$CMS
CMS ENERGY CORP Stock $cms

$cms Overview Financials Valuation SEC Filings Company Website

2019 Q1 Form 10-K Financial Statement

#000081115619000003 Filed on February 05, 2019

Income Statement

Concept	2019 Q1	2017 Q4	2017 Q3
Revenue	$2.059B	$1.778B	$1.527B
YoY Change	5.43%	8.41%	-3.78%
Cost Of Revenue	$800.0M	$649.0M	$494.0M
YoY Change	2.3%	11.13%	-5.18%
Gross Profit	$1.259B	$1.129B	$1.033B
YoY Change	7.51%	6.91%	-3.1%
Gross Profit Margin	61.15%	63.5%	67.65%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$298.0M	$229.0M	$193.0M
YoY Change	6.81%	7.01%	5.46%
% of Gross Profit	23.67%	20.28%	18.68%
Operating Expenses	$900.0M	$750.0M	$703.0M
YoY Change	11.39%	-3.35%	1.74%
Operating Profit	$359.0M	$379.0M	$330.0M
YoY Change	-1.1%	35.36%	-12.0%
Interest Expense	$121.0M	-$103.0M	$111.0M
YoY Change	9.01%	-4.63%	-206.73%
% of Operating Profit	33.7%	-27.18%	33.64%
Other Income/Expense, Net	$23.00M	-$54.00M	$10.00M
YoY Change	-20.69%	12.5%	0.0%
Pretax Income	$261.0M	$222.0M	$229.0M
YoY Change	-7.12%	79.03%	-18.51%
Income Tax	$48.00M	$76.00M	$57.00M
% Of Pretax Income	18.39%	34.23%	24.89%
Net Earnings	$213.0M	-$3.000M	$172.0M
YoY Change	-11.62%	-103.9%	-7.53%
Net Earnings / Revenue	10.34%	-0.17%	11.26%
Basic Earnings Per Share	$0.75	-$0.01	$0.61
Diluted Earnings Per Share	$0.75	-$0.01	$0.61
COMMON SHARES
Basic Shares Outstanding	283.4M shares
Diluted Shares Outstanding	283.6M shares		281.6M shares

Balance Sheet

Concept	2019 Q1	2017 Q4	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$234.0M	$182.0M	$142.0M
YoY Change	20.0%	-22.55%	-58.11%
Cash & Equivalents	$234.0M	$182.0M	$173.0M
Short-Term Investments
Other Short-Term Assets	$97.00M	$83.00M	$321.0M
YoY Change	-72.21%	-77.38%	10.69%
Inventory	$442.0M	$672.0M	$787.0M
Prepaid Expenses
Receivables	$997.0M	$1.032B	$643.0M
Other Receivables	$250.0M	$200.0M	$228.0M
Total Short-Term Assets	$2.376B	$2.475B	$2.121B
YoY Change	7.66%	8.55%	-3.5%
LONG-TERM ASSETS
Property, Plant & Equipment	$18.32B	$16.76B	$16.44B
YoY Change	8.35%	6.66%	6.48%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$62.00M	$64.00M	$71.00M
YoY Change	-7.46%	-1.54%	4.41%
Other Assets	$538.0M	$799.0M	$2.307B
YoY Change	-78.54%	-67.31%	14.04%
Total Long-Term Assets	$22.42B	$20.58B	$20.00B
YoY Change	8.5%	6.37%	7.27%
TOTAL ASSETS
Total Short-Term Assets	$2.376B	$2.475B	$2.121B
Total Long-Term Assets	$22.42B	$20.58B	$20.00B
Total Assets	$24.79B	$23.05B	$22.12B
YoY Change	8.42%	6.6%	6.13%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$544.0M	$725.0M	$632.0M
YoY Change	0.74%	18.85%	15.33%
Accrued Expenses	$144.0M	$136.0M	$114.0M
YoY Change	17.07%	14.29%	4.59%
Deferred Revenue
YoY Change
Short-Term Debt	$30.00M	$170.0M	$230.0M
YoY Change		-57.29%	206.67%
Long-Term Debt Due	$821.0M	$1.081B	$980.0M
YoY Change	-36.16%	22.01%	-2.49%
Total Short-Term Liabilities	$2.106B	$2.784B	$2.261B
YoY Change	-15.15%	4.86%	9.28%
LONG-TERM LIABILITIES
Long-Term Debt	$11.11B	$9.123B	$9.121B
YoY Change	22.27%	4.26%	3.27%
Other Long-Term Liabilities	$345.0M	$307.0M	$3.665B
YoY Change	-93.55%	-91.57%	7.32%
Total Long-Term Liabilities	$17.79B	$15.79B	$12.79B
YoY Change	23.32%	27.43%	4.4%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.106B	$2.784B	$2.261B
Total Long-Term Liabilities	$17.79B	$15.79B	$12.79B
Total Liabilities	$19.90B	$18.57B	$17.59B
YoY Change	8.9%	6.93%	6.04%
SHAREHOLDERS EQUITY
Retained Earnings	-$166.0M	-$531.0M
YoY Change
Common Stock	$5.090B	$5.022B
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$4.858B	$4.441B	$4.535B
YoY Change
Total Liabilities & Shareholders Equity	$24.79B	$23.05B	$22.12B
YoY Change	8.42%	6.6%	6.13%

