.00M	$19.00M
YoY Change	0.0%	0.0%	0.0%
Treasury Stock Shares	20.32M shares	20.32M shares
Shareholders Equity	$12.41B	$12.19B	$12.13B
YoY Change
Total Liabilities & Shareholders Equity	$34.89B	$34.14B	$33.53B
YoY Change	2.21%	2.83%	0.97%

Cashflow Statement

Concept	2016 Q4	2015 Q4	2015 Q3
OPERATING ACTIVITIES
Net Income	$416.0M	$361.0M	$452.0M
YoY Change	15.24%	-29.35%	-19.14%
Depreciation, Depletion And Amortization	$260.0M	$289.0M	$276.0M
YoY Change	-10.03%	19.92%	16.46%
Cash From Operating Activities	$722.0M	$729.0M	$706.0M
YoY Change	-0.96%	28.12%	-22.33%
INVESTING ACTIVITIES
Capital Expenditures	-$583.0M	-$608.0M	-$891.0M
YoY Change	-4.11%	-17.73%	56.32%
Acquisitions
YoY Change
Other Investing Activities	$81.00M	$228.0M	$36.00M
YoY Change	-64.47%	-2633.33%	-197.3%
Cash From Investing Activities	-$502.0M	-$380.0M	-$855.0M
YoY Change	32.11%	-49.2%	40.86%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-248.0M	319.0M	-307.0M
YoY Change	-177.74%	-213.93%	-42.83%
NET CHANGE
Cash From Operating Activities	722.0M	729.0M	706.0M
Cash From Investing Activities	-502.0M	-380.0M	-855.0M
Cash From Financing Activities	-248.0M	319.0M	-307.0M
Net Change In Cash	-28.00M	668.0M	-456.0M
YoY Change	-104.19%	-245.53%	94.04%
FREE CASH FLOW
Cash From Operating Activities	$722.0M	$729.0M	$706.0M
Capital Expenditures	-$583.0M	-$608.0M	-$891.0M
Free Cash Flow	$1.305B	$1.337B	$1.597B
YoY Change	-2.39%	2.22%	7.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2016	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2016	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2016	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2016
CY2016	dei	Document Period End Date DocumentPeriodEndDate	2016-12-31
CY2016	dei	Document Type DocumentType	10-K
CY2016	dei	Entity Central Index Key EntityCentralIndexKey	0000702165
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CY2016	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2016	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2016Q2	dei	Entity Public Float EntityPublicFloat	24959609647	USD
CY2016	dei	Entity Registrant Name EntityRegistrantName	NORFOLK SOUTHERN CORP
CY2016	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2016	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
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CY2016	nsc	Amended Ltip Plan Award Granted As Other Than Option Or Stock Appreciation Right AmendedLtipPlanAwardGrantedAsOtherThanOptionOrStockAppreciationRight	1.61	shares
CY2014	nsc	Charitable Contributions CharitableContributions	9000000	USD
CY2015	nsc	Charitable Contributions CharitableContributions	9000000	USD
CY2016	nsc	Charitable Contributions CharitableContributions	9000000	USD
CY2014	nsc	Common Stock Transactions CommonStockTransactions	67000000	USD
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CY2016	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.
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CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	21000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	603000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	628000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-8942000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-9140000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	568000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	39000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9510000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9729000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	589000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	65000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	62000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	430000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	464000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	108000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	102000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	35000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	438000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	428000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9072000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9301000000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2200000000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	2200000000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	10000000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	1000000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	11000000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	1000000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	2040000000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	2073000000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	252000000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	252000000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	274000000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	286000000	USD
CY2016	us-gaap	Defined Benefit Plan Target Plan Asset Allocations Range Maximum DefinedBenefitPlanTargetPlanAssetAllocationsRangeMaximum	0.75
CY2016	us-gaap	Defined Benefit Plan Target Plan Asset Allocations Range Minimum DefinedBenefitPlanTargetPlanAssetAllocationsRangeMinimum	0.5
CY2014	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	20000000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21000000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21000000	USD
CY2014	us-gaap	Depreciation Depreciation	956000000	USD
CY2015	us-gaap	Depreciation Depreciation	1059000000	USD
CY2016	us-gaap	Depreciation Depreciation	1030000000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	687000000	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	713000000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	695000000	USD
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.44
CY2015Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.01
CY2015Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.43
CY2015Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.50
CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.21
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.13
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.37
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.43
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.66
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.39
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.41
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.49
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.20
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.10
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.36
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.55
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.42
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.62
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.362
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.363
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.354
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.007
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.011
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.014
CY2014	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.006
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.006
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.003
CY2014	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	93000000	USD
CY2015	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	29000000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	74000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	14000000	USD
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	31000000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	26000000	USD
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	7000000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	13000000	USD
CY2014	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	45000000	USD
CY2015	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	40000000	USD
CY2016	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	31000000	USD
CY2015Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2102000000	USD
CY2016Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2176000000	USD
CY2014	us-gaap	Fuel Costs FuelCosts	1574000000	USD
CY2015	us-gaap	Fuel Costs FuelCosts	934000000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	886000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1134000000	USD
CY2016	us-gaap	Fuel Costs FuelCosts	698000000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	13000000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	55000000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	9000000	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	13000000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	30000000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	46000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3134000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2442000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2582000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	914000000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1097000000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	855000000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	904000000	USD
