10-K Filing

WILLIAMS COMPANIES, INC. CIK: 107263 FY 2020

Filing Information

Form Type	10-K
Accession Number	`0000107263-21-000006`
Period End Date	20201231
Filing Date	20210224
Fiscal Year	2020
Fiscal Period	FY
XBRL Instance	wmb-20201231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 80 Income Statement 102 Cash Flow Statement 131 Stockholders Equity 43 Comprehensive Income 39

Balance Sheet 80 line items

Line Item	Tag	Value	Unit	Period
Common stock, shares authorized	`CommonStockSharesAuthorized`	1.47B	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$899.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$142.00M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	1.47B	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$168.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$289.00M	USD	Point-in-time
Common stock, par value per share	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common stock, par value per share	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Trade accounts and other receivables	`AccountsReceivableGrossCurrent`	$1.00B	USD	Point-in-time
Trade accounts and other receivables	`AccountsReceivableGrossCurrent`	$1.00B	USD	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$6.00M	USD	Point-in-time
Common Stock, shares issued	`CommonStockSharesIssued`	1.25B	shares	Point-in-time
Common Stock, shares issued	`CommonStockSharesIssued`	1.25B	shares	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$1.00M	USD	Point-in-time
Trade accounts and other receivables - net	`ReceivablesNetCurrent`	$999.00M	USD	Point-in-time
Trade accounts and other receivables - net	`ReceivablesNetCurrent`	$996.00M	USD	Point-in-time
Treasury stock, shares of common stock	`TreasuryStockShares`	35.00M	shares	Point-in-time
Treasury stock, shares of common stock	`TreasuryStockShares`	35.00M	shares	Point-in-time
Inventories	`InventoryNet`	$125.00M	USD	Point-in-time
Inventories	`InventoryNet`	$136.00M	USD	Point-in-time
Other current assets and deferred charges	`OtherAssetsCurrent`	$170.00M	USD	Point-in-time
Other current assets and deferred charges	`OtherAssetsCurrent`	$152.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.58B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.43B	USD	Point-in-time
Investments	`EquityMethodInvestments`	$6.24B	USD	Point-in-time
Investments	`EquityMethodInvestments`	$5.16B	USD	Point-in-time
Property, plant, and equipment net	`PropertyPlantAndEquipmentNet`	$29.20B	USD	Point-in-time
Property, plant, and equipment net	`PropertyPlantAndEquipmentNet`	$28.93B	USD	Point-in-time
Intangible assets net of accumulated amortization	`IntangibleAssetsNetIncludingGoodwill`	$7.44B	USD	Point-in-time
Intangible assets net of accumulated amortization	`IntangibleAssetsNetIncludingGoodwill`	$7.96B	USD	Point-in-time
Regulatory assets, deferred charges, and other	`OtherAssetsNoncurrent`	$1.07B	USD	Point-in-time
Regulatory assets, deferred charges, and other	`OtherAssetsNoncurrent`	$1.20B	USD	Point-in-time
Total assets	`Assets`	$44.16B	USD	Point-in-time
Total assets	`Assets`	$46.04B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$552.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$482.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$1.28B	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$944.00M	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$2.14B	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$893.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.97B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.32B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$20.15B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$21.45B	USD	Point-in-time
Deferred income tax liabilities	`DeferredTaxAndOtherLiabilitiesNoncurrent`	$1.78B	USD	Point-in-time
Deferred income tax liabilities	`DeferredTaxAndOtherLiabilitiesNoncurrent`	$1.92B	USD	Point-in-time
Regulatory liabilities, deferred income, and other	`OtherLiabilitiesAndDeferredRevenueNoncurrent`	$3.78B	USD	Point-in-time
Regulatory liabilities, deferred income, and other	`OtherLiabilitiesAndDeferredRevenueNoncurrent`	$3.89B	USD	Point-in-time
Contingent liabilities and commitments (Note 19)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Contingent liabilities and commitments (Note 19)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock	`PreferredStockValue`	$35.00M	USD	Point-in-time
Preferred stock	`PreferredStockValue`	$35.00M	USD	Point-in-time
Common stock ($1 par value; 1,470 million shares authorized at December 31, 2020 and December 31, 2019; 1,248 million shares issued at December 31, 2020 and 1,247 million shares issued at December 31, 2019)	`CommonStockValue`	$1.25B	USD	Point-in-time
Common stock ($1 par value; 1,470 million shares authorized at December 31, 2020 and December 31, 2019; 1,248 million shares issued at December 31, 2020 and 1,247 million shares issued at December 31, 2019)	`CommonStockValue`	$1.25B	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$24.32B	USD	Point-in-time