Cashflow Statement

Concept	2019 Q1	2017 Q4	2017 Q3
OPERATING ACTIVITIES
Net Income	$213.0M	-$3.000M	$172.0M
YoY Change	-11.62%	-103.9%	-7.53%
Depreciation, Depletion And Amortization	$298.0M	$229.0M	$193.0M
YoY Change	6.81%	7.01%	5.46%
Cash From Operating Activities	$617.0M	$506.0M	$80.00M
YoY Change	-12.85%	30.41%	-42.86%
INVESTING ACTIVITIES
Capital Expenditures	$481.0M	-$457.0M	-$462.0M
YoY Change	13.98%	2.01%	13.51%
Acquisitions
YoY Change
Other Investing Activities	$27.00M	-$57.00M	-$86.00M
YoY Change	-6.9%	-17.39%	6.17%
Cash From Investing Activities	-$675.0M	-$514.0M	-$548.0M
YoY Change	48.03%	-0.58%	12.3%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$3.000M
YoY Change	0.0%
Debt Paid & Issued, Net	$790.0M
YoY Change	338.89%
Cash From Financing Activities	$150.0M	39.00M	200.0M
YoY Change	-165.5%	116.67%	-35.28%
NET CHANGE
Cash From Operating Activities	$617.0M	506.0M	80.00M
Cash From Investing Activities	-$675.0M	-514.0M	-548.0M
Cash From Financing Activities	$150.0M	39.00M	200.0M
Net Change In Cash	$92.00M	31.00M	-268.0M
YoY Change	300.0%	-127.93%	587.18%
FREE CASH FLOW
Cash From Operating Activities	$617.0M	$506.0M	$80.00M
Capital Expenditures	$481.0M	-$457.0M	-$462.0M
Free Cash Flow	$136.0M	$963.0M	$542.0M
YoY Change	-52.45%	15.19%	-0.91%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017Q4	cms	Accrued Rate Refunds AccruedRateRefunds	33000000	USD
CY2018Q4	cms	Accrued Rate Refunds AccruedRateRefunds	4000000	USD
CY2018	cms	Alternative Minimum Tax Recovery Period AlternativeMinimumTaxRecoveryPeriod	P4Y
CY2018	cms	Alternative Revenue Programs AlternativeRevenuePrograms	39000000	USD
CY2018Q4	cms	Amount Available For Dividend Distribution AmountAvailableForDividendDistribution	4800000000	USD
CY2017Q4	cms	Assets Noncurrent Other Than Property Plant And Equipment AssetsNoncurrentOtherThanPropertyPlantAndEquipment	3814000000	USD
CY2018Q4	cms	Assets Noncurrent Other Than Property Plant And Equipment AssetsNoncurrentOtherThanPropertyPlantAndEquipment	3935000000	USD
CY2016	cms	Civic And Political Expenditures CivicAndPoliticalExpenditures	21000000	USD
CY2017	cms	Civic And Political Expenditures CivicAndPoliticalExpenditures	27000000	USD
CY2018	cms	Civic And Political Expenditures CivicAndPoliticalExpenditures	6000000	USD
CY2018	cms	Deferred Compensation Arrangements Plan Term DeferredCompensationArrangementsPlanTerm	P10Y
CY2017Q4	cms	Deferred Property Taxes DeferredPropertyTaxes	257000000	USD
CY2018Q4	cms	Deferred Property Taxes DeferredPropertyTaxes	279000000	USD
CY2018Q4	cms	Deferred Tax Asset Alternative Minimum Tax Credit Reclassification DeferredTaxAssetAlternativeMinimumTaxCreditReclassification	68000000	USD
CY2018Q4	cms	Deferred Tax Assets Net Operating Loss And Tax Credit Carryforwards DeferredTaxAssetsNetOperatingLossAndTaxCreditCarryforwards	385000000	USD
CY2017Q4	cms	Deferred Tax Assets Operating Loss And Credit Carryforwards DeferredTaxAssetsOperatingLossAndCreditCarryforwards	453000000	USD
CY2018Q4	cms	Deferred Tax Assets Operating Loss And Credit Carryforwards DeferredTaxAssetsOperatingLossAndCreditCarryforwards	385000000	USD
CY2017Q4	cms	Deferred Tax Liabilities Postretirement Benefits DeferredTaxLiabilitiesPostretirementBenefits	96000000	USD
CY2018Q4	cms	Deferred Tax Liabilities Postretirement Benefits DeferredTaxLiabilitiesPostretirementBenefits	165000000	USD
CY2016	cms	Donations Donations	23000000	USD
CY2017	cms	Donations Donations	31000000	USD
CY2018	cms	Donations Donations	13000000	USD
CY2016	cms	Effective Income Tax Rate Reconciliation Tcja True Up Amt Credits EffectiveIncomeTaxRateReconciliationTCJATrueUpAMTCredits	0	USD
CY2017	cms	Effective Income Tax Rate Reconciliation Tcja True Up Amt Credits EffectiveIncomeTaxRateReconciliationTCJATrueUpAMTCredits	-148000000	USD
CY2018	cms	Effective Income Tax Rate Reconciliation Tcja True Up Amt Credits EffectiveIncomeTaxRateReconciliationTCJATrueUpAMTCredits	4000000	USD
CY2016	cms	Fee Income FeeIncome	6000000	USD
CY2017	cms	Fee Income FeeIncome	0	USD
CY2018	cms	Fee Income FeeIncome	0	USD
CY2018	cms	Financing Income FinancingIncome	172000000	USD
CY2016	cms	Income Tax Reconciliation Regulatory Tax Expense Benefit IncomeTaxReconciliationRegulatoryTaxExpenseBenefit	-39000000	USD
CY2017	cms	Income Tax Reconciliation Regulatory Tax Expense Benefit IncomeTaxReconciliationRegulatoryTaxExpenseBenefit	-39000000	USD
CY2018	cms	Income Tax Reconciliation Regulatory Tax Expense Benefit IncomeTaxReconciliationRegulatoryTaxExpenseBenefit	-39000000	USD
CY2017	cms	Increase Decrease To Deferred Income Tax Expense Related To Tax Rate Changes IncreaseDecreaseToDeferredIncomeTaxExpenseRelatedToTaxRateChanges	148000000	USD
CY2017	cms	Increase Decrease To Deferred Tax Liabilities Related To Tax Rate Changes IncreaseDecreaseToDeferredTaxLiabilitiesRelatedToTaxRateChanges	1300000000	USD
CY2017Q4	cms	Nonqualified Deferred Compensation Plan Assets Fair Value Disclosure NonqualifiedDeferredCompensationPlanAssetsFairValueDisclosure	14000000	USD
CY2018Q4	cms	Nonqualified Deferred Compensation Plan Assets Fair Value Disclosure NonqualifiedDeferredCompensationPlanAssetsFairValueDisclosure	14000000	USD
CY2017Q4	cms	Nonqualified Deferred Compensation Plan Liabilities Fair Value Disclosure NonqualifiedDeferredCompensationPlanLiabilitiesFairValueDisclosure	14000000	USD
CY2018Q4	cms	Nonqualified Deferred Compensation Plan Liabilities Fair Value Disclosure NonqualifiedDeferredCompensationPlanLiabilitiesFairValueDisclosure	14000000	USD
CY2017Q4	cms	Notes And Loans Receivable Net Current Including Held For Sale NotesAndLoansReceivableNetCurrentIncludingHeldForSale	200000000	USD
