10-Q Filing

AMEREN CORP CIK: 1002910 Q2 2025

Filing Information

Form Type	10-Q
Accession Number	`0001002910-25-000112`
Period End Date	20250630
Filing Date	20250804
Fiscal Year	2025
Fiscal Period	Q2
XBRL Instance	aee-20250630_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 194 Income Statement 216 Cash Flow Statement 156 Stockholders Equity 90

Balance Sheet 194 line items

Line Item	Tag	Value	Unit	Period
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$39.00M	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$39.00M	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$30.00M	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$30.00M	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.67B	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.67B	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.40B	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.40B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$29.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$29.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$317.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$317.00M	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$18.81B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$18.81B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$17.26B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$17.26B	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$11.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$11.00M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	400.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$7.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$7.00M	USD	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	270.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	270.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	270.40M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	270.40M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	266.80M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	266.80M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	269.90M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	269.90M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	266.60M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	266.60M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	266.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	266.30M	shares	Point-in-time
Accounts receivable - trade (less allowance for doubtful accounts)	`AccountsReceivableNetCurrent`	$567.00M	USD	Point-in-time
Accounts receivable - trade (less allowance for doubtful accounts)	`AccountsReceivableNetCurrent`	$567.00M	USD	Point-in-time
Accounts receivable - trade (less allowance for doubtful accounts)	`AccountsReceivableNetCurrent`	$525.00M	USD	Point-in-time
Accounts receivable - trade (less allowance for doubtful accounts)	`AccountsReceivableNetCurrent`	$525.00M	USD	Point-in-time
Unbilled revenue	`UnbilledReceivablesCurrent`	$467.00M	USD	Point-in-time
Unbilled revenue	`UnbilledReceivablesCurrent`	$467.00M	USD	Point-in-time
Unbilled revenue	`UnbilledReceivablesCurrent`	$346.00M	USD	Point-in-time
Unbilled revenue	`UnbilledReceivablesCurrent`	$346.00M	USD	Point-in-time
Miscellaneous accounts receivable	`OtherReceivablesNetCurrent`	$96.00M	USD	Point-in-time
Miscellaneous accounts receivable	`OtherReceivablesNetCurrent`	$96.00M	USD	Point-in-time
Miscellaneous accounts receivable	`OtherReceivablesNetCurrent`	$101.00M	USD	Point-in-time
Miscellaneous accounts receivable	`OtherReceivablesNetCurrent`	$101.00M	USD	Point-in-time
Inventories	`InventoryNet`	$738.00M	USD	Point-in-time
Inventories	`InventoryNet`	$738.00M	USD	Point-in-time
Inventories	`InventoryNet`	$762.00M	USD	Point-in-time
Inventories	`InventoryNet`	$762.00M	USD	Point-in-time
Current regulatory assets	`RegulatoryAssetsCurrent`	$366.00M	USD	Point-in-time
Current regulatory assets	`RegulatoryAssetsCurrent`	$366.00M	USD	Point-in-time
Current regulatory assets	`RegulatoryAssetsCurrent`	$332.00M	USD	Point-in-time
Current regulatory assets	`RegulatoryAssetsCurrent`	$332.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$162.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$162.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$258.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$258.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.47B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.47B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.26B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.26B	USD	Point-in-time
Property, Plant, and Equipment, Net	`PropertyPlantAndEquipmentNet`	$36.30B	USD	Point-in-time
Property, Plant, and Equipment, Net	`PropertyPlantAndEquipmentNet`	$36.30B	USD	Point-in-time
Property, Plant, and Equipment, Net	`PropertyPlantAndEquipmentNet`	$37.82B	USD	Point-in-time
Property, Plant, and Equipment, Net	`PropertyPlantAndEquipmentNet`	$37.82B	USD	Point-in-time
Nuclear decommissioning trust fund	`DecommissioningFundInvestments`	$1.34B	USD	Point-in-time
Nuclear decommissioning trust fund	`DecommissioningFundInvestments`	$1.34B	USD	Point-in-time
Nuclear decommissioning trust fund	`DecommissioningFundInvestments`	$1.41B	USD	Point-in-time
Nuclear decommissioning trust fund	`DecommissioningFundInvestments`	$1.41B	USD	Point-in-time
Goodwill	`Goodwill`	$411.00M	USD	Point-in-time
Goodwill	`Goodwill`	$411.00M	USD	Point-in-time
Goodwill	`Goodwill`	$411.00M	USD	Point-in-time
