$X
UNITED STATES STEEL CORP Stock $x

$x Overview Financials Valuation SEC Filings Company Website

2019 Q1 Form 10-K Financial Statement

#000116330219000014 Filed on February 15, 2019

Income Statement

Concept	2019 Q1	2017 Q4	2017
Revenue	$3.499B	$3.133B	$11.05B
YoY Change	24.03%	18.23%	22.12%
Cost Of Revenue	$3.172B	$2.748B	$10.86B
YoY Change	12.96%	13.79%	13.01%
Gross Profit	$327.0M	$385.0M	$188.0M
YoY Change	2415.38%	63.83%	-133.39%
Gross Profit Margin	9.35%	12.29%	1.7%
Selling, General & Admin	$78.00M	$97.00M	$320.0M
YoY Change	0.0%	-3.0%	4.58%
% of Gross Profit	23.85%	25.19%	170.21%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$143.0M	$125.0M	$501.0M
YoY Change	11.72%	1.63%	-1.18%
% of Gross Profit	43.73%	32.47%	266.49%
Operating Expenses	$78.00M	$221.0M	$320.0M
YoY Change	0.0%	-0.45%	4.58%
Operating Profit	$111.0M	$164.0M	$669.0M
YoY Change	-18.98%	1161.54%	-432.84%
Interest Expense	$34.00M	-$33.00M	$226.0M
YoY Change	-32.0%	-37.74%	-1.74%
% of Operating Profit	30.63%	-20.12%	33.78%
Other Income/Expense, Net	$3.000M	-$41.00M	-$44.00M
YoY Change	-130.0%	-177.36%	1000.0%
Pretax Income	$62.00M	$70.00M	$301.0M
YoY Change	226.32%	-165.42%	-172.36%
Income Tax	$8.000M	-$8.000M	-$86.00M
% Of Pretax Income	12.9%	-11.43%	-28.57%
Net Earnings	$54.00M	$159.0M	$387.0M
YoY Change	200.0%	-251.43%	-187.95%
Net Earnings / Revenue	1.54%	5.08%	3.5%
Basic Earnings Per Share	$0.31		$2.21
Diluted Earnings Per Share	$0.31	$897.8K	$2.19
COMMON SHARES
Basic Shares Outstanding	173.2M shares	175.0M shares
Diluted Shares Outstanding	174.5M shares		176.5M shares

Balance Sheet

Concept	2019 Q1	2017 Q4	2017
SHORT-TERM ASSETS
Cash & Short-Term Investments	$676.0M	$1.553B	$1.553B
YoY Change	-50.73%	2.51%	2.51%
Cash & Equivalents	$676.0M	$1.553B	$1.553B
Short-Term Investments
Other Short-Term Assets	$92.00M	$85.00M	$85.00M
YoY Change	35.29%	325.0%	193.1%
Inventory	$2.133B	$1.738B	$1.738B
Prepaid Expenses
Receivables	$1.710B	$1.379B	$1.379B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.630B	$4.755B	$4.755B
YoY Change	-4.14%	9.16%	9.16%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.989B	$4.280B	$4.280B
YoY Change	14.51%	7.56%	7.56%
Goodwill
YoY Change
Intangibles	$156.0M	$167.0M
YoY Change	-5.45%	-4.57%
Long-Term Investments	$535.0M	$457.0M	$460.0M
YoY Change	8.96%	-8.42%	-8.55%
Other Assets	$181.0M	$124.0M	$180.0M
YoY Change	42.52%	6.9%	47.54%
Total Long-Term Assets	$6.522B	$5.107B	$5.107B
YoY Change	25.52%	6.31%	6.31%
TOTAL ASSETS
Total Short-Term Assets	$4.630B	$4.755B	$4.755B
Total Long-Term Assets	$6.522B	$5.107B	$5.107B
Total Assets	$11.15B	$9.862B	$9.862B
YoY Change	11.23%	7.66%	7.66%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$118.0M	$63.00M	$63.00M
YoY Change	66.2%	-4.55%	-4.55%
Accrued Expenses	$412.0M	$416.0M	$416.0M
YoY Change	10.46%	-14.23%	-14.23%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$66.00M	$3.000M	$3.000M
YoY Change	-76.51%	-94.0%	-94.0%
Total Short-Term Liabilities	$3.140B	$2.773B	$2.721B
YoY Change	6.12%	18.96%	16.73%
LONG-TERM LIABILITIES
Long-Term Debt	$2.326B	$2.700B	$2.700B
YoY Change	-9.53%	-9.43%	-9.43%
Other Long-Term Liabilities	$299.0M	$303.0M	$1.114B
YoY Change	-7.43%	-7.9%	-27.9%
Total Long-Term Liabilities	$299.0M	$303.0M	$3.814B
YoY Change	-7.43%	-7.9%	-15.73%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.140B	$2.773B	$2.721B
Total Long-Term Liabilities	$299.0M	$303.0M	$3.814B
Total Liabilities	$6.916B	$6.541B	$6.542B
YoY Change	4.99%	-5.0%	-5.0%
SHAREHOLDERS EQUITY
Retained Earnings	$1.255B	$133.0M
YoY Change	783.8%	-153.2%
Common Stock	$178.0M	$176.0M
YoY Change	0.56%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$126.0M	$76.00M
YoY Change	12500.0%	-58.24%
Treasury Stock Shares	5.186M shares	1.203M shares
Shareholders Equity	$4.235B	$3.320B	$3.320B
YoY Change
Total Liabilities & Shareholders Equity	$11.15B	$9.862B	$9.862B
YoY Change	11.23%	7.66%	7.66%