CY2016	cms	Other Nonoperating Income Expense Retirement Benefits Net OtherNonoperatingIncomeExpenseRetirementBenefitsNet	41000000	USD
CY2017	cms	Other Nonoperating Income Expense Retirement Benefits Net OtherNonoperatingIncomeExpenseRetirementBenefitsNet	24000000	USD
CY2018	cms	Other Nonoperating Income Expense Retirement Benefits Net OtherNonoperatingIncomeExpenseRetirementBenefitsNet	90000000	USD
CY2016	cms	Other Other Nonoperating Expense OtherOtherNonoperatingExpense	8000000	USD
CY2017	cms	Other Other Nonoperating Expense OtherOtherNonoperatingExpense	0	USD
CY2018	cms	Other Other Nonoperating Expense OtherOtherNonoperatingExpense	13000000	USD
CY2016	cms	Other Other Nonoperating Income OtherOtherNonoperatingIncome	2000000	USD
CY2017	cms	Other Other Nonoperating Income OtherOtherNonoperatingIncome	6000000	USD
CY2018	cms	Other Other Nonoperating Income OtherOtherNonoperatingIncome	2000000	USD
CY2016Q4	cms	Property Plant And Equipment Gross Excluding Cwip PropertyPlantAndEquipmentGrossExcludingCWIP	21010000000	USD
CY2017Q4	cms	Property Plant And Equipment Gross Excluding Cwip PropertyPlantAndEquipmentGrossExcludingCWIP	22506000000	USD
CY2018Q4	cms	Property Plant And Equipment Gross Excluding Cwip PropertyPlantAndEquipmentGrossExcludingCWIP	24400000000	USD
CY2017Q4	cms	Property Plant And Equipment Net Excluding Cwip PropertyPlantAndEquipmentNetExcludingCWIP	15996000000	USD
CY2018Q4	cms	Property Plant And Equipment Net Excluding Cwip PropertyPlantAndEquipmentNetExcludingCWIP	17363000000	USD
CY2016	cms	Purchased Power Related Parties PurchasedPowerRelatedParties	86000000	USD
CY2017	cms	Purchased Power Related Parties PurchasedPowerRelatedParties	86000000	USD
CY2018	cms	Purchased Power Related Parties PurchasedPowerRelatedParties	81000000	USD
CY2016	cms	Refund Not Received RefundNotReceived	29000000	USD
CY2017	cms	Refund Not Received RefundNotReceived	0	USD
CY2018	cms	Refund Not Received RefundNotReceived	0	USD
CY2018	cms	Share Based Compensation Arrangement By Share Based Payment Award Maximum Number Of Shares Awardable Per Employee ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesAwardablePerEmployee	500000	shares
CY2018Q3	cms	Stock Offering Program Maximum Value StockOfferingProgramMaximumValue	250000000	USD
CY2018	cms	Stock Offering Program Maximum Value StockOfferingProgramMaximumValue	100000000	USD
CY2018	cms	Tax Cuts And Jobs Act Of2017 Measurement Period Adjustment Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017MeasurementPeriodAdjustmentProvisionalIncomeTaxExpenseBenefit	5000000	USD
CY2018Q4	cms	Union Membership By Total Employees Percentage UnionMembershipByTotalEmployeesPercentage	0.35
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000811156
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	283400105	shares
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018Q2	dei	Entity Public Float EntityPublicFloat	13332000000	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	CMS Energy Corporation
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018	dei	Trading Symbol TradingSymbol	cms
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CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	964000000	USD
CY2017Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	87000000	USD
CY2018Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	99000000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	6510000000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7037000000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-50000000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-65000000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	5019000000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	5088000000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20000000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20000000	USD
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CY2018Q4	us-gaap	Allowance For Notes And Loans Receivable Current AllowanceForNotesAndLoansReceivableCurrent	24000000	USD
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	447000000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	430000000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	432000000	USD
CY2017	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	23000000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	22000000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	5000000	USD
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CY2017	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	45000000	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	40000000	USD
CY2017	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
CY2018	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	0	USD
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CY2018Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	432000000	USD
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CY2017Q4	us-gaap	Assets Assets	23050000000	USD
CY2018Q4	us-gaap	Assets Assets	24529000000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	2475000000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	2468000000	USD
CY2017Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	252000000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	64000000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	138000000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	172000000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	158000000	USD
CY2016	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	13000000	USD
CY2017	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	3000000	USD
CY2018	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
