$XEL
XCEL ENERGY INC Stock $xel

$xel Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000007290322000010 Filed on February 23, 2022

Income Statement

Concept	2021 Q4	2021 Q3	2021 Q2
Revenue	$2.947B	$3.182B	$3.068B
YoY Change	0.0%	0.0%	18.64%
Cost Of Revenue	$488.0M	$97.00M	$227.0M
YoY Change	78.75%	49.23%	141.49%
Gross Profit	$2.867B	$3.370B	$2.841B
YoY Change	7.22%	8.12%	14.0%
Gross Profit Margin	97.29%	105.91%	92.6%
Selling, General & Admin	$163.0M	$134.0M	$127.0M
YoY Change	123.29%	83.56%	86.76%
% of Gross Profit	5.69%	3.98%	4.47%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$574.0M	$584.0M	$552.0M
YoY Change	8.51%	6.96%	8.66%
% of Gross Profit	20.02%	17.33%	19.43%
Operating Expenses	$2.434B	$2.545B	$2.403B
YoY Change	8.27%	10.46%	16.09%
Operating Profit	$426.0M	$813.0M	$438.0M
YoY Change	0.0%	0.0%	3.79%
Interest Expense	-$184.0M	$211.0M	$212.0M
YoY Change	-0.54%	-4.52%	1.92%
% of Operating Profit	-43.19%	25.95%	48.4%
Other Income/Expense, Net	$16.00M	-$3.000M	$3.000M
YoY Change	-5.88%	-400.0%	-40.0%
Pretax Income	$262.0M	$652.0M	$273.0M
YoY Change	1.55%	0.93%	-0.36%
Income Tax	-$53.00M	$43.00M	-$38.00M
% Of Pretax Income	-20.23%	6.6%	-13.92%
Net Earnings	$288.0M	$603.0M	$311.0M
YoY Change	0.0%	0.0%	8.36%
Net Earnings / Revenue	9.77%	18.95%	10.14%
Basic Earnings Per Share	$0.54	$1.15	$0.58
Diluted Earnings Per Share	$0.54	$1.14	$0.58
COMMON SHARES
Basic Shares Outstanding	538.7M shares	539.0M shares	539.0M shares
Diluted Shares Outstanding		539.0M shares	539.0M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$166.0M	$631.0M	$538.0M
YoY Change	28.68%	-28.7%	-66.89%
Cash & Equivalents	$166.0M	$631.0M	$538.0M
Short-Term Investments
Other Short-Term Assets	$2.424B	$2.247B	$2.161B
YoY Change	43.01%	45.81%	46.11%
Inventory	$631.0M	$587.0M	$500.0M
Prepaid Expenses
Receivables	$1.018B	$1.022B	$948.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.239B	$4.487B	$4.147B
YoY Change	29.44%	16.94%	-5.54%
LONG-TERM ASSETS
Property, Plant & Equipment	$45.46B	$44.73B	$44.14B
YoY Change	5.84%	5.93%	7.34%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$208.0M	$204.0M	$189.0M
YoY Change	26.06%	27.5%	21.94%
Other Assets	$431.0M	$339.0M	$395.0M
YoY Change	13.72%	-2.59%	-61.24%
Total Long-Term Assets	$53.61B	$53.03B	$52.63B
YoY Change	5.78%	6.33%	7.27%
TOTAL ASSETS
Total Short-Term Assets	$4.239B	$4.487B	$4.147B
Total Long-Term Assets	$53.61B	$53.03B	$52.63B
Total Assets	$57.85B	$57.52B	$56.78B
YoY Change	7.22%	7.09%	6.22%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.409B	$1.319B	$1.273B
YoY Change	13.9%	-17.67%	7.15%
Accrued Expenses	$414.0M	$424.0M	$427.0M
YoY Change	-0.72%	7.61%	22.35%
Deferred Revenue
YoY Change
Short-Term Debt	$1.005B	$1.747B	$1.745B
YoY Change	72.09%	249.4%	23.76%
Long-Term Debt Due	$604.0M	$624.0M	$24.00M
YoY Change	43.47%	55.61%	-97.82%
Total Short-Term Liabilities	$5.046B	$5.764B	$4.950B
YoY Change	19.04%	31.21%	-9.56%
LONG-TERM LIABILITIES
Long-Term Debt	$21.85B	$21.05B	$21.55B
YoY Change	11.23%	5.46%	10.71%
Other Long-Term Liabilities	$158.0M	$207.0M	$208.0M
YoY Change	-13.66%	16.29%	12.43%
Total Long-Term Liabilities	$158.0M	$207.0M	$208.0M
YoY Change	-13.66%	16.29%	12.43%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.046B	$5.764B	$4.950B
Total Long-Term Liabilities	$158.0M	$207.0M	$208.0M
Total Liabilities	$5.204B	$5.971B	$5.158B
YoY Change	17.68%	30.63%	-8.84%
SHAREHOLDERS EQUITY
Retained Earnings	$6.572B	$6.508B	$6.146B
YoY Change	10.12%	10.08%	10.98%
Common Stock	$9.163B	$8.789B	$8.781B
YoY Change	4.74%	9.75%	9.87%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$15.61B	$15.17B	$14.79B
YoY Change
Total Liabilities & Shareholders Equity	$57.85B	$57.52B	$56.78B
YoY Change	7.22%	7.09%	6.22%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021 Q2
OPERATING ACTIVITIES
Net Income	$288.0M	$603.0M	$311.0M
YoY Change	0.0%	0.0%	8.36%
Depreciation, Depletion And Amortization	$574.0M	$584.0M	$552.0M
YoY Change	8.51%	6.96%	8.66%
Cash From Operating Activities	$610.0M	$1.090B	$625.0M
YoY Change	-9.5%	6.24%	30.48%
INVESTING ACTIVITIES
Capital Expenditures	-$1.212B	-$1.065B	-$943.0M
YoY Change	-28.2%	-4.23%	-1.98%
Acquisitions
YoY Change
Other Investing Activities	-$10.00M	$202.0M	-$224.0M
YoY Change	-67.74%	-69.9%	1766.67%
Cash From Investing Activities	-$1.222B	-$863.0M	-$1.167B
YoY Change	-28.91%	95.69%	19.82%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	147.0M	-134.0M	41.00M
YoY Change	-49.13%	-89.96%	-97.82%
NET CHANGE
Cash From Operating Activities	610.0M	1.090B	625.0M
Cash From Investing Activities	-1.222B	-863.0M	-1.167B
Cash From Financing Activities	147.0M	-134.0M	41.00M
Net Change In Cash	-465.0M	93.00M	-501.0M
YoY Change	-38.49%	-112.42%	-136.04%
FREE CASH FLOW
Cash From Operating Activities	$610.0M	$1.090B	$625.0M
Capital Expenditures	-$1.212B	-$1.065B	-$943.0M
Free Cash Flow	$1.822B	$2.155B	$1.568B
YoY Change	-22.86%	0.8%	8.81%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Registrant Name EntityRegistrantName	XCEL ENERGY INC
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000072903
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2811000000	USD
CY2021Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2586000000	USD
CY2021Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3182000000	USD
CY2021Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2947000000	USD
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	455000000	USD
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	422000000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	813000000	USD
CY2021Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	426000000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	295000000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	287000000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	603000000	USD
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	288000000	USD