Capital in excess of par value	`AdditionalPaidInCapitalCommonStock`	$24.37B	USD	Point-in-time
Retained deficit	`RetainedEarningsAccumulatedDeficit`	$-12.75B	USD	Point-in-time
Retained deficit	`RetainedEarningsAccumulatedDeficit`	$-11.00B	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-199.00M	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-96.00M	USD	Point-in-time
Treasury stock, at cost (35 million shares of common stock)	`TreasuryStockValue`	$1.04B	USD	Point-in-time
Treasury stock, at cost (35 million shares of common stock)	`TreasuryStockValue`	$1.04B	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$13.36B	USD	Point-in-time
Total stockholders equity	`StockholdersEquity`	$11.77B	USD	Point-in-time
Noncontrolling interests in consolidated subsidiaries	`MinorityInterest`	$2.81B	USD	Point-in-time
Noncontrolling interests in consolidated subsidiaries	`MinorityInterest`	$3.00B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.36B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.58B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.18B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.00B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$44.16B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$46.04B	USD	Point-in-time
Common Stock, Par or Stated Value Per Share	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common Stock, Par or Stated Value Per Share	`CommonStockParOrStatedValuePerShare`	$1.00	USD	Point-in-time
Common Stock, Shares Authorized	`CommonStockSharesAuthorized`	1.47B	shares	Point-in-time
Common Stock, Shares Authorized	`CommonStockSharesAuthorized`	1.47B	shares	Point-in-time
Common Stock, Shares, Issued	`CommonStockSharesIssued`	1.25B	shares	Point-in-time
Common Stock, Shares, Issued	`CommonStockSharesIssued`	1.25B	shares	Point-in-time
Treasury Stock, Shares	`TreasuryStockShares`	35.00M	shares	Point-in-time
Treasury Stock, Shares	`TreasuryStockShares`	35.00M	shares	Point-in-time

Income Statement 102 line items

Line Item	Tag	Value	Unit	Period
Revenues	`Revenues`	$8.69B	USD	Annual
Revenues	`Revenues`	$7.72B	USD	Annual
Revenues	`Revenues`	$8.20B	USD	Annual
Operating and maintenance expenses	`OperatingCostsAndExpenses`	$1.33B	USD	Annual
Operating and maintenance expenses	`OperatingCostsAndExpenses`	$1.51B	USD	Annual
Operating and maintenance expenses	`OperatingCostsAndExpenses`	$1.47B	USD	Annual
Depreciation and amortization expenses	`DepreciationDepletionAndAmortization`	$1.73B	USD	Annual
Depreciation and amortization expenses	`DepreciationDepletionAndAmortization`	$1.71B	USD	Annual
Depreciation and amortization expenses	`DepreciationDepletionAndAmortization`	$1.72B	USD	Annual
Selling, general, and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$558.00M	USD	Annual
Selling, general, and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$466.00M	USD	Annual
Selling, general, and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$569.00M	USD	Annual
Impairment of certain assets (Note 18)	`OtherAssetImpairmentCharges`	$182.00M	USD	Annual
Impairment of certain assets (Note 18)	`OtherAssetImpairmentCharges`	$1.92B	USD	Annual
Impairment of certain assets (Note 18)	`OtherAssetImpairmentCharges`	$464.00M	USD	Annual
Impairment of goodwill (Note 18)	`GoodwillImpairmentLoss`	-	USD	Annual
Impairment of goodwill (Note 18)	`GoodwillImpairmentLoss`	-	USD	Annual
Impairment of goodwill (Note 18)	`GoodwillImpairmentLoss`	$187.00M	USD	Annual
Gain on sale of certain assets and businesses (Note 3)	`GainLossOnDispositionOfAssets1`	$-2.00M	USD	Annual
Gain on sale of certain assets and businesses (Note 3)	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Gain on sale of certain assets and businesses (Note 3)	`GainLossOnDispositionOfAssets1`	$692.00M	USD	Annual
Other (income) expense net	`OtherOperatingIncomeExpenseNet`	$-8.00M	USD	Annual
Other (income) expense net	`OtherOperatingIncomeExpenseNet`	$-22.00M	USD	Annual
Other (income) expense net	`OtherOperatingIncomeExpenseNet`	$-50.00M	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$6.28B	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$7.92B	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$5.52B	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$768.00M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$1.92B	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$2.20B	USD	Annual
Equity earnings (losses) (Note 7)	`IncomeLossFromEquityMethodInvestments`	$396.00M	USD	Annual
Equity earnings (losses) (Note 7)	`IncomeLossFromEquityMethodInvestments`	$375.00M	USD	Annual
Equity earnings (losses) (Note 7)	`IncomeLossFromEquityMethodInvestments`	$328.00M	USD	Annual
Impairment of equity-method investments (Note 18)	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$1.05B	USD	Annual
Impairment of equity-method investments (Note 18)	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$186.00M	USD	Annual
Impairment of equity-method investments (Note 18)	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$32.00M	USD	Annual
Other investing income (loss) net (Note 7)	`InvestmentIncomeNonoperating`	$8.00M	USD	Annual