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CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	182000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	153000000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	74000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	27000000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	288000000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	257000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	204000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	175000000	USD
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CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.24
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CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.43
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	350000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	350000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	350000000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	281600000	shares
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CY2017Q4	us-gaap	Common Stock Value CommonStockValue	3000000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	3000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	548000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	460000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	655000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	550000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	462000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	657000000	USD
CY2017Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	765000000	USD
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CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1915000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1868000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2606000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1629000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1705000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1703000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	551000000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	199000000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	92000000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	172000000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	-3000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	460000000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	241000000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	139000000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	169000000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	108000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	657000000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000000	USD
CY2017Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000	USD
CY2017Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2017Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2000000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	5000000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-14000000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	70000000	USD
CY2017Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	198000000	USD
CY2018Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	233000000	USD
CY2017Q4	us-gaap	Notes Payable Current NotesPayableCurrent	170000000	USD
CY2018Q4	us-gaap	Notes Payable Current NotesPayableCurrent	97000000	USD
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1371000000	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1857000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	1256000000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	388000000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	241000000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	330000000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	379000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	1338000000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	363000000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	255000000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	294000000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	250000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	1162000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	97000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	16000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	5000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	8000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	15000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	15000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	38000000	USD
CY2018	us-gaap	Operating Leases Income Statement Lease Revenue OperatingLeasesIncomeStatementLeaseRevenue	160000000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	83000000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	101000000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	799000000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	478000000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	-4000000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	1000000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-8000000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-5000000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-4000000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-5000000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-4000000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-1000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-1000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-1000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-1000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	-1000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	3000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	3000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	2000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-2000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-2000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-4000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-2000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1000000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2016	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1248000000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1236000000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1417000000	USD
