$WMB
WILLIAMS COMPANIES, INC. Stock $wmb

$wmb Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 8-K Financial Statement

#000010726318000015 Filed on May 03, 2018

Income Statement

Concept	2016 Q4	2016	2015 Q4
Revenue	$2.198B	$7.499B	$2.006B
YoY Change	9.57%	1.89%	-6.31%
Cost Of Revenue	$545.0M	$1.725B	$397.0M
YoY Change	37.28%	-3.04%	-44.55%
Gross Profit	$1.653B	$5.774B	$1.609B
YoY Change	2.73%	3.46%	12.91%
Gross Profit Margin	75.2%	77.0%	80.21%
Selling, General & Admin	$568.0M	$722.0M	$622.0M
YoY Change	-8.68%	-1.9%	-8.26%
% of Gross Profit	34.36%	12.5%	38.66%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$437.0M	$1.763B	$451.0M
YoY Change	-3.1%	1.44%	19.0%
% of Gross Profit	26.44%	30.53%	28.03%
Operating Expenses	$1.010B	$722.0M	$1.260B
YoY Change	-19.84%	-1.9%	40.94%
Operating Profit	$643.0M	$689.0M	$349.0M
YoY Change	84.24%	203.52%	-34.27%
Interest Expense	-$199.0M	$1.179B	-$169.0M
YoY Change	17.75%	12.93%	37.4%
% of Operating Profit	-30.95%	171.12%	-48.42%
Other Income/Expense, Net	$22.00M	$85.00M	$32.00M
YoY Change	-31.25%	-15.84%	100.0%
Pretax Income	$86.00M	-$375.0M	-$1.784B
YoY Change	-104.82%	-78.11%	-520.75%
Income Tax	$49.00M	-$25.00M	-$447.0M
% Of Pretax Income	56.98%
Net Earnings	-$15.00M	-$424.0M	-$715.0M
YoY Change	-97.9%	-25.74%	-470.47%
Net Earnings / Revenue	-0.68%	-5.65%	-35.64%
Basic Earnings Per Share		-$0.57
Diluted Earnings Per Share	-$19.97K	-$0.57	-$954.2K
COMMON SHARES
Basic Shares Outstanding	750.8M shares	750.7M shares	749.8M shares
Diluted Shares Outstanding		750.7M shares