Other investing income (loss) net (Note 7)	`InvestmentIncomeNonoperating`	$107.00M	USD	Annual
Other investing income (loss) net (Note 7)	`InvestmentIncomeNonoperating`	$219.00M	USD	Annual
Interest incurred	`InterestCostsIncurred`	$1.16B	USD	Annual
Interest incurred	`InterestCostsIncurred`	$1.19B	USD	Annual
Interest incurred	`InterestCostsIncurred`	$1.22B	USD	Annual
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$48.00M	USD	Annual
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$32.00M	USD	Annual
Interest capitalized	`InterestCostsCapitalizedAdjustment`	$20.00M	USD	Annual
Other income (expense) net	`OtherNonoperatingIncomeExpense`	$-43.00M	USD	Annual
Other income (expense) net	`OtherNonoperatingIncomeExpense`	$92.00M	USD	Annual
Other income (expense) net	`OtherNonoperatingIncomeExpense`	$33.00M	USD	Annual
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$277.00M	USD	Annual
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.06B	USD	Annual
Income (loss) from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$331.00M	USD	Annual
Less: Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	$138.00M	USD	Annual
Less: Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	$335.00M	USD	Annual
Less: Provision (benefit) for income taxes	`IncomeTaxExpenseBenefit`	$79.00M	USD	Annual
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$193.00M	USD	Annual
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$198.00M	USD	Annual
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$729.00M	USD	Annual
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-15.00M	USD	Annual
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	Annual
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	Annual
Net income (loss)	`ProfitLoss`	$198.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$193.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$714.00M	USD	Annual
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-13.00M	USD	Annual
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$348.00M	USD	Annual
Less: Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$-136.00M	USD	Annual
Net income (loss) attributable to The Williams Companies, Inc.	`NetIncomeLoss`	$211.00M	USD	Annual
Net income (loss) attributable to The Williams Companies, Inc.	`NetIncomeLoss`	$850.00M	USD	Annual
Net income (loss) attributable to The Williams Companies, Inc.	`NetIncomeLoss`	$-155.00M	USD	Annual
Less: Preferred stock dividends (Note 16)	`PreferredStockDividendsIncomeStatementImpact`	$1.00M	USD	Annual
Less: Preferred stock dividends (Note 16)	`PreferredStockDividendsIncomeStatementImpact`	$3.00M	USD	Annual
Less: Preferred stock dividends (Note 16)	`PreferredStockDividendsIncomeStatementImpact`	$3.00M	USD	Annual
Net income (loss) available to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$847.00M	USD	Annual
Net income (loss) available to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-156.00M	USD	Annual
Net income (loss) available to common stockholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$208.00M	USD	Annual
Income (loss) from continuing operations available to common stockholders	`IncomeLossFromContinuingOperations`	$-156.00M	USD	Annual
Income (loss) from continuing operations available to common stockholders	`IncomeLossFromContinuingOperations`	$862.00M	USD	Annual
Income (loss) from continuing operations available to common stockholders	`IncomeLossFromContinuingOperations`	$208.00M	USD	Annual
Net income (loss)	`EarningsPerShareBasic`	$-0.16	USD	Annual
Net income (loss)	`EarningsPerShareBasic`	$0.17	USD	Annual
Net income (loss)	`EarningsPerShareBasic`	$0.70	USD	Annual
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.17	USD	Annual
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.71	USD	Annual
Basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.16	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.01	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Weighted-average shares (thousands)	`WeightedAverageNumberOfSharesOutstandingBasic`	973.63M	shares	Annual
Weighted-average shares (thousands)	`WeightedAverageNumberOfSharesOutstandingBasic`	1.21B	shares	Annual
Weighted-average shares (thousands)	`WeightedAverageNumberOfSharesOutstandingBasic`	1.21B	shares	Annual
Net income (loss)	`EarningsPerShareDiluted`	$0.70	USD	Annual
Net income (loss)	`EarningsPerShareDiluted`	$-0.16	USD	Annual
Net income (loss)	`EarningsPerShareDiluted`	$0.17	USD	Annual
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.16	USD	Annual
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.71	USD	Annual
Diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.17	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.01	USD	Annual
Weighted-average shares (thousands)	`WeightedAverageNumberOfDilutedSharesOutstanding`	973.63M	shares	Annual
Weighted-average shares (thousands)	`WeightedAverageNumberOfDilutedSharesOutstanding`	1.21B	shares	Annual
Weighted-average shares (thousands)	`WeightedAverageNumberOfDilutedSharesOutstanding`	1.22B	shares	Annual