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2021Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2020Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2811000000	USD
CY2020Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2586000000	USD
CY2020Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3182000000	USD
CY2020Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2947000000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	455000000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	422000000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	813000000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	426000000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	295000000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	287000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	603000000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	288000000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-3034
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MN
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	41-0448030
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	414 Nicollet Mall
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Minneapolis
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	MN
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	55401
CY2021	dei	City Area Code CityAreaCode	612
CY2021	dei	Local Phone Number LocalPhoneNumber	330-5500
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $2.50 par value per share
CY2021	dei	Trading Symbol TradingSymbol	XEL
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	35463594471	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	544213730	shares
CY2021	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2021	dei	Auditor Location AuditorLocation	Minneapolis, Minnesota
CY2021	xel	Regulated Operating Revenue Electric RegulatedOperatingRevenueElectric	11205000000	USD
CY2020	xel	Regulated Operating Revenue Electric RegulatedOperatingRevenueElectric	9802000000	USD
CY2019	xel	Regulated Operating Revenue Electric RegulatedOperatingRevenueElectric	9575000000	USD
CY2021	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	2132000000	USD
CY2020	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	1636000000	USD
CY2019	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	1868000000	USD
CY2021	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	94000000	USD
CY2020	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	88000000	USD
CY2019	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	86000000	USD
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	13431000000	USD
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	11526000000	USD
CY2019	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	11529000000	USD
CY2021	xel	Electric Fueland Purchased Power ElectricFuelandPurchasedPower	4733000000	USD
CY2020	xel	Electric Fueland Purchased Power ElectricFuelandPurchasedPower	3512000000	USD
CY2019	xel	Electric Fueland Purchased Power ElectricFuelandPurchasedPower	3510000000	USD
CY2021	xel	Costofnatural Gas Soldand Transported CostofnaturalGasSoldandTransported	1081000000	USD
CY2020	xel	Costofnatural Gas Soldand Transported CostofnaturalGasSoldandTransported	689000000	USD
CY2019	xel	Costofnatural Gas Soldand Transported CostofnaturalGasSoldandTransported	918000000	USD
CY2021	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	38000000	USD
CY2020	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	37000000	USD
CY2019	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	40000000	USD
CY2021	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	2321000000	USD
CY2020	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	2324000000	USD
CY2019	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	2338000000	USD
CY2021	xel	Conservationand Demand Side Management Program Expenses ConservationandDemandSideManagementProgramExpenses	304000000	USD
CY2020	xel	Conservationand Demand Side Management Program Expenses ConservationandDemandSideManagementProgramExpenses	288000000	USD
CY2019	xel	Conservationand Demand Side Management Program Expenses ConservationandDemandSideManagementProgramExpenses	285000000	USD
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2121000000	USD
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1948000000	USD
CY2019	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1765000000	USD
CY2021	us-gaap	Taxes Other TaxesOther	630000000	USD
CY2020	us-gaap	Taxes Other TaxesOther	612000000	USD
CY2019	us-gaap	Taxes Other TaxesOther	569000000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	11228000000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	9410000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	2116000000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	9425000000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	2203000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	2104000000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	5000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-6000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	16000000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	62000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	40000000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	39000000	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	73000000	USD
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	115000000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	77000000	USD
CY2021	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	29000000	USD
CY2020	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	28000000	USD
CY2019	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	26000000	USD
CY2021	us-gaap	Interest Expense InterestExpense	842000000	USD
CY2020	us-gaap	Interest Expense InterestExpense	840000000	USD
CY2019	us-gaap	Interest Expense InterestExpense	773000000	USD
CY2021	xel	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Debt PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfDebt	26000000	USD
