$WMB
WILLIAMS COMPANIES, INC. Stock $wmb

$wmb Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000010726319000007 Filed on February 21, 2019

Income Statement

Concept	2017 Q4	2016 Q4	2016
Revenue	$2.228B	$2.198B	$7.499B
YoY Change	1.36%	9.57%	1.89%
Cost Of Revenue	$680.0M	$545.0M	$1.725B
YoY Change	24.77%	37.28%	-3.04%
Gross Profit	$1.548B	$1.653B	$5.774B
YoY Change	-6.35%	2.73%	3.46%
Gross Profit Margin	69.48%	75.2%	77.0%
Selling, General & Admin	$552.0M	$568.0M	$722.0M
YoY Change	-2.82%	-8.68%	-1.9%
% of Gross Profit	35.66%	34.36%	12.5%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$428.0M	$437.0M	$1.763B
YoY Change	-2.06%	-3.1%	1.44%
% of Gross Profit	27.65%	26.44%	30.53%
Operating Expenses	$1.017B	$1.010B	$722.0M
YoY Change	0.69%	-19.84%	-1.9%
Operating Profit	$531.0M	$643.0M	$689.0M
YoY Change	-17.42%	84.24%	203.52%
Interest Expense	-$174.0M	-$199.0M	$1.179B
YoY Change	-12.56%	17.75%	12.93%
% of Operating Profit	-32.77%	-30.95%	171.12%
Other Income/Expense, Net	-$149.0M	$22.00M	$85.00M
YoY Change	-777.27%	-31.25%	-15.84%
Pretax Income	-$478.0M	$86.00M	-$375.0M
YoY Change	-655.81%	-104.82%	-78.11%
Income Tax	-$168.0M	$49.00M	-$25.00M
% Of Pretax Income		56.98%
Net Earnings	$1.687B	-$15.00M	-$424.0M
YoY Change	-11346.67%	-97.9%	-25.74%
Net Earnings / Revenue	75.72%	-0.68%	-5.65%
Basic Earnings Per Share			-$0.57
Diluted Earnings Per Share	$2.034M	-$19.97K	-$0.57
COMMON SHARES
Basic Shares Outstanding	826.7M shares	750.8M shares	750.7M shares
Diluted Shares Outstanding			750.7M shares