CY2017Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	133000000	USD
CY2018Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	143000000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	195000000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	147000000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	307000000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	294000000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-52000000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-82000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-22000000	USD
CY2016	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	75000000	USD
CY2017	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	76000000	USD
CY2018	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	48000000	USD
CY2016	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	8000000	USD
CY2017	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	6000000	USD
CY2018	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	2000000	USD
CY2016	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	17000000	USD
CY2017	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	14000000	USD
CY2018	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	12000000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	107000000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	115000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	146000000	USD
CY2016	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	18000000	USD
CY2017	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	22000000	USD
CY2018	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	36000000	USD
CY2016	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	347000000	USD
CY2017	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	377000000	USD
CY2018	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	407000000	USD
CY2016	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	136000000	USD
CY2017	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	138000000	USD
CY2018	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	307000000	USD
CY2016	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2017	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2018	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	225000000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1672000000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1665000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2074000000	USD
CY2016	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	108000000	USD
CY2017	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	12000000	USD
CY2018	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	252000000	USD
CY2017Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	766000000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	436000000	USD
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	72000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	83000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	41000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2767000000	USD
CY2016	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	100000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1049000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1633000000	USD
CY2017	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	47000000	USD
CY2018	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	513000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-22000000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-46000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-61000000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	146000000	USD
CY2016	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	0	USD
CY2017	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	50000000	USD
CY2018	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	0	USD
CY2016	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	149000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	553000000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	199000000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	93000000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	172000000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	-2000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	462000000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	241000000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	140000000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	169000000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	109000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	659000000	USD