CY2020	xel	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Debt PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfDebt	42000000	USD
CY2019	xel	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Debt PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfDebt	37000000	USD
CY2021	us-gaap	Interest And Debt Expense InterestAndDebtExpense	816000000	USD
CY2020	us-gaap	Interest And Debt Expense InterestAndDebtExpense	798000000	USD
CY2019	us-gaap	Interest And Debt Expense InterestAndDebtExpense	736000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1527000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1467000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1500000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-70000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	128000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1597000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1473000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1372000000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	539000000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	527000000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	519000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	540000000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	528000000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	520000000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.96
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.96
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.79
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.64
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1597000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1473000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1372000000	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-2000000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-5000000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	3000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	3000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	8000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	10000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	3000000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	1000000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-3000000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-8000000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	4000000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-10000000	USD
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CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	5000000	USD
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CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18000000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1615000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1473000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1355000000	USD
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CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1785000000	USD
CY2021	xel	Nuclear Fuel Amortization NuclearFuelAmortization	114000000	USD
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CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	143000000	USD
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	73000000	USD
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CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	77000000	USD
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CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	40000000	USD
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CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	42000000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	42000000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	40000000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	60000000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	60000000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	42000000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	31000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	73000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	58000000	USD
CY2021	xel	Gain Loss On Hedging And Derivative Transactions GainLossOnHedgingAndDerivativeTransactions	57000000	USD
CY2020	xel	Gain Loss On Hedging And Derivative Transactions GainLossOnHedgingAndDerivativeTransactions	27000000	USD
CY2019	xel	Gain Loss On Hedging And Derivative Transactions GainLossOnHedgingAndDerivativeTransactions	-45000000	USD
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	164000000	USD
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	154000000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	20000000	USD
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CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	126000000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	80000000	USD
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CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	45000000	USD
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CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-33000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-12000000	USD
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	973000000	USD
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CY2019	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	66000000	USD
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CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-135000000	USD
CY2020	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-125000000	USD
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CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-83000000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-137000000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	40000000	USD
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CY2019	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	0	USD