Balance Sheet

Concept	2017 Q4	2016 Q4	2016
SHORT-TERM ASSETS
Cash & Short-Term Investments	$899.0M	$170.0M	$170.0M
YoY Change	428.82%	70.0%	70.0%
Cash & Equivalents	$899.0M	$170.0M	$170.0M
Short-Term Investments
Other Short-Term Assets	$191.0M	$216.0M	$216.0M
YoY Change	-11.57%	-16.6%	-16.6%
Inventory	$113.0M	$138.0M	$138.0M
Prepaid Expenses
Receivables	$976.0M	$938.0M	$938.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.179B	$1.462B	$1.462B
YoY Change	49.04%	-4.26%	-4.26%
LONG-TERM ASSETS
Property, Plant & Equipment	$28.21B	$28.43B	$28.43B
YoY Change	-0.76%	-3.89%	-3.89%
Goodwill	$47.00M
YoY Change
Intangibles
YoY Change
Long-Term Investments	$6.552B	$6.701B	$6.701B
YoY Change	-2.22%	-8.66%	-8.66%
Other Assets	$619.0M	$581.0M	$581.0M
YoY Change	6.54%	3.57%	3.57%
Total Long-Term Assets	$44.17B	$45.37B	$45.37B
YoY Change	-2.64%	-4.46%	-4.46%
TOTAL ASSETS
Total Short-Term Assets	$2.179B	$1.462B	$1.462B
Total Long-Term Assets	$44.17B	$45.37B	$45.37B
Total Assets	$46.35B	$46.84B	$46.84B
YoY Change	-1.03%	-4.46%	-4.46%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$978.0M	$623.0M	$623.0M
YoY Change	56.98%	-16.26%	-16.26%
Accrued Expenses	$1.167B	$1.448B	$950.0M
YoY Change	-19.41%	34.32%	-11.87%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$93.00M	$93.00M
YoY Change	-100.0%	-81.36%	-81.36%
Long-Term Debt Due	$501.0M	$785.0M	$785.0M
YoY Change	-36.18%	346.02%	346.02%
Total Short-Term Liabilities	$2.646B	$2.949B	$2.949B
YoY Change	-10.27%	18.1%	18.1%
LONG-TERM LIABILITIES
Long-Term Debt	$20.43B	$22.62B	$22.62B
YoY Change	-9.68%	-4.99%	-4.99%
Other Long-Term Liabilities	$3.950B	$2.978B	$2.978B
YoY Change	32.64%	31.31%	31.31%
Total Long-Term Liabilities	$24.38B	$25.60B	$25.60B
YoY Change	-4.76%	-1.83%	-1.83%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.646B	$2.949B	$2.949B
Total Long-Term Liabilities	$24.38B	$25.60B	$25.60B
Total Liabilities	$36.70B	$42.19B	$42.19B
YoY Change	-13.03%	-1.59%	-1.59%
SHAREHOLDERS EQUITY
Retained Earnings	-$8.434B	-$9.649B
YoY Change	-12.59%	21.22%
Common Stock	$19.37B	$15.67B
YoY Change	23.59%	0.52%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.041B	$1.041B
YoY Change	0.0%	0.0%
Treasury Stock Shares	35.00M shares	35.00M shares
Shareholders Equity	$9.656B	$4.643B	$4.643B
YoY Change
Total Liabilities & Shareholders Equity	$46.35B	$46.84B	$46.84B
YoY Change	-1.03%	-4.46%	-4.46%

Cashflow Statement

Concept	2017 Q4	2016 Q4	2016
OPERATING ACTIVITIES
Net Income	$1.687B	-$15.00M	-$424.0M
YoY Change	-11346.67%	-97.9%	-25.74%
Depreciation, Depletion And Amortization	$428.0M	$437.0M	$1.763B
YoY Change	-2.06%	-3.1%	1.44%
Cash From Operating Activities	$858.0M	$2.073B	$4.155B
YoY Change	-58.61%	233.28%	33.43%
INVESTING ACTIVITIES
Capital Expenditures	-$713.0M	-$474.0M	$2.051B
YoY Change	50.42%	-36.12%	-35.24%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	$151.0M	-$17.00M	-$35.00M
YoY Change	-988.24%	-111.33%	-55.7%
Cash From Investing Activities	-$562.0M	-$491.0M	-$891.0M
YoY Change	14.46%	-17.06%	-75.95%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$9.000M
YoY Change			-66.67%
Debt Paid & Issued, Net			$7.091B
YoY Change			8.82%
Cash From Financing Activities	-569.0M	-1.489B	-$3.194B
YoY Change	-61.79%	2607.27%	-808.2%
NET CHANGE
Cash From Operating Activities	858.0M	2.073B	$4.155B
Cash From Investing Activities	-562.0M	-491.0M	-$891.0M
Cash From Financing Activities	-569.0M	-1.489B	-$3.194B
Net Change In Cash	-273.0M	93.00M	$70.00M
YoY Change	-393.55%	-472.0%	-150.0%
FREE CASH FLOW
Cash From Operating Activities	$858.0M	$2.073B	$4.155B
Capital Expenditures	-$713.0M	-$474.0M	$2.051B
Free Cash Flow	$1.571B	$2.547B	$2.104B
YoY Change	-38.32%	86.73%	-4069.81%