Cash Flow Statement 131 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$198.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$193.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$714.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.73B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.71B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.72B	USD	Annual
Provision (benefit) for deferred income taxes	`DeferredIncomeTaxExpenseBenefitFromContinuingAndDiscontinuedOperations`	$220.00M	USD	Annual
Provision (benefit) for deferred income taxes	`DeferredIncomeTaxExpenseBenefitFromContinuingAndDiscontinuedOperations`	$376.00M	USD	Annual
Provision (benefit) for deferred income taxes	`DeferredIncomeTaxExpenseBenefitFromContinuingAndDiscontinuedOperations`	$108.00M	USD	Annual
Equity (earnings) losses	`IncomeLossFromEquityMethodInvestments`	$396.00M	USD	Annual
Equity (earnings) losses	`IncomeLossFromEquityMethodInvestments`	$375.00M	USD	Annual
Equity (earnings) losses	`IncomeLossFromEquityMethodInvestments`	$328.00M	USD	Annual
Distributions from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$653.00M	USD	Annual
Distributions from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$693.00M	USD	Annual
Distributions from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$657.00M	USD	Annual
Gain on disposition of equity-method investments (Note 7)	`EquityMethodInvestmentRealizedGainLossOnDisposal`	-	USD	Annual
Gain on disposition of equity-method investments (Note 7)	`EquityMethodInvestmentRealizedGainLossOnDisposal`	-	USD	Annual
Gain on disposition of equity-method investments (Note 7)	`EquityMethodInvestmentRealizedGainLossOnDisposal`	$122.00M	USD	Annual
(Gain) on sale of certain assets and businesses (Note 3)	`GainLossOnDispositionOfAssets1`	$-2.00M	USD	Annual
(Gain) on sale of certain assets and businesses (Note 3)	`GainLossOnDispositionOfAssets1`	-	USD	Annual
(Gain) on sale of certain assets and businesses (Note 3)	`GainLossOnDispositionOfAssets1`	$692.00M	USD	Annual
(Gain) loss on deconsolidation of businesses (Note 7)	`DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount`	$-29.00M	USD	Annual
(Gain) loss on deconsolidation of businesses (Note 7)	`DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount`	$203.00M	USD	Annual
(Gain) loss on deconsolidation of businesses (Note 7)	`DeconsolidationRevaluationOfRetainedInvestmentGainOrLossAmount`	-	USD	Annual
Impairment of goodwill (Note 18)	`GoodwillImpairmentLoss`	-	USD	Annual
Impairment of goodwill (Note 18)	`GoodwillImpairmentLoss`	-	USD	Annual
Impairment of goodwill (Note 18)	`GoodwillImpairmentLoss`	$187.00M	USD	Annual
Impairment of equity-method investments (Note 18)	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$1.05B	USD	Annual
Impairment of equity-method investments (Note 18)	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$186.00M	USD	Annual
Impairment of equity-method investments (Note 18)	`EquityMethodInvestmentOtherThanTemporaryImpairment`	$32.00M	USD	Annual
Impairment of certain assets (Note 18)	`OtherAssetImpairmentCharges`	$182.00M	USD	Annual
Impairment of certain assets (Note 18)	`OtherAssetImpairmentCharges`	$1.92B	USD	Annual
Impairment of certain assets (Note 18)	`OtherAssetImpairmentCharges`	$464.00M	USD	Annual
Amortization of stock-based awards	`ShareBasedCompensation`	$57.00M	USD	Annual
Amortization of stock-based awards	`ShareBasedCompensation`	$52.00M	USD	Annual
Amortization of stock-based awards	`ShareBasedCompensation`	$55.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsAndNotesReceivable`	$2.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsAndNotesReceivable`	$36.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsAndNotesReceivable`	$-34.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-5.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$11.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$16.00M	USD	Annual
Other current assets and deferred charges	`IncreaseDecreaseInOtherCurrentAssets`	$-17.00M	USD	Annual
Other current assets and deferred charges	`IncreaseDecreaseInOtherCurrentAssets`	$-21.00M	USD	Annual
Other current assets and deferred charges	`IncreaseDecreaseInOtherCurrentAssets`	$-11.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-7.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-46.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-93.00M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-309.00M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$153.00M	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$23.00M	USD	Annual
Other, including changes in noncurrent assets and liabilities	`OtherOperatingActivitiesCashFlowStatement`	$-176.00M	USD	Annual
Other, including changes in noncurrent assets and liabilities	`OtherOperatingActivitiesCashFlowStatement`	$-5.00M	USD	Annual
Other, including changes in noncurrent assets and liabilities	`OtherOperatingActivitiesCashFlowStatement`	$-144.00M	USD	Annual
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$3.69B	USD	Annual