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	757000000	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1398000000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	995000000	USD
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CY2019	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	975000000	USD
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CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	98000000	USD
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CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4740000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4343000000	USD
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CY2021	us-gaap	Stock Issued1 StockIssued1	60000000	USD
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CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	196000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	197000000	USD
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	306000000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	666000000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1146000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1344000000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	158000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	183000000	USD
CY2021Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	15414000000	USD
CY2020Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	15498000000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	21779000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	19645000000	USD
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
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CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	537438394	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	1360000000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1344000000	USD
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	7803000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	7404000000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	6572000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5968000000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-123000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-141000000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	15612000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	14575000000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	57851000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	53957000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12222000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1372000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1372000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-17000000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	846000000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	494000000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13239000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1473000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1473000000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	909000000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	764000000	USD
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CY2020	xel	Credit Losses Topic326 Asc Topic326 CreditLossesTopic326ASCTopic326	-2000000	USD
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	1597000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1597000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	18000000	USD
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	989000000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	403000000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8000000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15612000000	USD
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CY2021	xel	Depreciation Expense Expressed As Percentage Of Average Depreciable Property DepreciationExpenseExpressedAsPercentageOfAverageDepreciableProperty	0.035
CY2020	xel	Depreciation Expense Expressed As Percentage Of Average Depreciable Property DepreciationExpenseExpressedAsPercentageOfAverageDepreciableProperty	0.034
CY2019	xel	Depreciation Expense Expressed As Percentage Of Average Depreciable Property DepreciationExpenseExpressedAsPercentageOfAverageDepreciableProperty	0.033
CY2021Q4	xel	Studies Time Periods StudiesTimePeriods	3	USD
CY2021Q4	xel	Maturity Period MaturityPeriod	3	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	106000000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	79000000	USD
CY2021Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	631000000	USD
CY2020Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	535000000	USD
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CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	62209000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	59296000000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	17060000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	16657000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	45457000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	42950000000	USD
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1106000000	USD
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2738000000	USD
CY2020Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	640000000	USD
CY2020Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2737000000	USD
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	271000000	USD
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5405000000	USD
CY2020Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	311000000	USD
CY2020Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	5302000000	USD
CY2021Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	1718000000	USD
CY2020Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	812000000	USD