Facts In Submission

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CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
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CY2018Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	1800000000	USD
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CY2018	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	32000000	USD
CY2016	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	27000000	USD
CY2017	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	269000000	USD
CY2018	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	447000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	834000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	295000000	USD
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CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	13199000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	1538000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	2491000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	1883000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	1961000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	2411000000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6552000000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	7821000000	USD
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CY2018Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	312000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	312000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	312000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	312000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	312000000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1095000000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	692000000	USD
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CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	535000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	331000000	USD
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CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	397000000	USD
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CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	396000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-25000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1974000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	138000000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	105000000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-1932000000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	78000000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-127000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	0	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-131000000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	187000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	69000000	USD
CY2016	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	22000000	USD
CY2017	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	117000000	USD
CY2018	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	73000000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	43000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	26000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	38000000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	5000000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-17000000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-10000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	28000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	6000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	9000000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	11000000	USD
CY2016	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-82000000	USD
CY2017	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	88000000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	36000000	USD
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CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	23000000	USD
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CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-8000000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	16000000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	4000000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	21000000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-17000000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	8791000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	7767000000	USD
CY2016	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	38000000	USD
CY2017	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	33000000	USD
CY2018	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	48000000	USD
CY2016	us-gaap	Interest Costs Incurred InterestCostsIncurred	1217000000	USD
CY2017	us-gaap	Interest Costs Incurred InterestCostsIncurred	1116000000	USD
CY2018	us-gaap	Interest Costs Incurred InterestCostsIncurred	1160000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	1179000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	1083000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	1112000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	1152000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	1110000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	1064000000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	267000000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	282000000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	113000000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	130000000	USD
CY2016	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	63000000	USD
CY2017	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	282000000	USD
CY2018	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	219000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	64000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	62000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	73000000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	46352000000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	45302000000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2646000000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1811000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	20434000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	22367000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	501000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	47000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	47000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1633000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2021000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	890000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2138000000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	6519000000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1337000000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	940000000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	883000000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	637000000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-1862000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3194000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2460000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1299000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-891000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	100000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2725000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4155000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3089000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3293000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-424000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	2174000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-155000000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	74000000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	335000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	348000000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-424000000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2174000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-156000000	USD