Cashflow Statement

Concept	2019 Q1	2017 Q4	2017
OPERATING ACTIVITIES
Net Income	$54.00M	$159.0M	$387.0M
YoY Change	200.0%	-251.43%	-187.95%
Depreciation, Depletion And Amortization	$143.0M	$125.0M	$501.0M
YoY Change	11.72%	1.63%	-1.18%
Cash From Operating Activities	$29.00M	$280.0M	$826.0M
YoY Change	-129.29%	58.19%	9.55%
INVESTING ACTIVITIES
Capital Expenditures	$302.0M	-$214.0M	$505.0M
YoY Change	45.19%	463.16%	65.03%
Acquisitions
YoY Change
Other Investing Activities		$17.00M	$119.0M
YoY Change		240.0%	-1422.22%
Cash From Investing Activities	-$302.0M	-$197.0M	-$386.0M
YoY Change	45.19%	496.97%	22.54%
FINANCING ACTIVITIES
Cash Dividend Paid	$9.000M		$35.00M
YoY Change	0.0%		12.9%
Common Stock Issuance & Retirement, Net	$42.00M		$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net	$0.00		$1.127B
YoY Change	-100.0%		3.11%
Cash From Financing Activities	-$56.00M	-224.0M	-$415.0M
YoY Change	-147.86%	300.0%	-225.0%
NET CHANGE
Cash From Operating Activities	$29.00M	280.0M	$826.0M
Cash From Investing Activities	-$302.0M	-197.0M	-$386.0M
Cash From Financing Activities	-$56.00M	-224.0M	-$415.0M
Net Change In Cash	-$331.0M	-141.0M	$42.00M
YoY Change	83.89%	-260.23%	-94.5%
FREE CASH FLOW
Cash From Operating Activities	$29.00M	$280.0M	$826.0M
Capital Expenditures	$302.0M	-$214.0M	$505.0M
Free Cash Flow	-$273.0M	$494.0M	$321.0M
YoY Change	-11.07%	129.77%	-28.35%