CY2021Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	75000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	601000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1150000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	552000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1102000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	501000000	USD
CY2021Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	184000000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	167000000	USD
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CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
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CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	544025269	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	537438394	shares
CY2021	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	13000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	47000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	41000000	USD
CY2021Q4	xel	Unrecognized Tax Benefits That Would Not Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate	11000000	USD
CY2020Q4	xel	Unrecognized Tax Benefits That Would Not Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate	11000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	58000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	52000000	USD
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	52000000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44000000	USD
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	37000000	USD
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CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	9000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	10000000	USD
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CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	35000000	USD
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CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	34000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	58000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	52000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	44000000	USD
CY2021Q4	xel	Tax Benefits Associated With Nol And Tax Credit Carryforwards TaxBenefitsAssociatedWithNolAndTaxCreditCarryforwards	36000000	USD
CY2020Q4	xel	Tax Benefits Associated With Nol And Tax Credit Carryforwards TaxBenefitsAssociatedWithNolAndTaxCreditCarryforwards	31000000	USD
CY2021Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	28000000	USD
CY2021Q1	xel	Payable For Interest Related To Unrecognized Tax Benefits PayableForInterestRelatedToUnrecognizedTaxBenefits	-3000000	USD
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CY2019Q1	xel	Payable For Interest Related To Unrecognized Tax Benefits PayableForInterestRelatedToUnrecognizedTaxBenefits	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-3000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2021Q4	xel	Payable For Interest Related To Unrecognized Tax Benefits PayableForInterestRelatedToUnrecognizedTaxBenefits	-3000000	USD
CY2020Q4	xel	Payable For Interest Related To Unrecognized Tax Benefits PayableForInterestRelatedToUnrecognizedTaxBenefits	-3000000	USD
CY2019Q4	xel	Payable For Interest Related To Unrecognized Tax Benefits PayableForInterestRelatedToUnrecognizedTaxBenefits	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2021Q4	xel	Federal Nol Carryforward FederalNOLCarryforward	765000000	USD
CY2020Q4	xel	Federal Nol Carryforward FederalNOLCarryforward	0	USD
CY2021Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	1172000000	USD
CY2020Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	791000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	1648000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	839000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	4000000	USD
CY2021Q4	xel	State Tax Credit Carryforward Net Of Federal Detirment StateTaxCreditCarryforwardNetOfFederalDetirment	89000000	USD
CY2020Q4	xel	State Tax Credit Carryforward Net Of Federal Detirment StateTaxCreditCarryforwardNetOfFederalDetirment	89000000	USD
CY2021Q4	xel	Valuation Allowances For State Credit Carryforwards Net Of Federal Benefit ValuationAllowancesForStateCreditCarryforwardsNetOfFederalBenefit	-64000000	USD
CY2020Q4	xel	Valuation Allowances For State Credit Carryforwards Net Of Federal Benefit ValuationAllowancesForStateCreditCarryforwardsNetOfFederalBenefit	-64000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.050
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.049
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.049
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.234
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.157
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.094
CY2021	xel	Effective Income Tax Rate Reconciliation Other Regulatory Items Percent EffectiveIncomeTaxRateReconciliationOtherRegulatoryItemsPercent	-0.062
CY2020	xel	Effective Income Tax Rate Reconciliation Other Regulatory Items Percent EffectiveIncomeTaxRateReconciliationOtherRegulatoryItemsPercent	-0.076
CY2019	xel	Effective Income Tax Rate Reconciliation Other Regulatory Items Percent EffectiveIncomeTaxRateReconciliationOtherRegulatoryItemsPercent	-0.058
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.011
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.012
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.017
CY2021Q4	xel	Effective Income Tax Rate Reconciliation Net Operating Loss Carryback Percent EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackPercent	0
CY2020	xel	Effective Income Tax Rate Reconciliation Net Operating Loss Carryback Percent EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackPercent	-0.009
CY2019	xel	Effective Income Tax Rate Reconciliation Net Operating Loss Carryback Percent EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackPercent	0
CY2021	xel	Effective Income Tax Rate Reconcilation Change In Unrecognized Tax Benefits Percent EffectiveIncomeTaxRateReconcilationChangeInUnrecognizedTaxBenefitsPercent	0.004