CY2017	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Quantification NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification	37000000	USD
CY2018	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Quantification NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification	-121000000	USD
CY2018	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	267000000	USD
CY2016	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	114000000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	61000000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	46000000	USD
CY2016	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1592000000	USD
CY2017	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1576000000	USD
CY2018	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1507000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	689000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	927000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	768000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	216000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	32000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	15000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	24000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	28000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	31000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	86000000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	337000000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	371000000	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	873000000	USD
CY2017	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	1248000000	USD
CY2018	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	1915000000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	191000000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	174000000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	619000000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	746000000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-15000000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	44000000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-6000000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-8000000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	15000000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-3000000	USD
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	50000000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	1000000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-4000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-3000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-2000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-2000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	-119000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	-36000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	37000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	172000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	100000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	30000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	2000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-6000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-8000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	1000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-20000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-61000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-35000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-12000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-37000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-11000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	4000000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-9000000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-7000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1000000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-2000000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1000000	USD
CY2017Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	3950000000	USD
CY2018Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	3603000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	85000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-25000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	92000000	USD
CY2016	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	429000000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-158000000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-129000000	USD
CY2016	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-135000000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-71000000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-67000000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-35000000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	21000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	37000000	USD
CY2016	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	-30000000	USD
CY2017	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	41000000	USD
CY2018	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	7000000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9000000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	17000000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	26000000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1261000000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	992000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1386000000	USD
CY2016	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	940000000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	822000000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	591000000	USD
CY2016	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	177000000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	132000000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	1132000000	USD
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2145000000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2814000000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3171000000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2051000000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2399000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3256000000	USD
CY2016	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2017	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2018	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1000000	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	35000000	USD
CY2016	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	218000000	USD
CY2017	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	426000000	USD
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CY2016	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	1020000000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	2067000000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	1296000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	114000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	0	USD
CY2017Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2100000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	9000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2131000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	15000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	6528000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3333000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3926000000	USD
CY2016	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	29000000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	17000000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	15000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-16000000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-92000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-46000000	USD