Facts In Submission

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CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	5454000000	USD
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CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	642000000	USD
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CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies Foreign IncomeTaxReconciliationTaxContingenciesForeign	-21000000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	39000000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	56000000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	71000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	40000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	39000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	287000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	225000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	282000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	182000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	36000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	312000000	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-10000000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	52000000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	8000000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-491000000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	117000000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	374000000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-60000000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-33000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	46000000	USD
CY2016	us-gaap	Increase Decrease In Outstanding Checks Operating Activities IncreaseDecreaseInOutstandingChecksOperatingActivities	0	USD
CY2017	us-gaap	Increase Decrease In Outstanding Checks Operating Activities IncreaseDecreaseInOutstandingChecksOperatingActivities	-2000000	USD
CY2018	us-gaap	Increase Decrease In Outstanding Checks Operating Activities IncreaseDecreaseInOutstandingChecksOperatingActivities	1000000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1727000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1828000	shares
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	167000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	158000000	USD
CY2016	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	4000000	USD
CY2017	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3000000	USD
CY2018	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	7000000	USD
CY2016	us-gaap	Interest Costs Incurred InterestCostsIncurred	234000000	USD
CY2017	us-gaap	Interest Costs Incurred InterestCostsIncurred	229000000	USD
CY2018	us-gaap	Interest Costs Incurred InterestCostsIncurred	175000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	230000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	226000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	168000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	193000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	242000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	207000000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	69000000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	39000000	USD
CY2017Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	356000000	USD
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	404000000	USD
CY2017Q4	us-gaap	Inventory Land Held For Development And Sale InventoryLandHeldForDevelopmentAndSale	42000000	USD
CY2018Q4	us-gaap	Inventory Land Held For Development And Sale InventoryLandHeldForDevelopmentAndSale	39000000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	1738000000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	2092000000	USD
CY2017Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	527000000	USD
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	605000000	USD
CY2017Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	796000000	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1021000000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	5000000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	17000000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	23000000	USD
CY2017Q4	us-gaap	Land Land	208000000	USD
CY2018Q4	us-gaap	Land Land	207000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	123000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	124000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	133000000	USD
CY2018Q4	us-gaap	Leveraged Leases Net Investment In Leveraged Leases Disclosure Residual Value Of Leased Assets LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureResidualValueOfLeasedAssets	17000000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	6541000000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	6779000000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9862000000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10982000000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2773000000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3197000000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	2407000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2700000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2316000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2095000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	65000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	229000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	10000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	4000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	4000000	USD
CY2018Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	62000000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	303000000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	272000000	USD
CY2017Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	3000000	USD
CY2018Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	4000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4000000	USD
CY2017Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	480000000	USD
CY2018Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	513000000	USD
CY2018	us-gaap	Loss Contingency Claims Dismissed Number LossContingencyClaimsDismissedNumber	1000