CY2020	xel	Effective Income Tax Rate Reconcilation Change In Unrecognized Tax Benefits Percent EffectiveIncomeTaxRateReconcilationChangeInUnrecognizedTaxBenefitsPercent	0.005
CY2019	xel	Effective Income Tax Rate Reconcilation Change In Unrecognized Tax Benefits Percent EffectiveIncomeTaxRateReconcilationChangeInUnrecognizedTaxBenefitsPercent	0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.014
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.046
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.004
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.085
CY2021	xel	Deferred Tax Expense Benefit Excluding Selected Items DeferredTaxExpenseBenefitExcludingSelectedItems	148000000	USD
CY2020	xel	Deferred Tax Expense Benefit Excluding Selected Items DeferredTaxExpenseBenefitExcludingSelectedItems	237000000	USD
CY2019	xel	Deferred Tax Expense Benefit Excluding Selected Items DeferredTaxExpenseBenefitExcludingSelectedItems	344000000	USD
CY2021	xel	Amortization And Adjustments To Deferred Income Taxes On Income Tax Regulatory Assets And Liabilities AmortizationAndAdjustmentsToDeferredIncomeTaxesOnIncomeTaxRegulatoryAssetsAndLiabilities	-221000000	USD
CY2020	xel	Amortization And Adjustments To Deferred Income Taxes On Income Tax Regulatory Assets And Liabilities AmortizationAndAdjustmentsToDeferredIncomeTaxesOnIncomeTaxRegulatoryAssetsAndLiabilities	-247000000	USD
CY2019	xel	Amortization And Adjustments To Deferred Income Taxes On Income Tax Regulatory Assets And Liabilities AmortizationAndAdjustmentsToDeferredIncomeTaxesOnIncomeTaxRegulatoryAssetsAndLiabilities	-206000000	USD
CY2021	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	-6000000	USD
CY2020	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	2000000	USD
CY2019	us-gaap	Income Tax Expense Benefit Intraperiod Tax Allocation IncomeTaxExpenseBenefitIntraperiodTaxAllocation	5000000	USD
CY2021Q4	xel	Deferred Tax Assets Tax Deferred Benefit DeferredTaxAssetsTaxDeferredBenefit	79000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense DeferredTaxAssetsTaxDeferredExpense	-8000000	USD
CY2019Q4	xel	Deferred Tax Assets Tax Deferred Benefit DeferredTaxAssetsTaxDeferredBenefit	-143000000	USD
CY2021Q4	xel	Deferred Fuel Costs DeferredFuelCosts	262000000	USD
CY2020Q4	xel	Deferred Fuel Costs DeferredFuelCosts	-6000000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	421000	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	411000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	483000	shares
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CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	392000	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	442000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	464000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	27000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	29000000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	29000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	780000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	55.68
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	421000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	66.03
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	146000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	61.76
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	392000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	48.91
CY2021	xel	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Dividend Equivalents In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDividendEquivalentsInPeriod	32000	shares
CY2021	xel	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Dividend Equivalent In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDividendEquivalentInPeriodWeightedAverageGrantDateFairValue	58.00
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	695000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	64.59
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31000000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	73000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	58000000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	19000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	15000000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	28000000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	51000000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y7M6D
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	539000000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	527000000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	519000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	540000000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	528000000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	520000000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	300000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	1100000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	1300000	shares
CY2021	us-gaap	Unrealized Gain On Securities UnrealizedGainOnSecurities	1300000000	USD
CY2020	us-gaap	Unrealized Gain On Securities UnrealizedGainOnSecurities	981000000	USD
CY2021	us-gaap	Unrealized Loss On Securities UnrealizedLossOnSecurities	7000000	USD
CY2020	us-gaap	Unrealized Loss On Securities UnrealizedLossOnSecurities	5000000	USD
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	208000000	USD