Balance Sheet

Concept	2016 Q4	2016	2015 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$170.0M	$170.0M	$100.0M
YoY Change	70.0%	70.0%	-58.33%
Cash & Equivalents	$170.0M	$170.0M	$100.0M
Short-Term Investments
Other Short-Term Assets	$216.0M	$216.0M	$259.0M
YoY Change	-16.6%	-16.6%	21.6%
Inventory	$138.0M	$138.0M	$127.0M
Prepaid Expenses
Receivables	$938.0M	$938.0M	$1.041B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.462B	$1.462B	$1.527B
YoY Change	-4.26%	-4.26%	-19.21%
LONG-TERM ASSETS
Property, Plant & Equipment	$28.43B	$28.43B	$29.58B
YoY Change	-3.89%	-3.89%	5.33%
Goodwill			$47.00M
YoY Change			-95.8%
Intangibles			$9.970B
YoY Change			-4.62%
Long-Term Investments	$6.701B	$6.701B	$7.336B
YoY Change	-8.66%	-8.66%	-12.67%
Other Assets	$581.0M	$581.0M	$561.0M
YoY Change	3.57%	3.57%	9.78%
Total Long-Term Assets	$45.37B	$45.37B	$47.49B
YoY Change	-4.46%	-4.46%	-2.21%
TOTAL ASSETS
Total Short-Term Assets	$1.462B	$1.462B	$1.527B
Total Long-Term Assets	$45.37B	$45.37B	$47.49B
Total Assets	$46.84B	$46.84B	$49.02B
YoY Change	-4.46%	-4.46%	-2.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$623.0M	$623.0M	$744.0M
YoY Change	-16.26%	-16.26%	-13.99%
Accrued Expenses	$1.448B	$950.0M	$1.078B
YoY Change	34.32%	-11.87%	19.78%
Deferred Revenue
YoY Change
Short-Term Debt	$93.00M	$93.00M	$499.0M
YoY Change	-81.36%	-81.36%	-37.47%
Long-Term Debt Due	$785.0M	$785.0M	$176.0M
YoY Change	346.02%	346.02%	4300.0%
Total Short-Term Liabilities	$2.949B	$2.949B	$2.497B
YoY Change	18.1%	18.1%	-2.73%
LONG-TERM LIABILITIES
Long-Term Debt	$22.62B	$22.62B	$23.81B
YoY Change	-4.99%	-4.99%	14.59%
Other Long-Term Liabilities	$2.978B	$2.978B	$2.268B
YoY Change	31.31%	31.31%	1.98%
Total Long-Term Liabilities	$25.60B	$25.60B	$26.08B
YoY Change	-1.83%	-1.83%	13.37%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.949B	$2.949B	$2.497B
Total Long-Term Liabilities	$25.60B	$25.60B	$26.08B
Total Liabilities	$42.19B	$42.19B	$42.87B
YoY Change	-1.59%	-1.59%	2.86%
SHAREHOLDERS EQUITY
Retained Earnings	-$9.649B		-$7.960B
YoY Change	21.22%		43.48%
Common Stock	$15.67B		$15.59B
YoY Change	0.52%		-0.74%
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	$4.643B	$4.643B	$6.148B
YoY Change
Total Liabilities & Shareholders Equity	$46.84B	$46.84B	$49.02B
YoY Change	-4.46%	-4.46%	-2.84%

Cashflow Statement

Concept	2016 Q4	2016	2015 Q4
OPERATING ACTIVITIES
Net Income	-$15.00M	-$424.0M	-$715.0M
YoY Change	-97.9%	-25.74%	-470.47%
Depreciation, Depletion And Amortization	$437.0M	$1.763B	$451.0M
YoY Change	-3.1%	1.44%	19.0%
Cash From Operating Activities	$2.073B	$4.155B	$622.0M
YoY Change	233.28%	33.43%	-38.48%
INVESTING ACTIVITIES
Capital Expenditures	-$474.0M	$2.051B	-$742.0M
YoY Change	-36.12%	-35.24%	-31.8%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	-$17.00M	-$35.00M	$150.0M
YoY Change	-111.33%	-55.7%	-354.24%
Cash From Investing Activities	-$491.0M	-$891.0M	-$592.0M
YoY Change	-17.06%	-75.95%	-48.39%
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	-1.489B	-$3.194B	-55.00M
YoY Change	2607.27%	-808.2%	-174.32%
NET CHANGE
Cash From Operating Activities	2.073B	$4.155B	622.0M
Cash From Investing Activities	-491.0M	-$891.0M	-592.0M
Cash From Financing Activities	-1.489B	-$3.194B	-55.00M
Net Change In Cash	93.00M	$70.00M	-25.00M
YoY Change	-472.0%	-150.0%	-59.68%
FREE CASH FLOW
Cash From Operating Activities	$2.073B	$4.155B	$622.0M
Capital Expenditures	-$474.0M	$2.051B	-$742.0M
Free Cash Flow	$2.547B	$2.104B	$1.364B
YoY Change	86.73%	-4069.81%	-35.02%