CY2017Q4	us-gaap	Minority Interest MinorityInterest	1000000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	332000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-415000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-515000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-315000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-386000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-963000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	754000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	826000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	938000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-440000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	387000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1115000000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2016Q4	us-gaap	Noncurrent Assets NoncurrentAssets	4478000000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	4737000000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5351000000	USD
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segment
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	-201000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	669000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	1124000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	303000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	66000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	28000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	37000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	45000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	55000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	72000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	8000000	USD
CY2017	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	10000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	19000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	115000000	USD
CY2017	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	114000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	114000000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	85000000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	79000000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	124000000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	171000000	USD
CY2016	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	2000000	USD
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	1000000	USD
CY2018	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-14000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	834000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-19000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-38000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
CY2016	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	2000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	189000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-60000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-328000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	652000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-181000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	292000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-462000000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	6000000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	3000000	USD
CY2016	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	15000000	USD
CY2017	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	0	USD
CY2018	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	0	USD
CY2016	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	21000000	USD
CY2017	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	2000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	107000000	USD
CY2017	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	652000000	USD
CY2018	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	-181000000	USD
CY2017Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	59000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-44000000	USD
CY2018	us-gaap	Payments For Proceeds From Investments PaymentsForProceedsFromInvestments	2000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	75000000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	31000000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	35000000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	36000000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4000000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10000000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8000000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	306000000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	505000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1001000000	USD
CY2017Q4	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent	759000000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent	980000000	USD
CY2017Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.75
CY2018Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.74
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	482000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	958000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	737000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	640000000	USD
CY2016	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2017	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	116000000	USD
CY2018	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	30000000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	12000000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	5000000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	10000000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	35000000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	20000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	35000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-440000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	387000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	1115000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	15086000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	16008000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3979000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4280000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4865000000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1000000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4000000	USD
CY2017Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1173000000	USD
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	1435000000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	191000000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	162000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1093000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1127000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1299000000	USD