CY2021Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	164000000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	165000000	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	154000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	4000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	149000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	208000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	314000000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	675000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-85000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-80000000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-60000000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	4000000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-10000000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-23000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	6000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	5000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	3000000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-75000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-85000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-80000000	USD
CY2021Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2020Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2019Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2021Q4	xel	Derivative Gross Liability Position Aggregate Fair Value DerivativeGrossLiabilityPositionAggregateFairValue	3000000	USD
CY2020Q4	xel	Derivative Gross Liability Position Aggregate Fair Value DerivativeGrossLiabilityPositionAggregateFairValue	4000000	USD
CY2021Q4	xel	Derivative Gross Liability With Cross Default Position Aggregate Fair Value DerivativeGrossLiabilityWithCrossDefaultPositionAggregateFairValue	64000000	USD
CY2020Q4	xel	Derivative Gross Liability With Cross Default Position Aggregate Fair Value DerivativeGrossLiabilityWithCrossDefaultPositionAggregateFairValue	60000000	USD
CY2021Q4	xel	Collateral Already Posted Adequate Assurance Clauses Aggregate Fair Value CollateralAlreadyPostedAdequateAssuranceClausesAggregateFairValue	0	USD
CY2020Q4	xel	Collateral Already Posted Adequate Assurance Clauses Aggregate Fair Value CollateralAlreadyPostedAdequateAssuranceClausesAggregateFairValue	0	USD
CY2021Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	0	USD
CY2020Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	15000000	USD
CY2021Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	30000000	USD
CY2020Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	6000000	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	22380000000	USD
CY2021Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	25232000000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	20066000000	USD
CY2020Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	24412000000	USD
CY2021Q4	xel	Annual Interest Crediting Rates AnnualInterestCreditingRates	2.03	USD
CY2020Q4	xel	Annual Interest Crediting Rates AnnualInterestCreditingRates	1.89	USD
CY2019Q4	xel	Annual Interest Crediting Rates AnnualInterestCreditingRates	2.82	USD
CY2021Q4	xel	Assets Transferred AssetsTransferred	0	USD
CY2020Q4	xel	Assets Transferred AssetsTransferred	0	USD
CY2021	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	197000000	USD
CY2020	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	0	USD
CY2020Q4	xel	Plan Ammendment PlanAmmendment	0	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	43000000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	42000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	39000000	USD
CY2021	xel	Breckenridge Litigation BreckenridgeLitigation	3000000	USD
CY2021Q4	xel	Winter Storm Uri Costs WinterStormUriCosts	179000000	USD
CY2021Q1	xel	Amount Mpuc Previously Disallowed Related To Sherco Outage AmountMPUCPreviouslyDisallowedRelatedToShercoOutage	22000000	USD
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	36000000	USD
CY2021	xel	Settlement Agreement Payment Lubbock Power And Light Contract SettlementAgreementPaymentLubbockPowerAndLightContract	78000000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2884000000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	107000000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	138000000	USD
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	22000000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	3151000000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	0	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2701000000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	149000000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	8000000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	134000000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-92000000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2884000000	USD
CY2021Q4	xel	Indeterminate Costs Incurred Asset Retirement Obligation Due To Asbestos IndeterminateCostsIncurredAssetRetirementObligationDueToAsbestos	0	USD
CY2020	xel	Approvedannualaccrualfordecommissioningcosts Approvedannualaccrualfordecommissioningcosts	14000000	USD
CY2021	xel	Approvedannualaccrualfordecommissioningcosts Approvedannualaccrualfordecommissioningcosts	14000000	USD
CY2019	xel	Approvedannualaccrualfordecommissioningcosts Approvedannualaccrualfordecommissioningcosts	14000000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2021Q4	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P12M
CY2021Q4	xel	Operating Lease Rightof Use Asset Gross OperatingLeaseRightofUseAssetGross	1881000000	USD
CY2020Q4	xel	Operating Lease Rightof Use Asset Gross OperatingLeaseRightofUseAssetGross	1862000000	USD
CY2021Q4	xel	Operating Lease Rightof Use Asset Accumulated Depreciation OperatingLeaseRightofUseAssetAccumulatedDepreciation	590000000	USD
CY2020Q4	xel	Operating Lease Rightof Use Asset Accumulated Depreciation OperatingLeaseRightofUseAssetAccumulatedDepreciation	372000000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1291000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1490000000	USD
CY2021Q4	xel	Finance Lease Rightof Use Asset Gross FinanceLeaseRightofUseAssetGross	222000000	USD
CY2020Q4	xel	Finance Lease Rightof Use Asset Gross FinanceLeaseRightofUseAssetGross	222000000	USD
CY2021Q4	xel	Finance Lease Rightof Use Asset Accumulated Depreciation FinanceLeaseRightofUseAssetAccumulatedDepreciation	97000000	USD