Goodwill	`Goodwill`	$411.00M	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.67B	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.67B	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.40B	USD	Point-in-time
Regulatory Asset	`RegulatoryAssetsNoncurrent`	$2.40B	USD	Point-in-time
Pension and other postretirement benefits	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$734.00M	USD	Point-in-time
Pension and other postretirement benefits	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$734.00M	USD	Point-in-time
Pension and other postretirement benefits	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$757.00M	USD	Point-in-time
Pension and other postretirement benefits	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$757.00M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.12B	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.12B	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.11B	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$1.11B	USD	Point-in-time
Total investments and other assets	`RegulatedEntityOtherAssetsNoncurrent`	$6.03B	USD	Point-in-time
Total investments and other assets	`RegulatedEntityOtherAssetsNoncurrent`	$6.03B	USD	Point-in-time
Total investments and other assets	`RegulatedEntityOtherAssetsNoncurrent`	$6.33B	USD	Point-in-time
Total investments and other assets	`RegulatedEntityOtherAssetsNoncurrent`	$6.33B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$46.62B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$46.62B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$44.60B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$44.60B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$29.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$29.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$317.00M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$317.00M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.14B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.14B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.14B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.14B	USD	Point-in-time
Accounts and wages payable	`AccountsPayableAndAccruedLiabilitiesCurrent`	$1.06B	USD	Point-in-time
Accounts and wages payable	`AccountsPayableAndAccruedLiabilitiesCurrent`	$1.06B	USD	Point-in-time
Accounts and wages payable	`AccountsPayableAndAccruedLiabilitiesCurrent`	$882.00M	USD	Point-in-time
Accounts and wages payable	`AccountsPayableAndAccruedLiabilitiesCurrent`	$882.00M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$155.00M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$155.00M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$60.00M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$60.00M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$230.00M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$230.00M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$196.00M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$196.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$240.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$240.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$223.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$223.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$410.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$410.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$415.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$415.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.41B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.41B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.09B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.09B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$18.81B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$18.81B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$17.26B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$17.26B	USD	Point-in-time
Accumulated deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent`	$4.88B	USD	Point-in-time
Accumulated deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent`	$4.88B	USD	Point-in-time
Accumulated deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent`	$4.47B	USD	Point-in-time
Accumulated deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent`	$4.47B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$6.01B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$6.01B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$5.90B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$5.90B	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$838.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$838.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$822.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$822.00M	USD	Point-in-time
Other deferred credits and liabilities	`OtherLiabilitiesNoncurrent`	$487.00M	USD	Point-in-time
Other deferred credits and liabilities	`OtherLiabilitiesNoncurrent`	$487.00M	USD	Point-in-time
Other deferred credits and liabilities	`OtherLiabilitiesNoncurrent`	$551.00M	USD	Point-in-time
Other deferred credits and liabilities	`OtherLiabilitiesNoncurrent`	$551.00M	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$11.68B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$11.68B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$12.28B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$12.28B	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common Stock	`CommonStockValue`	$3.00M	USD	Point-in-time
Common Stock	`CommonStockValue`	$3.00M	USD	Point-in-time