CY2017Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	44000000	USD
CY2018Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	40000000	USD
CY2016Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2017Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	6000000	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	3000000	USD
CY2016Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	40000000	USD
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	38000000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	37000000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	122000000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	31000000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2016	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	122000000	USD
CY2017	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	31000000	USD
CY2018	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	0	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	74000000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	38000000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	17000000	USD
CY2016	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	-26000000	USD
CY2017	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	-6000000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	133000000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1212000000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	10261000000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12250000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	14178000000	USD
CY2016	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1216000000	USD
CY2017	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1204000000	USD
CY2018	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1420000000	USD
CY2016	us-gaap	Revenues Revenues	9045000000	USD
CY2017	us-gaap	Revenues Revenues	11046000000	USD
CY2018	us-gaap	Revenues Revenues	12758000000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	306000000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	320000000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	336000000	USD
CY2016	us-gaap	Severance Costs1 SeveranceCosts1	24000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	112864	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	28.99
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	11000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1150895	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	41.65
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1704277	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2107957	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	21.08
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	30.92
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	581794	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	17000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	14000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	24.20
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.53
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.57
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.015
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.020
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2174000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	28.10
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	13000000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	11000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	27000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	72.15
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	324431	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1333210	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	647780	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.24
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	17.28
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2000000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4612940	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2746520	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	28.92
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	27.73
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	2000000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	2640308	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	27.76
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.65
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	14.78
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	36.94
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1000000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y3M25D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y0M10D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P4Y11M1D
CY2016	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1000000	USD
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-1000000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-56000000	USD
CY2016	us-gaap	Stock Issued1 StockIssued1	32000000	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	49000000	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	21000000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1541989	shares
CY2016	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	100000000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	0	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	0	USD
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	300000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3320000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	4202000000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	132000000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	118000000	USD
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1203344	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2857578	shares
CY2018Q4	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2760112	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	76000000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	78000000	USD