Facts In Submission

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CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	34000000	USD
CY2015	us-gaap	Depreciation Depreciation	1382000000	USD
CY2016	us-gaap	Depreciation Depreciation	1407000000	USD
CY2017	us-gaap	Depreciation Depreciation	1389000000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1738000000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1763000000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1736000000	USD
CY2015	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1836000000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1261000000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	992000000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.76
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.57
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.63
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.76
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.57
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.62
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	223000000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	202000000	USD
CY2016Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	1900000000	USD
CY2017Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	1800000000	USD
CY2015	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	619000000	USD
CY2016	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	742000000	USD
CY2017	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	784000000	USD
CY2015	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	1359000000	USD
CY2016	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	430000000	USD
CY2017	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	0	USD
CY2015	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	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
CY2016Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	508000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	447000000	USD
CY2016Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	412000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	295000000	USD
CY2015	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	611000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	726000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	806000000	USD
CY2016Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	9695000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	9181000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	1538000000	USD
CY2015	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	1707000000	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
CY2016Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6701000000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6552000000	USD
CY2016Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2017Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0	USD
CY2016Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2017Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	337000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	337000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	337000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	337000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	337000000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	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
CY2015	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2016	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	1095000000	USD
CY2015	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1098000000	USD
CY2016	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1713000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-375000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	535000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	20000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-885000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-7000000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	335000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	397000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	434000000	USD
CY2017	us-gaap	Income Tax Effects Allocated Directly To Equity Other IncomeTaxEffectsAllocatedDirectlyToEquityOther	910000000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-399000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-25000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1974000000	USD
CY2015	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	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
CY2015	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	8000000	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
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-600000000	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
CY2015	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	-263000000	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
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	43000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	26000000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	22000000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	5000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	6000000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-21000000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3000000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-17000000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-136000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	28000000	USD
CY2015	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-39000000	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
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-88000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	35000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	118000000	USD
CY2015	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	54000000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	512000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-92000000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-105000000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	25000000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-8000000	USD
CY2015	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-4000000	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
CY2015	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	126000000	USD
CY2016	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	7000000	USD
CY2017	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	9000000	USD
CY2016Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	9663000000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	8791000000	USD
CY2015	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	74000000	USD
CY2016	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	38000000	USD
CY2017	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	33000000	USD
CY2015	us-gaap	Interest Costs Incurred InterestCostsIncurred	1118000000	USD
CY2016	us-gaap	Interest Costs Incurred InterestCostsIncurred	1217000000	USD
CY2017	us-gaap	Interest Costs Incurred InterestCostsIncurred	1116000000	USD
CY2015	us-gaap	Interest Expense InterestExpense	1044000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	1179000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	1083000000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	1023000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	1152000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	1110000000	USD
CY2016Q4	us-gaap	Interest Payable Current InterestPayableCurrent	310000000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	267000000	USD
CY2016Q4	us-gaap	Inventory Net InventoryNet	138000000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	113000000	USD
CY2015	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	27000000	USD