Common Stock	`CommonStockValue`	$3.00M	USD	Point-in-time
Common Stock	`CommonStockValue`	$3.00M	USD	Point-in-time
Other paid-in capital, principally premium on common stock	`AdditionalPaidInCapital`	$7.51B	USD	Point-in-time
Other paid-in capital, principally premium on common stock	`AdditionalPaidInCapital`	$7.51B	USD	Point-in-time
Other paid-in capital, principally premium on common stock	`AdditionalPaidInCapital`	$7.54B	USD	Point-in-time
Other paid-in capital, principally premium on common stock	`AdditionalPaidInCapital`	$7.54B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.78B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.78B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.60B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.60B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-14.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-14.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.00M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$12.11B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$12.11B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$12.31B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$12.31B	USD	Point-in-time
Noncontrolling Interests	`MinorityInterest`	$129.00M	USD	Point-in-time
Noncontrolling Interests	`MinorityInterest`	$129.00M	USD	Point-in-time
Noncontrolling Interests	`MinorityInterest`	$129.00M	USD	Point-in-time
Noncontrolling Interests	`MinorityInterest`	$129.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.67B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.67B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.24B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.24B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.44B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.44B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$44.60B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$44.60B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$46.62B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$46.62B	USD	Point-in-time

Income Statement 216 line items

Line Item	Tag	Value	Unit	Period
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	2 Qtrs
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	2 Qtrs
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	2 Qtrs
Pension and other postretirement benefit plan activity, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-1.00M	USD	2 Qtrs
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	2 Qtrs
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	2 Qtrs
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	1 Quarter
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	1 Quarter
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.00M	USD	1 Quarter
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.00M	USD	1 Quarter
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.00M	USD	2 Qtrs
Unrealized net loss on derivative hedging instruments, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.00M	USD	2 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$3.51B	USD	2 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$3.51B	USD	2 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.69B	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$1.69B	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.22B	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.22B	USD	1 Quarter
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$4.32B	USD	2 Qtrs
Operating Revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$4.32B	USD	2 Qtrs
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$1.30B	USD	2 Qtrs
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$1.30B	USD	2 Qtrs
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$794.00M	USD	1 Quarter
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$794.00M	USD	1 Quarter
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$327.00M	USD	1 Quarter
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$327.00M	USD	1 Quarter
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$655.00M	USD	2 Qtrs
Fuel and purchased power	`UtilitiesOperatingExpenseFuelUsedAndPurchasedPower`	$655.00M	USD	2 Qtrs
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$208.00M	USD	2 Qtrs
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$208.00M	USD	2 Qtrs
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$33.00M	USD	1 Quarter
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$33.00M	USD	1 Quarter
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$184.00M	USD	2 Qtrs
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$184.00M	USD	2 Qtrs
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$39.00M	USD	1 Quarter
Natural gas purchased for resale	`UtilitiesOperatingExpenseGasAndPetroleumPurchased`	$39.00M	USD	1 Quarter
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$935.00M	USD	2 Qtrs
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$935.00M	USD	2 Qtrs
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$465.00M	USD	1 Quarter
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$465.00M	USD	1 Quarter
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$460.00M	USD	1 Quarter
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$460.00M	USD	1 Quarter
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$945.00M	USD	2 Qtrs
Other operations and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$945.00M	USD	2 Qtrs
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$386.00M	USD	1 Quarter