CY2016	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-409000000	USD
CY2017	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-93000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-2000000	USD
CY2016	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	34000000	USD
CY2017	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	200000000	USD
CY2018	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-350000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	2509000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	193000000	USD
CY2016	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1912000000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2662000000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	3021000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	39513000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	38661000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	28211000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	27504000000	USD
CY2017Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	976000000	USD
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	992000000	USD
CY2017Q4	us-gaap	Regulatory Assets RegulatoryAssets	478000000	USD
CY2018Q4	us-gaap	Regulatory Assets RegulatoryAssets	598000000	USD
CY2017Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	102000000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	103000000	USD
CY2017Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	376000000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	495000000	USD
CY2017Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1268000000	USD
CY2018Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1326000000	USD
CY2017Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	18000000	USD
CY2018Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	5000000	USD
CY2017Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1250000000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1321000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	7091000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	5925000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3204000000	USD
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CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	8604000000	USD
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CY2018	us-gaap	Revenues Revenues	8686000000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	722000000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	594000000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	569000000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	73000000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	78000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	55000000	USD
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CY2017Q1	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	9750000	shares
CY2017Q1	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	65000000	shares
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2118000000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	35000000	USD
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CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	9656000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	14660000000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	16225000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14046000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	16175000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15997000000	USD
CY2016	us-gaap	Stockholders Equity Other StockholdersEquityOther	-6000000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	2000000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	5000000	USD
CY2016	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-2179000000	USD
CY2017	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	2129000000	USD
CY2018	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-178000000	USD
CY2018Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	105000000	USD
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	35000000	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	35000000	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1041000000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1041000000	USD
CY2017Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	122000000	USD
CY2018Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	131000000	USD
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CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	51000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2000000	USD
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CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	800000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	1000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	50000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	51000000	USD
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-31000000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	750673000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	828518000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	973626000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	750673000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	826177000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	973626000	shares
CY2016	wmb	Asset Retirement Obligation Accretion Expense For Nonregulated Operations AssetRetirementObligationAccretionExpenseForNonregulatedOperations	31000000	USD
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CY2018	wmb	Asset Retirement Obligation Accretion Expense For Nonregulated Operations AssetRetirementObligationAccretionExpenseForNonregulatedOperations	33000000	USD
CY2018	wmb	Contract Liability Noncash Interest Expense Significant Financing Obligation ContractLiabilityNoncashInterestExpenseSignificantFinancingObligation	16000000	USD
CY2018	wmb	Contract With Customer Asset Minimum Volume Commitments Invoiced ContractWithCustomerAssetMinimumVolumeCommitmentsInvoiced	66000000	USD
CY2018	wmb	Contract With Customer Liability Payments Receivedand Deferred ContractWithCustomerLiabilityPaymentsReceivedandDeferred	314000000	USD
CY2018	wmb	Contractwith Customer Asset Amounts Recognized In Excess Of Cash Received ContractwithCustomerAssetAmountsRecognizedInExcessOfCashReceived	66000000	USD
CY2016	wmb	Contribution To Gulfstream For Repayment Of Debt1 ContributionToGulfstreamForRepaymentOfDebt1	148000000	USD
CY2017	wmb	Contribution To Gulfstream For Repayment Of Debt1 ContributionToGulfstreamForRepaymentOfDebt1	0	USD
CY2018	wmb	Contribution To Gulfstream For Repayment Of Debt1 ContributionToGulfstreamForRepaymentOfDebt1	0	USD
CY2016	wmb	Contributions From Noncontrolling Interests ContributionsFromNoncontrollingInterests	29000000	USD
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CY2018	wmb	Contributions From Noncontrolling Interests ContributionsFromNoncontrollingInterests	15000000	USD
CY2018Q4	wmb	Defined Benefit Plan Fair Value Assets Level1 To Level2 Transfers Amount DefinedBenefitPlanFairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2018Q4	wmb	Defined Benefit Plan Fair Value Assets Level2 To Level1 Transfers Amount DefinedBenefitPlanFairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2016	wmb	Equity Method Investment Summarized Financial Information Operating Income EquityMethodInvestmentSummarizedFinancialInformationOperatingIncome	799000000	USD
CY2017	wmb	Equity Method Investment Summarized Financial Information Operating Income EquityMethodInvestmentSummarizedFinancialInformationOperatingIncome	871000000	USD
CY2018	wmb	Equity Method Investment Summarized Financial Information Operating Income EquityMethodInvestmentSummarizedFinancialInformationOperatingIncome	804000000	USD