CY2016	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	63000000	USD
CY2017	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	282000000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	69000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	64000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	62000000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	46835000000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	46352000000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2949000000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2646000000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	22624000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	20434000000	USD
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	785000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	501000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	502000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2003000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1143000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	2123000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	33000000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	9403000000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	6519000000	USD
CY2015	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	942000000	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
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	451000000	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
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3705000000	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
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3114000000	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
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-571000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-424000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	2174000000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-743000000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	74000000	USD
CY2015	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	59000000	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
CY2015	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1659000000	USD
CY2016	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1592000000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	335000000	USD
CY2017	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1576000000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	227000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	689000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	927000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	316000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	43000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	29000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	33000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	33000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	41000000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	137000000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	301000000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	221000000	USD
CY2015	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	209000000	USD
CY2016	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	873000000	USD
CY2017	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	1248000000	USD
CY2016Q4	us-gaap	Other Assets Current OtherAssetsCurrent	216000000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	191000000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	581000000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	619000000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	8000000	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
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	5000000	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
CY2015	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-204000000	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
CY2015	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
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
CY2015	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-3000000	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
CY2015	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 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
CY2015	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 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
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-31000000	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
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-171000000	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
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	6000000	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
CY2015	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 On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	1000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-28000000	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
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-18000000	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
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	6000000	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
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	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
CY2016Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	2978000000	USD
CY2017Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	3950000000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	101000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	85000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-25000000	USD
CY2015	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-125000000	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
CY2015	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-40000000	USD
CY2016	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-142000000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-80000000	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-79000000	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
CY2015	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	-3000000	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
CY2015	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	35000000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9000000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	17000000	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1836000000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1261000000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	992000000	USD
CY2015	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	942000000	USD
CY2016	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	940000000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	822000000	USD
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	112000000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2015	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	595000000	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
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3336000000	USD
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2145000000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2814000000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3167000000	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
CY2015	us-gaap	Proceeds From Contribution In Aid Of Construction ProceedsFromContributionInAidOfConstruction	87000000	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
CY2015	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
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