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$386.00M	USD	1 Quarter
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$737.00M	USD	2 Qtrs
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$737.00M	USD	2 Qtrs
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$753.00M	USD	2 Qtrs
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$753.00M	USD	2 Qtrs
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$376.00M	USD	1 Quarter
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$376.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$131.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$131.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$275.00M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$275.00M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$131.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$131.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$266.00M	USD	2 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$266.00M	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$2.78B	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$2.78B	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$1.81B	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$1.81B	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$3.48B	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$3.48B	USD	2 Qtrs
Total operating expenses	`OperatingExpenses`	$1.33B	USD	1 Quarter
Total operating expenses	`OperatingExpenses`	$1.33B	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$732.00M	USD	2 Qtrs
Operating Income	`OperatingIncomeLoss`	$732.00M	USD	2 Qtrs
Operating Income	`OperatingIncomeLoss`	$841.00M	USD	2 Qtrs
Operating Income	`OperatingIncomeLoss`	$841.00M	USD	2 Qtrs
Operating Income	`OperatingIncomeLoss`	$411.00M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$411.00M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$361.00M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$361.00M	USD	1 Quarter
Other Income, Net	`OtherNonoperatingIncomeExpense`	$192.00M	USD	2 Qtrs
Other Income, Net	`OtherNonoperatingIncomeExpense`	$192.00M	USD	2 Qtrs
Other Income, Net	`OtherNonoperatingIncomeExpense`	$96.00M	USD	1 Quarter
Other Income, Net	`OtherNonoperatingIncomeExpense`	$96.00M	USD	1 Quarter
Other Income, Net	`OtherNonoperatingIncomeExpense`	$103.00M	USD	1 Quarter
Other Income, Net	`OtherNonoperatingIncomeExpense`	$103.00M	USD	1 Quarter
Other Income, Net	`OtherNonoperatingIncomeExpense`	$181.00M	USD	2 Qtrs
Other Income, Net	`OtherNonoperatingIncomeExpense`	$181.00M	USD	2 Qtrs
Interest Charges	`InterestExpense`	$187.00M	USD	1 Quarter
Interest Charges	`InterestExpense`	$187.00M	USD	1 Quarter
Interest Charges	`InterestExpense`	$319.00M	USD	2 Qtrs
Interest Charges	`InterestExpense`	$319.00M	USD	2 Qtrs
Interest Charges	`InterestExpense`	$165.00M	USD	1 Quarter
Interest Charges	`InterestExpense`	$165.00M	USD	1 Quarter
Interest Charges	`InterestExpense`	$362.00M	USD	2 Qtrs
Interest Charges	`InterestExpense`	$362.00M	USD	2 Qtrs
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$320.00M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$320.00M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$299.00M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$299.00M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$605.00M	USD	2 Qtrs
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$605.00M	USD	2 Qtrs
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$660.00M	USD	2 Qtrs
Income Before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$660.00M	USD	2 Qtrs
Income Taxes	`IncomeTaxExpenseBenefit`	$83.00M	USD	2 Qtrs
Income Taxes	`IncomeTaxExpenseBenefit`	$83.00M	USD	2 Qtrs
Income Taxes	`IncomeTaxExpenseBenefit`	$39.00M	USD	1 Quarter
Income Taxes	`IncomeTaxExpenseBenefit`	$39.00M	USD	1 Quarter
Income Taxes	`IncomeTaxExpenseBenefit`	$43.00M	USD	1 Quarter
Income Taxes	`IncomeTaxExpenseBenefit`	$43.00M	USD	1 Quarter
Income Taxes	`IncomeTaxExpenseBenefit`	$93.00M	USD	2 Qtrs
Income Taxes	`IncomeTaxExpenseBenefit`	$93.00M	USD	2 Qtrs
Net Income	`ProfitLoss`	$277.00M	USD	1 Quarter
Net Income	`ProfitLoss`	$277.00M	USD	1 Quarter
Net Income	`ProfitLoss`	$522.00M	USD	2 Qtrs
Net Income	`ProfitLoss`	$522.00M	USD	2 Qtrs
Net Income	`ProfitLoss`	$260.00M	USD	1 Quarter
Net Income	`ProfitLoss`	$260.00M	USD	1 Quarter
Net Income	`ProfitLoss`	$567.00M	USD	2 Qtrs
Net Income	`ProfitLoss`	$567.00M	USD	2 Qtrs
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Less: Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$2.00M	USD	1 Quarter
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$2.00M	USD	1 Quarter
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$2.00M	USD	1 Quarter
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$2.00M	USD	1 Quarter
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$3.00M	USD	2 Qtrs
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$3.00M	USD	2 Qtrs
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$3.00M	USD	2 Qtrs
Preferred Stock Dividends	`PreferredStockDividendsIncomeStatementImpact`	$3.00M	USD	2 Qtrs
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$275.00M	USD	1 Quarter
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$275.00M	USD	1 Quarter
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$519.00M	USD	2 Qtrs
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$519.00M	USD	2 Qtrs
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$564.00M	USD	2 Qtrs
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$564.00M	USD	2 Qtrs