CY2016	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1633000000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1722000000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2081000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	16761000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	18126000000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	50000000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	49000000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	54000000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	20000000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	25000000	USD
CY2016	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	12000000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	5000000	USD
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	6000000	USD
CY2017Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	20000000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	37000000	USD
CY2017Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1764000000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1743000000	USD
CY2017Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	80000000	USD
CY2018Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	155000000	USD
CY2017Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	3715000000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	3681000000	USD
CY2018	us-gaap	Repayments Of Debt RepaymentsOfDebt	1793000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	728000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	980000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1870000000	USD
CY2017	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	228000000	USD
CY2018	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	73000000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	17000000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	21000000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5000000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1000000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-531000000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-271000000	USD
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CY2017Q4	us-gaap	Revenues Revenues	1778000000	USD
CY2017	us-gaap	Revenues Revenues	6583000000	USD
CY2018Q1	us-gaap	Revenues Revenues	1953000000	USD
CY2018Q2	us-gaap	Revenues Revenues	1492000000	USD
CY2018Q3	us-gaap	Revenues Revenues	1599000000	USD
CY2018Q4	us-gaap	Revenues Revenues	1829000000	USD
CY2018	us-gaap	Revenues Revenues	6873000000	USD
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CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.030
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.028
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.167
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.180
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.167
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CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.015
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.021
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	6500000.0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	3714544	shares
CY2017Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1494371	shares
CY2018Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	638898	shares
CY2017Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	70000000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	29000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	4441000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	4755000000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3975000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4290000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4478000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4792000000	USD
CY2016	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	281000000	USD
CY2017	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	284000000	USD
CY2018	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	303000000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	360000000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	398000000	USD
CY2017Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	481000000	USD
CY2018Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	0	USD
CY2016	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-5000000	USD
CY2017	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2018	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	14000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
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CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	10000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4000000	USD
CY2017Q4	us-gaap	Unrecovered Costs For Purchased Gas Amount UnrecoveredCostsForPurchasedGasAmount	0	USD
CY2018Q4	us-gaap	Unrecovered Costs For Purchased Gas Amount UnrecoveredCostsForPurchasedGasAmount	16000000	USD
CY2017Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	64000000	USD
CY2018Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	69000000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	278900000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	280800000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	282900000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	277900000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	280000000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	282200000	shares