CY2015	us-gaap	Proceeds From Issuance Of Common Limited Partners Units ProceedsFromIssuanceOfCommonLimitedPartnersUnits	59000000	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
CY2017Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2100000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	27000000	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
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	9772000000	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
CY2015	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	111000000	USD
CY2016	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	29000000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	17000000	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-31000000	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
CY2015	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-306000000	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
CY2015	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	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
CY2015	us-gaap	Profit Loss ProfitLoss	-1314000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	-350000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	2509000000	USD
CY2015	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	3024000000	USD
CY2016	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1912000000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2662000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	38912000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	39513000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	28428000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	28211000000	USD
CY2016Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	938000000	USD
CY2017Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	976000000	USD
CY2016Q4	us-gaap	Regulatory Assets RegulatoryAssets	478000000	USD
CY2017Q4	us-gaap	Regulatory Assets RegulatoryAssets	478000000	USD
CY2016Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	91000000	USD
CY2017Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	102000000	USD
CY2016Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	387000000	USD
CY2017Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	376000000	USD
CY2016Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	509000000	USD
CY2017Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1268000000	USD
CY2016Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	11000000	USD
CY2017Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	18000000	USD
CY2016Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	498000000	USD
CY2017Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1250000000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6516000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	7091000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	5925000000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-9649000000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-8434000000	USD
CY2015	us-gaap	Revenues Revenues	7360000000	USD
CY2016	us-gaap	Revenues Revenues	7499000000	USD
CY2017	us-gaap	Revenues Revenues	8031000000	USD
CY2015	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	2196000000	USD
CY2016	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	2328000000	USD
CY2017	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	2719000000	USD
CY2015	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	5164000000	USD
CY2016	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	5171000000	USD
CY2017	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	5312000000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	736000000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	722000000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	594000000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	82000000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	73000000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	78000000	USD
CY2017Q1	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	29.00
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
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	30000000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	57000000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	74000000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	4643000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	9656000000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	20172000000	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
CY2015	us-gaap	Stockholders Equity Other StockholdersEquityOther	-22000000	USD
CY2016	us-gaap	Stockholders Equity Other StockholdersEquityOther	-6000000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	2000000	USD
CY2015	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-3947000000	USD
CY2016	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	-2179000000	USD
CY2017	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	2129000000	USD
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	35000000	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	35000000	shares
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1041000000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	1041000000	USD
CY2016Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	119000000	USD
CY2017Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	122000000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	55000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	50000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	1000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	0	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	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	3000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2000000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-22000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	300000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-400000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	49000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	50000000	USD
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-127000000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	749271000	shares
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
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	749271000	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
CY2015	wmb	Asset Retirement Obligation Accretion Expense For Nonregulated Operations AssetRetirementObligationAccretionExpenseForNonregulatedOperations	28000000	USD
CY2016	wmb	Asset Retirement Obligation Accretion Expense For Nonregulated Operations AssetRetirementObligationAccretionExpenseForNonregulatedOperations	31000000	USD
CY2017	wmb	Asset Retirement Obligation Accretion Expense For Nonregulated Operations AssetRetirementObligationAccretionExpenseForNonregulatedOperations	33000000	USD
CY2015	wmb	Contribution To Gulfstream For Repayment Of Debt1 ContributionToGulfstreamForRepaymentOfDebt1	248000000	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
CY2015	wmb	Contributions From Noncontrolling Interests ContributionsFromNoncontrollingInterests	111000000	USD
CY2016	wmb	Contributions From Noncontrolling Interests ContributionsFromNoncontrollingInterests	29000000	USD
CY2017	wmb	Contributions From Noncontrolling Interests ContributionsFromNoncontrollingInterests	17000000	USD
CY2017	wmb	Cumulative Effect Of New Accounting Principle In Period Adopted CumulativeEffectOfNewAccountingPrincipleInPeriodAdopted	37000000	USD
CY2015	wmb	Equity Method Investment Summarized Financial Information Operating Income EquityMethodInvestmentSummarizedFinancialInformationOperatingIncome	690000000	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
CY2015	wmb	Impairment Of And Net Gain Loss On Sale Of Assets And Businesses ImpairmentOfAndNetGainLossOnSaleOfAssetsAndBusinesses	215000000	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