CY2016	wmb	Impairment Of And Net Gain Loss On Sale Of Assets And Businesses ImpairmentOfAndNetGainLossOnSaleOfAssetsAndBusinesses	918000000	USD
CY2017	wmb	Impairment Of And Net Gain Loss On Sale Of Assets And Businesses ImpairmentOfAndNetGainLossOnSaleOfAssetsAndBusinesses	1249000000	USD
CY2018	wmb	Impairment Of And Net Gain Loss On Sale Of Assets And Businesses ImpairmentOfAndNetGainLossOnSaleOfAssetsAndBusinesses	1915000000	USD
CY2016	wmb	Income Tax Reconciliation Translation Adjustment Of Certain Unrecognized Tax Benefits IncomeTaxReconciliationTranslationAdjustmentOfCertainUnrecognizedTaxBenefits	-1000000	USD
CY2017	wmb	Income Tax Reconciliation Translation Adjustment Of Certain Unrecognized Tax Benefits IncomeTaxReconciliationTranslationAdjustmentOfCertainUnrecognizedTaxBenefits	0	USD
CY2018	wmb	Income Tax Reconciliation Translation Adjustment Of Certain Unrecognized Tax Benefits IncomeTaxReconciliationTranslationAdjustmentOfCertainUnrecognizedTaxBenefits	0	USD
CY2016	wmb	Increase Decrease In Accounts Payable And Accrued Liabilities Related To Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid	-139000000	USD
CY2017	wmb	Increase Decrease In Accounts Payable And Accrued Liabilities Related To Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid	263000000	USD
CY2018	wmb	Increase Decrease In Accounts Payable And Accrued Liabilities Related To Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid	-235000000	USD
CY2018	wmb	Maximum Percentage Of Portfolio Invested In Debt Securities Of Any One Issuer With Exception Of Us Government Guaranteed And Agency Securities MaximumPercentageOfPortfolioInvestedInDebtSecuritiesOfAnyOneIssuerWithExceptionOfUsGovernmentGuaranteedAndAgencySecurities	0.05
CY2018	wmb	Maximum Percentage Of Total Stock Portfolio Invested In Common Stock Of Any One Corporation MaximumPercentageOfTotalStockPortfolioInvestedInCommonStockOfAnyOneCorporation	0.05
CY2018	wmb	Minimum Period Of Construction For Capitalization Of Interest MinimumPeriodOfConstructionForCapitalizationOfInterest	P3M
CY2018	wmb	Minimum Total Project Cost For Capitalization Of Interest MinimumTotalProjectCostForCapitalizationOfInterest	1000000	USD
CY2016	wmb	Modified Ebitda Earnings Loss ModifiedEbitdaEarningsLoss	3322000000	USD
CY2017	wmb	Modified Ebitda Earnings Loss ModifiedEbitdaEarningsLoss	3466000000	USD
CY2018	wmb	Modified Ebitda Earnings Loss ModifiedEbitdaEarningsLoss	3388000000	USD
CY2016	wmb	Processingcommodityexpenses Processingcommodityexpenses	0	USD
CY2017	wmb	Processingcommodityexpenses Processingcommodityexpenses	0	USD
CY2018	wmb	Processingcommodityexpenses Processingcommodityexpenses	137000000	USD
CY2016	wmb	Proportional Modified Ebitda Equity Method Investments ProportionalModifiedEbitdaEquityMethodInvestments	754000000	USD
CY2017	wmb	Proportional Modified Ebitda Equity Method Investments ProportionalModifiedEbitdaEquityMethodInvestments	795000000	USD
CY2018	wmb	Proportional Modified Ebitda Equity Method Investments ProportionalModifiedEbitdaEquityMethodInvestments	770000000	USD
CY2016	wmb	Regulatory Charges In Operating Expense Resulting From Tax Reform RegulatoryChargesInOperatingExpenseResultingFromTaxReform	0	USD
CY2017	wmb	Regulatory Charges In Operating Expense Resulting From Tax Reform RegulatoryChargesInOperatingExpenseResultingFromTaxReform	674000000	USD
CY2018	wmb	Regulatory Charges In Operating Expense Resulting From Tax Reform RegulatoryChargesInOperatingExpenseResultingFromTaxReform	-17000000	USD
CY2016	wmb	Regulatory Charges Resulting From Tax Reform RegulatoryChargesResultingFromTaxReform	0	USD
CY2017	wmb	Regulatory Charges Resulting From Tax Reform RegulatoryChargesResultingFromTaxReform	776000000	USD
CY2018	wmb	Regulatory Charges Resulting From Tax Reform RegulatoryChargesResultingFromTaxReform	-15000000	USD
CY2016	wmb	Salesrevenueservicescommodityconsideration Salesrevenueservicescommodityconsideration	0	USD
CY2017	wmb	Salesrevenueservicescommodityconsideration Salesrevenueservicescommodityconsideration	0	USD
CY2018	wmb	Salesrevenueservicescommodityconsideration Salesrevenueservicescommodityconsideration	400000000	USD
CY2018Q4	wmb	Threshold For Amortization Of Unrecognized Actuarial Gains Losses ThresholdForAmortizationOfUnrecognizedActuarialGainsLosses	0.1
CY2018	wmb	Variable Interest Entity Nonconsolidated Contract Liability1 VariableInterestEntityNonconsolidatedContractLiability1	26000000	USD
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:13px;text-indent:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of estimates</font></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.</font></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Significant estimates and assumptions include:</font></div><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Impairment assessments of investments, property, plant, and equipment, and other identifiable intangible assets;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Litigation-related contingencies;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Environmental remediation obligations;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Depreciation and/or amortization of long-lived assets;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Depreciation and/or amortization of equity-method investment basis differences;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Asset retirement obligations (AROs);</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Pension and postretirement valuation variables;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Measurement of regulatory liabilities;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:12px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:12pt;padding-left:24px;"><font style="font-family:inherit;font-size:12pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:12pt;"><font style="font-family:inherit;font-size:10pt;">Measurement of deferred income tax assets and liabilities, including assumptions related to the realization of deferred income tax assets.</font></div></td></tr></table><div style="line-height:120%;padding-top:13px;text-align:justify;padding-left:48px;text-indent:-24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">These estimates are discussed further throughout these notes.</font></div></div>
CY2018	wmb	Equity Method Investment Basis Difference Policy Policy Textblock EquityMethodInvestmentBasisDifferencePolicyPolicyTextblock	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:13px;text-indent:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Equity-method investment basis differences</font></div><div style="line-height:120%;padding-top:13px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Differences between the cost of our equity-method investments and our underlying equity in the net assets of investees are accounted for as if the investees were consolidated subsidiaries. </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Equity earnings (losses)</font><font style="font-family:inherit;font-size:10pt;"> in the </font><font style="font-family:inherit;font-size:10pt;font-weight:normal;">Consolidated Statement of Operations</font><font style="font-family:inherit;font-size:10pt;"> includes our allocable share of net income (loss) of investees adjusted for any depreciation and amortization, as applicable, associated with basis differences.</font></div></div>

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0000107263-19-000007-index.html	Edgar Link	pending
0000107263-19-000007.txt	Edgar Link	pending
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2017 Q4 Form 10-K Financial Statement

#000010726319000007 Filed on February 21, 2019

Income Statement

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$WMB WILLIAMS COMPANIES, INC. Stock $wmb

2017 Q4 Form 10-K Financial Statement

#000010726319000007 Filed on February 21, 2019

Income Statement

Balance Sheet

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Files In Submission

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WILLIAMS COMPANIES, INC. Stock $wmb