CY2018	cms	New Accounting Pronouncements And Description Of New Accounting Pronouncements Not Yet Adopted NewAccountingPronouncementsAndDescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:18pt;"><font style="font-family:Times New Roman;font-size:18pt;color:#000000;font-style:normal;font-weight:bold;text-decoration:none;">New Accounting Standards</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:16pt;"><font style="font-family:Times New Roman;font-size:16pt;color:#000000;font-style:normal;font-weight:normal;text-decoration:none;">Implementation of New Accounting Standards</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;">ASU 2014-09,</font><font style="font-family:inherit;font-size:11pt;"> </font><font style="font-family:inherit;font-size:11pt;font-style:italic;">Revenue from Contracts with Customers:</font><font style="font-family:inherit;font-size:11pt;"> This standard, which was effective on January 1, 2018 for CMS Energy and Consumers, provides new guidance for recognizing revenue from contracts with customers. A primary objective of the standard is to provide a single, comprehensive revenue recognition model that will be applied across entities, industries, and capital markets. The new guidance replaced most of the previous revenue recognition requirements in GAAP, although certain guidance specific to rate-regulated utilities was retained. CMS Energy and Consumers had the option to apply the standard retrospectively to all prior periods presented or retrospectively with the cumulative effect of the standard recorded as an adjustment to beginning retained earnings. They also had the option to apply the standard only to contracts existing on the effective date. CMS Energy and Consumers applied the standard retrospectively to contracts existing on the effective date, and recorded an immaterial cumulative-effect reduction to beginning retained earnings for certain contract costs that can no longer be deferred under the new guidance.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">The implementation of this standard did not have a material impact on CMS Energy’s or Consumers’ consolidated net income, cash flows, or financial position. CMS Energy and Consumers did not identify any significant changes to their revenue recognition practices that were required by the new guidance, but in accordance with the standard, they have provided additional disclosures about their revenues in </font><font style="font-family:inherit;font-size:11pt;">Note 16, Revenue</font><font style="font-family:inherit;font-size:11pt;">.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;">ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities:</font><font style="font-family:inherit;font-size:11pt;"> This standard, which was effective on January 1, 2018 for CMS Energy and Consumers, is intended to improve the accounting for financial instruments. The standard requires investments in equity securities to be measured at fair value, with changes in fair value recognized in net income, except for certain investments such as those that qualify for equity-method accounting. The standard no longer permits unrealized gains and losses for certain equity investments to be recorded in AOCI. There are other targeted changes as well. Entities must apply the standard using a modified retrospective approach, with the cumulative effect of the standard recorded as an adjustment to beginning retained earnings.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">The implementation of the standard had no impact on CMS Energy’s consolidated financial statements. In accordance with the standard, as of January 1, 2018, Consumers removed a </font><font style="font-family:inherit;font-size:11pt;">$19 million</font><font style="font-family:inherit;font-size:11pt;"> unrealized gain and the associated deferred taxes on its investment in CMS Energy common stock from AOCI and recorded the gain in retained earnings. In January 2018, Consumers transferred substantially all of its shares in CMS Energy common stock to a related charitable foundation and, in accordance with this standard, recognized all unrealized gains and losses on its remaining shares in net income for the year ended </font><font style="font-family:inherit;font-size:11pt;">December 31, 2018</font><font style="font-family:inherit;font-size:11pt;">. The accounting treatment for this investment is reflected in Consumers’ consolidated financial statements only, and had no impact on CMS Energy’s consolidated financial statements. For further details on CMS Energy’s and Consumers’ investments in debt and equity securities, see </font><font style="font-family:inherit;font-size:11pt;">Note 7, Financial Instruments</font><font style="font-family:inherit;font-size:11pt;">.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;">ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income:</font><font style="font-family:inherit;font-size:11pt;"> This standard addresses the income tax effects stranded in AOCI as a result of the TCJA. Existing GAAP requires that the remeasurement of deferred tax assets and liabilities resulting from a change in tax laws or rates be presented in net income from continuing operations, even if the deferred taxes were associated with items that were originally recognized in AOCI. As a result, upon recognizing the effects of the TCJA, the tax effects of items in AOCI (referred to as stranded tax effects) no longer reflected the current income tax rate. To address this matter, this standard permits companies to reclassify to retained earnings the stranded tax effects of the TCJA. The standard is effective on January 1, 2019 for CMS Energy and Consumers, but early adoption is permitted. The new guidance is to be applied either in the period of adoption or retrospectively to each prior period in which the effect of the TCJA was recognized. CMS Energy and Consumers elected to adopt this standard early. Accordingly, as of January 1, 2018, CMS Energy reclassified </font><font style="font-family:inherit;font-size:11pt;">$11 million</font><font style="font-family:inherit;font-size:11pt;"> of stranded tax effects from AOCI to retained earnings, which included </font><font style="font-family:inherit;font-size:11pt;">$5 million</font><font style="font-family:inherit;font-size:11pt;"> reclassified at Consumers. At </font><font style="font-family:inherit;font-size:11pt;">December 31, 2018</font><font style="font-family:inherit;font-size:11pt;">, CMS Energy and Consumers did not have any material stranded tax effects remaining in AOCI.