CY2018Q4	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	75000000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	74000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	72000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	42000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	26000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	4000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	6000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	2000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	6000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	296000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	842000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	310000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	484000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	310000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	2824000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	582000000	USD
CY2016	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	457000000	USD
CY2017	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	576000000	USD
CY2018	us-gaap	Unrecorded Unconditional Purchase Obligation Purchases UnrecordedUnconditionalPurchaseObligationPurchases	600000000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156673000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	176520000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	178461000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	156673000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	174793000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	176633000	shares
CY2018Q4	x	Accrued Liabilities Administrative And Legal Costs AccruedLiabilitiesAdministrativeAndLegalCosts	10000000	USD
CY2017Q4	x	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax	958000000	USD
CY2018Q4	x	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax	991000000	USD
CY2017	x	Asset Retirement Obligation Accretion Expense Accrued AssetRetirementObligationAccretionExpenseAccrued	2000000	USD
CY2018	x	Asset Retirement Obligation Accretion Expense Accrued AssetRetirementObligationAccretionExpenseAccrued	3000000	USD
CY2016	x	Change In Accrued Capital Expenditures ChangeInAccruedCapitalExpenditures	-110000000	USD
CY2017	x	Change In Accrued Capital Expenditures ChangeInAccruedCapitalExpenditures	208000000	USD
CY2018	x	Change In Accrued Capital Expenditures ChangeInAccruedCapitalExpenditures	135000000	USD
CY2018Q3	x	Collective Bargaining Agreement Number Of Employees Covered CollectiveBargainingAgreementNumberOfEmployeesCovered	14000	Employee
CY2018Q4	x	Collective Bargaining Agreement Term CollectiveBargainingAgreementTerm	P4Y
CY2017Q4	x	Construction In Process ConstructionInProcess	576000000	USD
CY2018Q4	x	Construction In Process ConstructionInProcess	706000000	USD
CY2018Q4	x	Contractual Property Plant And Equipment Commitments ContractualPropertyPlantAndEquipmentCommitments	601000000	USD
CY2018	x	Costof Emissions Allowances Purchased CostofEmissionsAllowancesPurchased	118000000
CY2018	x	Costof Emissions Allowances Purchased CostofEmissionsAllowancesPurchased	135000000	USD
CY2018	x	Defined Benefit Plan Effect Of One Percentage Point Decrease In Discount Rate On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointDecreaseInDiscountRateOnAccumulatedPostretirementBenefitObligation	770000000	USD
CY2018	x	Defined Benefit Plan Effect Of One Percentage Point Decrease In Discount Rate On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointDecreaseInDiscountRateOnServiceAndInterestCostComponents	8000000	USD
CY2018	x	Defined Benefit Plan Effect Of One Percentage Point Decrease In Return On Plan Assets On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointDecreaseInReturnOnPlanAssetsOnServiceAndInterestCostComponents	69000000	USD
CY2018	x	Defined Benefit Plan Effect Of One Percentage Point Increase In Discount Rate On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseInDiscountRateOnAccumulatedPostretirementBenefitObligation	-650000000	USD
CY2018	x	Defined Benefit Plan Effect Of One Percentage Point Increase In Discount Rate On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseInDiscountRateOnServiceAndInterestCostComponents	-18000000	USD
CY2018	x	Defined Benefit Plan Effect Of One Percentage Point Increase In Return On Plan Assets On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseInReturnOnPlanAssetsOnServiceAndInterestCostComponents	-69000000	USD
CY2016	x	Defined Contribution Plan Eligible Amount Contributed Per Hour DefinedContributionPlanEligibleAmountContributedPerHour	0.50	USD
CY2016	x	Effective Income Tax Rate Reconciliation Effectof Tax Reform Amount EffectiveIncomeTaxRateReconciliationEffectofTaxReformAmount	0	USD
CY2017	x	Effective Income Tax Rate Reconciliation Effectof Tax Reform Amount EffectiveIncomeTaxRateReconciliationEffectofTaxReformAmount	-81000000	USD
CY2018	x	Effective Income Tax Rate Reconciliation Effectof Tax Reform Amount EffectiveIncomeTaxRateReconciliationEffectofTaxReformAmount	0	USD
CY2018	x	Effective Income Tax Rate Reconciliation Partial Reversal Of Deferred Tax Assets Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationPartialReversalOfDeferredTaxAssetsValuationAllowanceAmount	374000000	USD
CY2017	x	Effective Tax Rate Reconciliation Reveralof Valulation Allowance Relatedto Amt Credits EffectiveTaxRateReconciliationReveralofValulationAllowanceRelatedtoAMTCredits	71000000	USD
CY2018Q4	x	Emissions Allowances Purchased EmissionsAllowancesPurchased	11000000	Allowances
CY2016	x	Employee Benefits Costs Payments EmployeeBenefitsCostsPayments	62000000	USD
CY2017	x	Employee Benefits Costs Payments EmployeeBenefitsCostsPayments	16000000	USD
CY2018	x	Employee Benefits Costs Payments EmployeeBenefitsCostsPayments	-77000000	USD
CY2018	x	Estimated Shortfallin Emissions Allowances EstimatedShortfallinEmissionsAllowances	15000000	Allowances
CY2018	x	Final Allocationfor Emissions Allowances FinalAllocationforEmissionsAllowances	48000000	Allowances
CY2016	x	Financial Costs Other FinancialCostsOther	0	USD
CY2017	x	Financial Costs Other FinancialCostsOther	2000000	USD
CY2018	x	Financial Costs Other FinancialCostsOther	3000000	USD
CY2016	x	Financial Costsfor Credit Facilities FinancialCostsforCreditFacilities	3000000	USD
CY2017	x	Financial Costsfor Credit Facilities FinancialCostsforCreditFacilities	3000000	USD
CY2018	x	Financial Costsfor Credit Facilities FinancialCostsforCreditFacilities	3000000	USD
CY2016	x	Gainon Equity Investees Transactions GainonEquityInvesteesTransactions	0	USD
CY2017	x	Gainon Equity Investees Transactions GainonEquityInvesteesTransactions	2000000	USD
CY2018	x	Gainon Equity Investees Transactions GainonEquityInvesteesTransactions	38000000	USD
CY2018	x	Income Tax Expense Benefit Reversal Of Valuation Allowance For Current Year Activity IncomeTaxExpenseBenefitReversalOfValuationAllowanceForCurrentYearActivity	-38000000	USD
CY2017Q4	x	Information Technology Assets Gross InformationTechnologyAssetsGross	782000000	USD