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$3.50B	USD	Annual
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$3.29B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$3.93B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$3.90B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$767.00M	USD	Annual
Payments of long-term debt	`RepaymentsOfLongTermDebt`	$909.00M	USD	Annual
Payments of long-term debt	`RepaymentsOfLongTermDebt`	$3.20B	USD	Annual
Payments of long-term debt	`RepaymentsOfLongTermDebt`	$3.84B	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$15.00M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$9.00M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$10.00M	USD	Annual
Common dividends paid	`PaymentsOfDividendsCommonStock`	$1.84B	USD	Annual
Common dividends paid	`PaymentsOfDividendsCommonStock`	$1.94B	USD	Annual
Common dividends paid	`PaymentsOfDividendsCommonStock`	$1.39B	USD	Annual
Dividends and distributions paid to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$185.00M	USD	Annual
Dividends and distributions paid to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$591.00M	USD	Annual
Dividends and distributions paid to noncontrolling interests	`PaymentsOfDividendsMinorityInterest`	$124.00M	USD	Annual
Proceeds from Noncontrolling Interests	`ProceedsFromMinorityShareholders`	$15.00M	USD	Annual
Proceeds from Noncontrolling Interests	`ProceedsFromMinorityShareholders`	$36.00M	USD	Annual
Proceeds from Noncontrolling Interests	`ProceedsFromMinorityShareholders`	$7.00M	USD	Annual
Payments for debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$26.00M	USD	Annual
Payments for debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Payments for debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$20.00M	USD	Annual
Other net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-17.00M	USD	Annual
Other net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-13.00M	USD	Annual
Other net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-48.00M	USD	Annual
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.30B	USD	Annual
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-745.00M	USD	Annual
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.08B	USD	Annual
Capital expenditures (1)	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.24B	USD	Annual
Capital expenditures (1)	`PaymentsToAcquirePropertyPlantAndEquipment`	$3.26B	USD	Annual
Capital expenditures (1)	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.11B	USD	Annual
Dispositions net	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$-40.00M	USD	Annual
Dispositions net	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$-7.00M	USD	Annual
Dispositions net	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$-36.00M	USD	Annual
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$52.00M	USD	Annual
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$37.00M	USD	Annual
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$411.00M	USD	Annual
Proceeds from sale of businesses, net of cash divested (Note 3)	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	-	USD	Annual
Proceeds from sale of businesses, net of cash divested (Note 3)	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	$1.30B	USD	Annual
Proceeds from sale of businesses, net of cash divested (Note 3)	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	$-2.00M	USD	Annual
Purchases of businesses, net of cash acquired (Note 3)	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Purchases of businesses, net of cash acquired (Note 3)	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Purchases of businesses, net of cash acquired (Note 3)	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$728.00M	USD	Annual
Proceeds from dispositions of equity-method investments (Note 7)	`ProceedsFromSaleOfEquityMethodInvestments`	$485.00M	USD	Annual
Proceeds from dispositions of equity-method investments (Note 7)	`ProceedsFromSaleOfEquityMethodInvestments`	-	USD	Annual
Proceeds from dispositions of equity-method investments (Note 7)	`ProceedsFromSaleOfEquityMethodInvestments`	-	USD	Annual
Purchases of and contributions to equity-method investments (Note 7)	`PaymentsToAcquireEquityMethodInvestments`	$325.00M	USD	Annual
Purchases of and contributions to equity-method investments (Note 7)	`PaymentsToAcquireEquityMethodInvestments`	$453.00M	USD	Annual
Purchases of and contributions to equity-method investments (Note 7)	`PaymentsToAcquireEquityMethodInvestments`	$1.13B	USD	Annual
Other net	`PaymentsForProceedsFromOtherInvestingActivities`	$37.00M	USD	Annual
Other net	`PaymentsForProceedsFromOtherInvestingActivities`	$-5.00M	USD	Annual
Other net	`PaymentsForProceedsFromOtherInvestingActivities`	$32.00M	USD	Annual
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.73B	USD	Annual
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.83B	USD	Annual
Net cash provided (used) by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.56B	USD	Annual