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:16pt;"><font style="font-family:Times New Roman;font-size:16pt;color:#000000;font-style:normal;font-weight:normal;text-decoration:none;">New Accounting Standards Not Yet Effective</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;">ASU 2016-02, Leases:</font><font style="font-family:inherit;font-size:11pt;"> This standard establishes a new accounting model for leases. The standard requires entities to recognize lease assets and liabilities on the balance sheet for all leases with a term of more than one year, including operating leases, which are not recorded on the balance sheet under existing standards. The new guidance also amends the definition of a lease to require that a lessee control the use of a specified asset, and not simply control or take the output of the asset. On the statement of income, leases that meet existing capital lease criteria will generally be accounted for under a financing model, while operating leases will generally be accounted for under a straight-line expense model. The standard is effective on January 1, 2019 for CMS Energy and Consumers, but early adoption is permitted.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">CMS Energy and Consumers did not adopt the standard early and will elect certain practical expedients permitted by the standard, under which they will not be required to perform lease assessments or reassessments for agreements existing on the effective date. They also will elect a transition method under which they will initially apply the standard on January 1, 2019, without adjusting amounts presented for prior periods. Under this method, the cumulative effect of applying the standard must be recorded as an adjustment to beginning retained earnings. Under the standard, CMS Energy and Consumers will recognize additional lease assets and liabilities on their consolidated balance sheets as of January 1, 2019 for their operating leases. CMS Energy and Consumers are finalizing their implementation of the standard and do not expect it to have a material impact on their consolidated net income or cash flows. See </font><font style="font-family:inherit;font-size:11pt;">Note 10, Leases and Palisades Financing</font><font style="font-family:inherit;font-size:11pt;">, for more information on CMS Energy’s and Consumers’ operating lease obligations.</font></div><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;">ASU 2016-13, Measurement of Credit Losses on Financial Instruments:</font><font style="font-family:inherit;font-size:11pt;"> This standard, which will be effective January 1, 2020 for CMS Energy and Consumers, provides new guidance for estimating and recording credit losses on financial instruments. The standard will apply to the recognition of loan losses at EnerBank as well as to the recognition of uncollectible accounts expense at Consumers. Entities will apply the standard using a modified retrospective approach, with a cumulative-effect adjustment recorded to beginning retained earnings on the effective date. CMS Energy and Consumers are evaluating the impact of the standard on their consolidated financial statements.</font></div></div>
CY2018	us-gaap	Revenue Recognition Accounting Policy Gross And Net Revenue Disclosure RevenueRecognitionAccountingPolicyGrossAndNetRevenueDisclosure	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">MISO Transactions:</font><font style="font-family:inherit;font-size:11pt;"> MISO requires the submission of hourly day-ahead and real-time bids and offers for energy at locations across the MISO region. CMS Energy and Consumers account for MISO transactions on a net hourly basis in each of the real-time and day-ahead markets, netted across all MISO energy market locations. CMS Energy and Consumers record net hourly purchases in purchased and interchange power and net hourly sales in operating revenue on their consolidated statements of income. They record net billing adjustments upon receipt of settlement statements, record accruals for future net purchases and sales adjustments based on historical experience, and reconcile accruals to actual expenses and sales upon receipt of settlement statements.</font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">Use of Estimates:</font><font style="font-family:inherit;font-size:11pt;"> CMS Energy and Consumers are required to make estimates using assumptions that may affect reported amounts and disclosures. Actual results could differ from those estimates.</font></div></div>

Files In Submission

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$CMS
CMS ENERGY CORP Stock $cms

2019 Q1 Form 10-K Financial Statement

#000081115619000003 Filed on February 05, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMS CMS ENERGY CORP Stock $cms

2019 Q1 Form 10-K Financial Statement

#000081115619000003 Filed on February 05, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMS
CMS ENERGY CORP Stock $cms