CY2014	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-17000000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-31000000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-27000000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-36000000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	88000000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	72000000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	70000000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-20000000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-14000000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-7000000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1102000000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	386000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	593000000	USD
CY2014	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	31000000	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-109000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-23000000	USD
CY2014	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	13000000	USD
CY2015	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	35000000	USD
CY2016	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	-42000000	USD
CY2014	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	260000000	USD
CY2015	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-192000000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-82000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	116000000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-152000000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	158000000	USD
CY2014	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	19000000	USD
CY2015	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	21000000	USD
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	20000000	USD
CY2014	us-gaap	Interest Costs Incurred InterestCostsIncurred	564000000	USD
CY2015	us-gaap	Interest Costs Incurred InterestCostsIncurred	566000000	USD
CY2016	us-gaap	Interest Costs Incurred InterestCostsIncurred	583000000	USD
CY2014	us-gaap	Interest Expense InterestExpense	545000000	USD
CY2015	us-gaap	Interest Expense InterestExpense	545000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	563000000	USD
CY2014	us-gaap	Interest Expense Other InterestExpenseOther	12000000	USD
CY2015	us-gaap	Interest Expense Other InterestExpenseOther	4000000	USD
CY2016	us-gaap	Interest Expense Other InterestExpenseOther	6000000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	522000000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	518000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	543000000	USD
CY2015Q4	us-gaap	Interest Payable Current InterestPayableCurrent	123000000	USD
CY2016Q4	us-gaap	Interest Payable Current InterestPayableCurrent	119000000	USD
CY2014	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	8000000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	10000000	USD
CY2014	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2897000000	USD
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2911000000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2743000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	201000000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	195000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	171000000	USD
CY2015Q4	us-gaap	Liabilities Liabilities	21951000000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	22483000000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	34139000000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	34892000000	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2231000000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2339000000	USD
CY2014	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	24000000	USD
CY2015	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-1000000	USD
CY2016	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	20000000	USD
CY2015Q4	us-gaap	Long Term Debt LongTermDebt	9893000000	USD
CY2016Q4	us-gaap	Long Term Debt LongTermDebt	10112000000	USD
CY2015Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	9393000000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	9562000000	USD
CY2015Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	500000000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	550000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	7479000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	584000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	314000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	585000000	USD
CY2016Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	600000000	USD
CY2015Q4	us-gaap	Long Term Investments LongTermInvestments	2572000000	USD
CY2016Q4	us-gaap	Long Term Investments LongTermInvestments	2777000000	USD
CY2016	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	1300000000	USD
CY2015Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	174000000	USD
CY2016Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	192000000	USD
CY2015Q4	us-gaap	Loss Contingency Accrual Carrying Value Noncurrent LossContingencyAccrualCarryingValueNoncurrent	191000000	USD
CY2016Q4	us-gaap	Loss Contingency Accrual Carrying Value Noncurrent LossContingencyAccrualCarryingValueNoncurrent	178000000	USD
CY2015Q4	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	271000000	USD
CY2016Q4	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	257000000	USD
CY2014	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	36000000	USD
CY2015	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	32000000	USD
CY2016	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	37000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-1383000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-693000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-1347000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2002000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2087000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-1832000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	2915000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	2908000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	3034000000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1994000000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1550000000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1663000000	USD
CY2014	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1996000000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1551000000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1664000000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	8049000000	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	7627000000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	6814000000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	3575000000	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	606000000	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	814000000	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	822000000	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	642000000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	2884000000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	723000000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	770000000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	820000000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	761000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	3074000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	614000000	USD
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CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	50000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	54000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	56000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	71000000	USD
CY2016Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	305000000	USD
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CY2015	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	84000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	73000000	USD
CY2014	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	109000000	USD
CY2015	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	111000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	98000000	USD
CY2015Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	98000000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	94000000	USD
CY2015Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	132000000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	193000000	USD
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CY2015Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	63000000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	73000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-72000000	USD
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CY2014	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-23000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-76000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-69000000	USD