CY2018Q4	x	Information Technology Assets Gross InformationTechnologyAssetsGross	786000000	USD
CY2016	x	Interest Income Expense And Other Financial Costs Net InterestIncomeExpenseAndOtherFinancialCostsNet	-215000000	USD
CY2017	x	Interest Income Expense And Other Financial Costs Net InterestIncomeExpenseAndOtherFinancialCostsNet	-368000000	USD
CY2018	x	Interest Income Expense And Other Financial Costs Net InterestIncomeExpenseAndOtherFinancialCostsNet	-312000000	USD
CY2018	x	Labor Agreement Wage Adjustment Per Hour LaborAgreementWageAdjustmentPerHour	2.65	USD
CY2018Q4	x	Labor Agreements Gross Payments LaborAgreementsGrossPayments	81000000	USD
CY2018Q3	x	Labor Agreements Wage Adjustments LaborAgreementsWageAdjustments	0.04
CY2018Q4	x	Leveragedleases Net Investmentin Leveraged Leases Residual Value Liability Recorded LeveragedleasesNetInvestmentinLeveragedLeasesResidualValueLiabilityRecorded	0	USD
CY2018Q4	x	Numberof Commercial Entities NumberofCommercialEntities	3	Segment
CY2018	x	Numberofyearsofprojectedadministrativeandlegalcostsincludedinaccrual Numberofyearsofprojectedadministrativeandlegalcostsincludedinaccrual	P3Y
CY2017Q4	x	Other Machineryand Equipment Gross OtherMachineryandEquipmentGross	122000000	USD
CY2018Q4	x	Other Machineryand Equipment Gross OtherMachineryandEquipmentGross	123000000	USD
CY2017	x	Other Postemployment Benefits Net Periodic Benefit Cost OtherPostemploymentBenefitsNetPeriodicBenefitCost	22000000	USD
CY2018	x	Other Postemployment Benefits Net Periodic Benefit Cost OtherPostemploymentBenefitsNetPeriodicBenefitCost	10000000	USD
CY2018Q4	x	Other Postemployment Plans Future Projected Benefit Cost OtherPostemploymentPlansFutureProjectedBenefitCost	14000000	USD
CY2017	x	Paymentsand Utilizationfor Restructuring PaymentsandUtilizationforRestructuring	67000000	USD
CY2018	x	Paymentsand Utilizationfor Restructuring PaymentsandUtilizationforRestructuring	21000000	USD
CY2018	x	Pension Corridor Percentage PensionCorridorPercentage	0.10
CY2018	x	Portion Of Employees Included In Multiemployer Plan PortionOfEmployeesIncludedInMultiemployerPlan	three-quarters
CY2018	x	Portionof Costsfor Retiree Health Benefits Limitedtoa Per Capital Dollar Maximum PortionofCostsforRetireeHealthBenefitsLimitedtoaPerCapitalDollarMaximum	three quarters
CY2018	x	Portionof Represented Employees Coveredby Spt PortionofRepresentedEmployeesCoveredbySPT	two-thirds
CY2018	x	Portionof Salaried Employeesthat Receive Pension Benefits Througha Defined Contribution Pension Plan PortionofSalariedEmployeesthatReceivePensionBenefitsThroughaDefinedContributionPensionPlan	three-quarters
CY2017Q4	x	Postemployment Benefit Plan Assumption Used Calculating Benefit Obligation Discount Rate PostemploymentBenefitPlanAssumptionUsedCalculatingBenefitObligationDiscountRate	0.0357
CY2018Q4	x	Postemployment Benefit Plan Assumption Used Calculating Benefit Obligation Discount Rate PostemploymentBenefitPlanAssumptionUsedCalculatingBenefitObligationDiscountRate	0.0436
CY2016	x	Proceeds From Issuance Of Revolving Credit Facilities ProceedsFromIssuanceOfRevolvingCreditFacilities	0	USD
CY2017	x	Proceeds From Issuance Of Revolving Credit Facilities ProceedsFromIssuanceOfRevolvingCreditFacilities	0	USD
CY2018	x	Proceeds From Issuance Of Revolving Credit Facilities ProceedsFromIssuanceOfRevolvingCreditFacilities	228000000	USD
CY2017	x	Reclassificationfrom Accumulated Other Comprehensive Income Current Period Netof Tax Saleof Ownership Interestin Equity Method Investee ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetofTaxSaleofOwnershipInterestinEquityMethodInvestee	-9000000	USD
CY2017	x	Restructuring Reserve Gross Restructuring Charges Before Adjustments RestructuringReserveGrossRestructuringChargesBeforeAdjustments	37000000	USD
CY2018	x	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustments In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsInPeriodWeightedAverageGrantDateFairValue	24.95
CY2018	x	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Market And Or Performance Conditions Adjustments In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMarketAndOrPerformanceConditionsAdjustmentsInPeriod	52557	shares
CY2018	x	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Percentage Adjustments In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageAdjustmentsInPeriod	1
CY2016	x	Share Based Compensation Arrangement By Share Based Payment Award Grant Date Price ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDatePrice	14.78
CY2017	x	Share Based Compensation Arrangement By Share Based Payment Award Grant Date Price ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDatePrice	36.94
CY2016	x	Share Based Compensation Expense Per Share Basic ShareBasedCompensationExpensePerShareBasic	0.14
CY2017	x	Share Based Compensation Expense Per Share Basic ShareBasedCompensationExpensePerShareBasic	0.15
CY2018	x	Share Based Compensation Expense Per Share Basic ShareBasedCompensationExpensePerShareBasic	0.14
CY2016	x	Share Based Compensation Expense Per Share Diluted ShareBasedCompensationExpensePerShareDiluted	0.14
CY2017	x	Share Based Compensation Expense Per Share Diluted ShareBasedCompensationExpensePerShareDiluted	0.15
CY2018	x	Share Based Compensation Expense Per Share Diluted ShareBasedCompensationExpensePerShareDiluted	0.13
CY2017Q4	x	Steel Producing Equipment Gross SteelProducingEquipmentGross	12014000000	USD
CY2018Q4	x	Steel Producing Equipment Gross SteelProducingEquipmentGross	12784000000	USD
CY2017Q4	x	Transportation Equipment Gross TransportationEquipmentGross	239000000	USD
CY2018Q4	x	Transportation Equipment Gross TransportationEquipmentGross	268000000	USD