CY2015	wmb	Income Tax Reconciliation Translation Adjustment Of Certain Unrecognized Tax Benefits IncomeTaxReconciliationTranslationAdjustmentOfCertainUnrecognizedTaxBenefits	-71000000	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
CY2015	wmb	Increase Decrease In Accounts Payable And Accrued Liabilities Related To Capital Expenditures Incurred But Not Yet Paid IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid	-143000000	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
CY2015Q4	wmb	Long Lived Assets LongLivedAssets	39596000000	USD
CY2016Q4	wmb	Long Lived Assets LongLivedAssets	38091000000	USD
CY2017Q4	wmb	Long Lived Assets LongLivedAssets	37002000000	USD
CY2017	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
CY2017	wmb	Maximum Percentage Of Total Stock Portfolio Invested In Common Stock Of Any One Corporation MaximumPercentageOfTotalStockPortfolioInvestedInCommonStockOfAnyOneCorporation	0.05
CY2017	wmb	Minimum Period Of Construction For Capitalization Of Interest MinimumPeriodOfConstructionForCapitalizationOfInterest	P3M
CY2017	wmb	Minimum Total Project Cost For Capitalization Of Interest MinimumTotalProjectCostForCapitalizationOfInterest	1000000	USD
CY2015	wmb	Modified Ebitda Earnings Loss ModifiedEbitdaEarningsLoss	3891000000	USD
CY2016	wmb	Modified Ebitda Earnings Loss ModifiedEbitdaEarningsLoss	3322000000	USD
CY2017	wmb	Modified Ebitda Earnings Loss ModifiedEbitdaEarningsLoss	3466000000	USD
CY2015	wmb	Proportional Modified Ebitda Equity Method Investments ProportionalModifiedEbitdaEquityMethodInvestments	699000000	USD
CY2016	wmb	Proportional Modified Ebitda Equity Method Investments ProportionalModifiedEbitdaEquityMethodInvestments	754000000	USD
CY2017	wmb	Proportional Modified Ebitda Equity Method Investments ProportionalModifiedEbitdaEquityMethodInvestments	795000000	USD
CY2015	wmb	Regulatory Charges In Operating Expense Resulting From Tax Reform RegulatoryChargesInOperatingExpenseResultingFromTaxReform	0	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
CY2015	wmb	Regulatory Charges Resulting From Tax Reform RegulatoryChargesResultingFromTaxReform	0	USD
CY2016	wmb	Regulatory Charges Resulting From Tax Reform RegulatoryChargesResultingFromTaxReform	0	USD
CY2017	wmb	Regulatory Charges Resulting From Tax Reform RegulatoryChargesResultingFromTaxReform	776000000	USD
CY2017Q4	wmb	Restricted Net Assets Threshold RestrictedNetAssetsThreshold	0.25
CY2015	wmb	Special Distribution From Gulfstream SpecialDistributionFromGulfstream	396000000	USD
CY2016	wmb	Special Distribution From Gulfstream SpecialDistributionFromGulfstream	0	USD
CY2017	wmb	Special Distribution From Gulfstream SpecialDistributionFromGulfstream	0	USD
CY2017Q4	wmb	Threshold For Amortization Of Unrecognized Actuarial Gains Losses ThresholdForAmortizationOfUnrecognizedActuarialGainsLosses	0.1
CY2017	us-gaap	Revenue Recognition Deferred Revenue RevenueRecognitionDeferredRevenue	<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;">Deferred income</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We record a liability for deferred income related to cash received from customers in advance of providing our services. Such amounts are generally recognized in revenue upon satisfying our performance obligations, primarily providing services based on units of production or over remaining contractual service periods ranging from </font><font style="font-family:inherit;font-size:10pt;">1</font><font style="font-family:inherit;font-size:10pt;"> to </font><font style="font-family:inherit;font-size:10pt;">25</font><font style="font-family:inherit;font-size:10pt;"> years. Deferred income</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;"> </font><font style="font-family:inherit;font-size:10pt;">is reflected within </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Accrued liabilities</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> </font><font style="font-family:inherit;font-size:10pt;">and </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Regulatory liabilities, deferred income, and other</font><font style="font-family:inherit;font-size:10pt;font-style:italic;"> </font><font style="font-family:inherit;font-size:10pt;">on the </font><font style="font-family:inherit;font-size:10pt;">Consolidated Balance Sheet</font><font style="font-family:inherit;font-size:10pt;">.  (See </font><font style="font-family:inherit;font-size:10pt;">Note 12 – Accrued Liabilities</font><font style="font-family:inherit;font-size:10pt;">.)  </font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">WPZ received an aggregate amount of </font><font style="font-family:inherit;font-size:10pt;">$240 million</font><font style="font-family:inherit;font-size:10pt;"> in three equal installments as certain milestones of Transco’s Hillabee Expansion Project were met related to an agreement to resolve several matters in relation to the project. (See </font><font style="font-family:inherit;font-size:10pt;">Note 12 – Accrued Liabilities</font><font style="font-family:inherit;font-size:10pt;">.) During the third quarter of 2017, WPZ received the final installment and placed the project into service. As a result of placing the project into service, WPZ reclassified the refundable deposits to deferred income and expects to recognize income associated with these receipts over the term of an underlying contract.</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">During 2016, we received cash proceeds totaling </font><font style="font-family:inherit;font-size:10pt;">$820 million</font><font style="font-family:inherit;font-size:10pt;"> associated with restructuring certain gas gathering contracts in the Barnett Shale and Mid-Continent regions. The proceeds were recorded as deferred income</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;"> </font><font style="font-family:inherit;font-size:10pt;">and are being amortized into income.</font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In October 2016, we received </font><font style="font-family:inherit;font-size:10pt;">$104 million</font><font style="font-family:inherit;font-size:10pt;"> of newly constructed assets as part of a noncash investing transaction with a customer for which we provide production handling and other services. The transaction was recorded in </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Property, plant, and equipment – net</font><font style="font-family:inherit;font-size:10pt;"> and deferred income in the </font><font style="font-family:inherit;font-size:10pt;">Consolidated Balance Sheet</font><font style="font-family:inherit;font-size:10pt;"> and is being amortized based on units of production through 2024. Due to the noncash nature of this transaction, it is not presented within the </font><font style="font-family:inherit;font-size:10pt;">Consolidated Statement of Cash Flows</font><font style="font-family:inherit;font-size:10pt;">.</font></div></div>
CY2017	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, goodwill, 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;">Realization of deferred income tax 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;</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:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Measurement of deferred income tax assets and liabilities.</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>
CY2017	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;color:#000000;font-weight:normal;text-decoration:none;">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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2016 Q4 Form 8-K Financial Statement

#000010726318000015 Filed on May 03, 2018

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2016 Q4 Form 8-K Financial Statement

#000010726318000015 Filed on May 03, 2018

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