CY2020Q4	xel	Finance Lease Rightof Use Asset Accumulated Depreciation FinanceLeaseRightofUseAssetAccumulatedDepreciation	90000000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	125000000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	132000000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5000000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	287000000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	264000000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	255000000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	7000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	7000000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	6000000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	17000000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	18000000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	19000000	USD
CY2021	xel	Finance Lease Cost FinanceLeaseCost	24000000	USD
CY2020	xel	Finance Lease Cost FinanceLeaseCost	25000000	USD
CY2019	xel	Finance Lease Cost FinanceLeaseCost	25000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5000000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	256000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	12000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	247000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	12000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	231000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	12000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	205000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	10000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	158000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	9000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	497000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	187000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1594000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	242000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	243000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	170000000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1351000000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	72000000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	205000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3000000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1146000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	69000000	USD
CY2021Q4	xel	Weighted Average Remaining Lease Term Operating WeightedAverageRemainingLeaseTermOperating	8.9	USD
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P36Y1M6D
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	11526000000	USD
CY2019	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	11529000000	USD
CY2021	xel	Technology Agreement Expiration TechnologyAgreementExpiration	2022
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	103000000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	110000000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	101000000	USD
CY2021Q4	xel	Assets Held As Collateral For Guarantor Obligations AssetsHeldAsCollateralForGuarantorObligations	0	USD
CY2020Q4	xel	Assets Held As Collateral For Guarantor Obligations AssetsHeldAsCollateralForGuarantorObligations	0	USD
CY2021Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	60000000	USD
CY2020Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	62000000	USD
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	208000000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	165000000	USD
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	13431000000	USD
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2121000000	USD
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1948000000	USD
CY2019	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	1765000000	USD
CY2021	us-gaap	Interest And Debt Expense InterestAndDebtExpense	816000000	USD
CY2020	us-gaap	Interest And Debt Expense InterestAndDebtExpense	798000000	USD
CY2019	us-gaap	Interest And Debt Expense InterestAndDebtExpense	736000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-70000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	128000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1597000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1473000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1372000000	USD
CY2021	dei	Auditor Firm AuditorFirmId	34
CY2021	dei	Auditor Firm AuditorFirmId	34
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	1000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	3000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-1000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-7000000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	539000000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	527000000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	519000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	540000000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	528000000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	520000000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.96
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.79
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.96
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.79
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.64
CY2021	xel	Investments In Utility Money Pool Arrangement InvestmentsInUtilityMoneyPoolArrangement	-57000000	USD
CY2020	xel	Investments In Utility Money Pool Arrangement InvestmentsInUtilityMoneyPoolArrangement	18000000	USD
CY2019	xel	Investments In Utility Money Pool Arrangement InvestmentsInUtilityMoneyPoolArrangement	39000000	USD

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$XEL
XCEL ENERGY INC Stock $xel

2021 Q4 Form 10-K Financial Statement

#000007290322000010 Filed on February 23, 2022

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$XEL XCEL ENERGY INC Stock $xel

2021 Q4 Form 10-K Financial Statement

#000007290322000010 Filed on February 23, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$XEL
XCEL ENERGY INC Stock $xel