CY2018	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-weight:bold;">New Accounting Standards</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;padding-left:42px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2018-15, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Intangibles - Goodwill and Other - Internal Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract</font><font style="font-family:Arial;font-size:10pt;"> (ASU 2018-15). ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing internal-use software. ASU 2018-15 is effective for annual and interim reporting periods beginning after December 15, 2019, with early adoption permitted. U. S. Steel is currently assessing the impact of the ASU but does not believe this ASU will have a material impact on its overall Consolidated Financial Statements. </font></div><div style="line-height:120%;padding-top:12px;text-align:justify;padding-left:42px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">In August 2018, the FASB issued ASU 2018-14, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20), Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans</font><font style="font-family:Arial;font-size:10pt;"> (ASU 2018-14). ASU 2018-14 removes certain disclosures that the FASB no longer considers cost beneficial, adds certain disclosure requirements and clarifies others. ASU 2018-14 is effective for public companies for fiscal years beginning after December 15, 2020, with early adoption permitted. U. S. Steel is currently assessing the impact of the ASU on its defined benefit plan disclosures. </font></div><div style="line-height:120%;text-align:justify;padding-left:42px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;padding-left:42px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">In June 2016, the FASB issued ASU 2016-13, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments</font><font style="font-family:Arial;font-size:10pt;"> (ASU 2016-13), which adds an impairment model that is based on expected losses rather than incurred losses. Under ASU 2016-13, an entity recognizes as an allowance its estimate of expected credit losses, which the FASB believes will result in more timely recognition of such losses. ASU 2016-13 is effective for public companies for fiscal years beginning after December 15, 2019 including interim reporting periods, with early adoption permitted. U. S. Steel is currently assessing the impact of the ASU, but does not believe this ASU will have a material impact on its overall Consolidated Financial Statements. </font></div><div style="line-height:120%;padding-top:12px;text-align:justify;padding-left:42px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">In February 2016, the FASB issued ASU 2016-02, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Leases</font><font style="font-family:Arial;font-size:10pt;"> (ASU 2016-02). ASU 2016-02 supersedes prior lease accounting guidance. Under ASU 2016-02, for operating leases, a lessee should recognize in its statement of financial position a liability to make lease payments and a right-of-use asset representing its right to use the underlying asset for the lease term; recognize a single lease cost, which is allocated over the lease term, generally on a straight line basis, and classify all cash payments within operating activities in the statement of cash flows. For financing leases, a lessee is required to recognize a right-of-use asset and a lease liability; recognize interest on the lease liability separately from amortization of the right-of-use asset, and classify repayments of the principal portion of the lease liability within financing activities and payments of interest on the lease liability within operating activities in the statement of cash flows. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election not to recognize lease assets and lease liabilities. In addition, at the inception of a contract, an entity should determine whether the contract is or contains a lease. ASU 2016-02 is effective for public entities for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. In July 2018, the FASB issued ASU 2018-11, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Leases (Topic 842) - Targeted Improvements</font><font style="font-family:Arial;font-size:10pt;"> (ASU 2018-11), which provides an option to use a modified retrospective transition method at the adoption date. U. S. Steel will adopt the new lease accounting standard at the adoption date using the optional modified retrospective transition method outlined in ASU 2018-11. We anticipate that the impact of adoption will result in an insignificant cumulative effect of adoption and the recognition of a right of use asset and total operating lease liability in the range of </font><font style="font-family:Arial;font-size:10pt;">$230 million</font><font style="font-family:Arial;font-size:10pt;"> to </font><font style="font-family:Arial;font-size:10pt;">$250 million</font><font style="font-family:Arial;font-size:10pt;">.</font></div></div>
CY2018	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications and Adjustments</font></div><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">Certain reclassifications of prior years' data have been made to conform to the current year presentation including the following:</font></div><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">U. S. Steel reclassified certain prior year data as a result of the retrospective adoption on January 1, 2018 of ASU 2016-18, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Statement of Cash Flows (Topic 230): Restricted Cash, </font><font style="font-family:Arial;font-size:10pt;">ASU 2016-15, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments </font><font style="font-family:Arial;font-size:10pt;">and</font><font style="font-family:Arial;font-size:10pt;font-style:italic;"> </font><font style="font-family:Arial;font-size:10pt;">ASU 2017-07, </font><font style="font-family:Arial;font-size:10pt;font-style:italic;">Compensation - Retirement Benefits</font><font style="font-family:Arial;font-size:10pt;">. See Note 3 for further details. </font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-style:italic;font-weight:bold;">Use of estimates</font></div><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;">Generally accepted accounting principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at year-end and the reported amounts of revenues and expenses during the year. Significant items subject to such estimates and assumptions include the carrying value of property, plant and equipment; intangible assets; valuation allowances for receivables, inventories and deferred income tax assets and liabilities; environmental liabilities; liabilities for potential tax deficiencies; potential litigation claims and settlements; and assets and obligations related to employee benefits. Actual results could differ materially from the estimates and assumptions used.</font></div></div>

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2019 Q1 Form 10-K Financial Statement

#000116330219000014 Filed on February 15, 2019

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$X UNITED STATES STEEL CORP Stock $x

2019 Q1 Form 10-K Financial Statement

#000116330219000014 Filed on February 15, 2019

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UNITED STATES STEEL CORP Stock $x