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CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-47000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-42000000	USD
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CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	74000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-6000000	USD
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CY2016	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-27000000	USD
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CY2016	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	799000000	USD
CY2015Q4	us-gaap	Other Investments OtherInvestments	162000000	USD
CY2016Q4	us-gaap	Other Investments OtherInvestments	186000000	USD
CY2015Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	237000000	USD
CY2016Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	229000000	USD
CY2015Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1385000000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1442000000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	104000000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	103000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	71000000	USD
CY2014	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-134000000	USD
CY2015	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-111000000	USD
CY2016	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-150000000	USD
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CY2015	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	6000000	USD
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CY2015	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	80000000	USD
CY2016	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	93000000	USD
CY2016	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	5000000	USD
CY2014	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	4000000	USD
CY2015	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	5000000	USD
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CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1075000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	803000000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	687000000	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	713000000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	695000000	USD
CY2014	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	104000000	USD
CY2015	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	5000000	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	123000000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2118000000	USD
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CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1887000000	USD
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CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	63000000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	130000000	USD
CY2014	us-gaap	Professional Fees ProfessionalFees	0	USD
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CY2016	us-gaap	Professional Fees ProfessionalFees	20000000	USD
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CY2015Q4	us-gaap	Revenues Revenues	2518000000	USD
CY2015	us-gaap	Revenues Revenues	10511000000	USD
CY2016Q1	us-gaap	Revenues Revenues	2420000000	USD
CY2016Q2	us-gaap	Revenues Revenues	2454000000	USD
CY2016Q3	us-gaap	Revenues Revenues	2524000000	USD
CY2016Q4	us-gaap	Revenues Revenues	2490000000	USD
CY2016	us-gaap	Revenues Revenues	9888000000	USD
CY2014	us-gaap	Royalty Revenue From Coal RoyaltyRevenueFromCoal	33000000	USD
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CY2016	us-gaap	Royalty Revenue From Coal RoyaltyRevenueFromCoal	10000000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0000
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CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0279
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0183
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0200
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CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.25
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.27
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3195174	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	65.50
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	106000000	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	27000000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	60000000	USD
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CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	82.74
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	996610	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	197000000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6048736	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5554054	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	67.90
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	72.57
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	51.65
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	70.38
CY2016Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	136000000	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y
CY2016	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P4Y4M24D
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	589081	shares
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2015Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	200000000	USD
CY2016Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	100000000	USD
CY2014	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2009461	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1466721	shares
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	144000000	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	62000000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	95000000	USD
CY2012Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	50000000	shares
CY2016Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	14700000	shares
CY2014	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	3100000	shares
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CY2014	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	318000000	USD
CY2015	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1100000000	USD
CY2015	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1075000000	USD
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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
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12188000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12409000000	USD
CY2014	us-gaap	Stockholders Equity Other StockholdersEquityOther	3000000	USD
CY2015	us-gaap	Stockholders Equity Other StockholdersEquityOther	3000000	USD
CY2016	us-gaap	Stockholders Equity Other StockholdersEquityOther	2000000	USD
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CY2015Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	190000000	USD
CY2016Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Fair Value SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesFairValue	211000000	USD
CY2014	us-gaap	Taxes Other TaxesOther	9000000	USD
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CY2015Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20320777	shares
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20320777	shares
CY2015Q4	us-gaap	Treasury Stock Value TreasuryStockValue	19000000	USD
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	19000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	61000000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27000000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	34000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	19000000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1000000	USD
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CY2015	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	2000000	USD
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CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2500000	shares
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CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	309400000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	301900000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	293900000	shares
CY2016	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. 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
0000702165-17-000018-index-headers.html	Edgar Link	pending
0000702165-17-000018-index.html	Edgar Link	pending
0000702165-17-000018.txt	Edgar Link	pending
0000702165-17-000018-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
nsc-20161231.xml	Edgar Link	completed
nsc-20161231.xsd	Edgar Link	pending
nsc-20161231_cal.xml	Edgar Link	unprocessable
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$NSC
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2016 Q4 Form 10-K Financial Statement

#000070216517000018 Filed on February 06, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$NSC NORFOLK SOUTHERN CORP Stock $nsc

2016 Q4 Form 10-K Financial Statement

#000070216517000018 Filed on February 06, 2017

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSC
NORFOLK SOUTHERN CORP Stock $nsc