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$121.00M	USD	Annual
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-147.00M	USD	Annual
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-731.00M	USD	Annual
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$899.00M	USD	Point-in-time
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$142.00M	USD	Point-in-time
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$168.00M	USD	Point-in-time
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$289.00M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$899.00M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$142.00M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$168.00M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$289.00M	USD	Point-in-time
(1) Increases to property, plant, and equipment	`PropertyPlantAndEquipmentAdditions`	$2.02B	USD	Annual
(1) Increases to property, plant, and equipment	`PropertyPlantAndEquipmentAdditions`	$3.02B	USD	Annual
(1) Increases to property, plant, and equipment	`PropertyPlantAndEquipmentAdditions`	$1.16B	USD	Annual
Changes in related accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid`	$-235.00M	USD	Annual
Changes in related accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid`	$-86.00M	USD	Annual
Changes in related accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid`	$-79.00M	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.24B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$3.26B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.11B	USD	Annual

Stockholders Equity 43 line items

Line Item	Tag	Value	Unit	Period
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.60	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.52	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.36	USD	Annual
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.36B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.58B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.18B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.00B	USD	Point-in-time
Net income (loss)	`ProfitLoss`	$198.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$193.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$714.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$71.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$30.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$103.00M	USD	Annual
WPZ Merger (Note 1)	`MinorityInterestDecreaseFromRedemptions`	$-1.86B	USD	Annual
Issuance of preferred stock (Note 16)	`StockIssuedDuringPeriodValueNewIssues`	$35.00M	USD	Annual
Cash dividends common stock	`DividendsCommonStockCash`	$1.84B	USD	Annual
Cash dividends common stock	`DividendsCommonStockCash`	$1.94B	USD	Annual
Cash dividends common stock	`DividendsCommonStockCash`	$1.39B	USD	Annual
Dividends and distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$124.00M	USD	Annual
Dividends and distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$637.00M	USD	Annual
Dividends and distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$185.00M	USD	Annual
Stock-based compensation and related common stock issuances, net of tax	`StockIssuedDuringPeriodValueShareBasedCompensation`	$58.00M	USD	Annual
Stock-based compensation and related common stock issuances, net of tax	`StockIssuedDuringPeriodValueShareBasedCompensation`	$61.00M	USD	Annual
Stock-based compensation and related common stock issuances, net of tax	`StockIssuedDuringPeriodValueShareBasedCompensation`	$51.00M	USD	Annual
Sales of limited partner units of Williams Partners L.P.	`NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest`	$46.00M	USD	Annual
Sales of limited partner units of Williams Partners L.P.	`NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest`	$1.33B	USD	Annual
Changes in ownership of consolidated subsidiaries, net	`ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet`	$141.00M	USD	Annual
Changes in ownership of consolidated subsidiaries, net	`ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesNet`	$-4.00M	USD	Annual
Contributions from noncontrolling interests	`ContributionsFromNoncontrollingInterests`	$7.00M	USD	Annual
Contributions from noncontrolling interests	`ContributionsFromNoncontrollingInterests`	$15.00M	USD	Annual
Contributions from noncontrolling interests	`ContributionsFromNoncontrollingInterests`	$36.00M	USD	Annual
Deconsolidation of subsidiary (Note 7)	`NoncontrollingInterestDecreaseFromDeconsolidation`	$13.00M	USD	Annual
Deconsolidation of subsidiary (Note 7)	`NoncontrollingInterestDecreaseFromDeconsolidation`	$267.00M	USD	Annual
Other	`StockholdersEquityOther`	$14.00M	USD	Annual
Other	`StockholdersEquityOther`	$8.00M	USD	Annual
Other	`StockholdersEquityOther`	$5.00M	USD	Annual
Net increase (decrease) in equity	`StockholdersEquityPeriodIncreaseDecrease`	$-178.00M	USD	Annual
Net increase (decrease) in equity	`StockholdersEquityPeriodIncreaseDecrease`	$-1.78B	USD	Annual
Net increase (decrease) in equity	`StockholdersEquityPeriodIncreaseDecrease`	$367.00M	USD	Annual
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.36B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$14.58B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.18B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.00B	USD	Point-in-time

Comprehensive Income 39 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$198.00M	USD	Annual
Net income (loss)	`ProfitLoss`	$193.00M	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	Annual
Net income (loss)	`ProfitLoss`	$714.00M	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.00M	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	-	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	-	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$-1.00M	USD	Annual
Net unrealized gain (loss) from derivative instruments, net of taxes of $, $, and $1 in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	Annual
Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss) Arising During Period, Tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$27.00M	USD	Annual
Net unrealized gain (loss) from derivative instruments, net of taxes of $, $, and $1 in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-7.00M	USD	Annual
Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss) Arising During Period, Tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-3.00M	USD	Annual
Net unrealized gain (loss) from derivative instruments, net of taxes of $, $, and $1 in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-2.00M	USD	Annual
Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss) Arising During Period, Tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$20.00M	USD	Annual
Reclassifications into earnings of net derivative instruments (gain) loss, net of taxes of $, $, and ($1) in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	Annual
Other Comprehensive Income Loss, Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Included In Net Periodic Benefit Cost (Credit), Tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-7.00M	USD	Annual
Other Comprehensive Income Loss, Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Included In Net Periodic Benefit Cost (Credit), Tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-4.00M	USD	Annual
Reclassifications into earnings of net derivative instruments (gain) loss, net of taxes of $, $, and ($1) in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-8.00M	USD	Annual
Reclassifications into earnings of net derivative instruments (gain) loss, net of taxes of $, $, and ($1) in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.00M	USD	Annual
Other Comprehensive Income Loss, Reclassification Pension And Other Postretirement Benefit Plans Net Gain Loss Included In Net Periodic Benefit Cost (Credit), Tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-11.00M	USD	Annual
Net actuarial gain (loss) arising during the year, net of taxes of ($27), ($20), and $3 in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-6.00M	USD	Annual
Net actuarial gain (loss) arising during the year, net of taxes of ($27), ($20), and $3 in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$59.00M	USD	Annual
Net actuarial gain (loss) arising during the year, net of taxes of ($27), ($20), and $3 in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$81.00M	USD	Annual
Amortization of actuarial (gain) loss and net actuarial loss from settlements included in net periodic benefit cost (credit), net of taxes of ($7), ($4), and ($11) in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-23.00M	USD	Annual
Amortization of actuarial (gain) loss and net actuarial loss from settlements included in net periodic benefit cost (credit), net of taxes of ($7), ($4), and ($11) in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-12.00M	USD	Annual
Amortization of actuarial (gain) loss and net actuarial loss from settlements included in net periodic benefit cost (credit), net of taxes of ($7), ($4), and ($11) in 2020, 2019, and 2018, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-35.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$71.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$30.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$103.00M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$785.00M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$301.00M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$223.00M	USD	Annual
Less: Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-136.00M	USD	Annual
Less: Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-13.00M	USD	Annual
Less: Comprehensive income (loss) attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$346.00M	USD	Annual
Comprehensive Income (loss) attributable to The Williams Companies, Inc.	`ComprehensiveIncomeNetOfTax`	$-123.00M	USD	Annual
Comprehensive Income (loss) attributable to The Williams Companies, Inc.	`ComprehensiveIncomeNetOfTax`	$314.00M	USD	Annual
Comprehensive Income (loss) attributable to The Williams Companies, Inc.	`ComprehensiveIncomeNetOfTax`	$921.00M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.