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$258.00M	USD	1 Quarter
Net income attributable to Ameren common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$258.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	2 Qtrs
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	2 Qtrs
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$3.00M	USD	2 Qtrs
Pension and other postretirement benefit plan activity, net of income taxes (benefit) of $(1), $(1), $(1), and $(1) respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$3.00M	USD	2 Qtrs
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-6.00M	USD	2 Qtrs
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-6.00M	USD	2 Qtrs
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-2.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-2.00M	USD	1 Quarter
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	1 Quarter
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	1 Quarter
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	2 Qtrs
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	2 Qtrs
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$258.00M	USD	1 Quarter
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$258.00M	USD	1 Quarter
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$519.00M	USD	2 Qtrs
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$519.00M	USD	2 Qtrs
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$559.00M	USD	2 Qtrs
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$559.00M	USD	2 Qtrs
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$273.00M	USD	1 Quarter
Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$273.00M	USD	1 Quarter
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Less: Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$256.00M	USD	1 Quarter
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$256.00M	USD	1 Quarter
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$556.00M	USD	2 Qtrs
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$556.00M	USD	2 Qtrs
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$271.00M	USD	1 Quarter
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$271.00M	USD	1 Quarter
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$516.00M	USD	2 Qtrs
Comprehensive Income Attributable to Ameren Common Shareholders	`ComprehensiveIncomeNetOfTax`	$516.00M	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$2.09	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$2.09	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$1.02	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$1.02	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$1.95	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$1.95	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$0.97	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareBasic`	$0.97	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$1.01	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$1.01	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$0.97	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$0.97	USD	1 Quarter
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$1.95	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$1.95	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$2.08	USD	2 Qtrs
Earnings per Common Share - Basic	`EarningsPerShareDiluted`	$2.08	USD	2 Qtrs
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	266.50M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	266.50M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	270.10M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	270.10M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	266.70M	shares	1 Quarter
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	266.70M	shares	1 Quarter
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	270.30M	shares	1 Quarter
Weighted-average Common Shares Outstanding Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	270.30M	shares	1 Quarter
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	271.60M	shares	1 Quarter
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	271.60M	shares	1 Quarter
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	271.50M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	271.50M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	266.80M	shares	1 Quarter
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	266.80M	shares	1 Quarter
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	266.80M	shares	2 Qtrs
Weighted-average Common Shares Outstanding Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	266.80M	shares	2 Qtrs

Cash Flow Statement 156 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$277.00M	USD	1 Quarter
Net income	`ProfitLoss`	$277.00M	USD	1 Quarter
Net income	`ProfitLoss`	$522.00M	USD	2 Qtrs
Net income	`ProfitLoss`	$522.00M	USD	2 Qtrs
Net income	`ProfitLoss`	$260.00M	USD	1 Quarter
Net income	`ProfitLoss`	$260.00M	USD	1 Quarter
Net income	`ProfitLoss`	$567.00M	USD	2 Qtrs
Net income	`ProfitLoss`	$567.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$793.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$793.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$760.00M	USD	2 Qtrs
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$760.00M	USD	2 Qtrs
Amortization of nuclear fuel	`AmortizationOfNuclearFuelLease`	$20.00M	USD	2 Qtrs
Amortization of nuclear fuel	`AmortizationOfNuclearFuelLease`	$20.00M	USD	2 Qtrs
Amortization of nuclear fuel	`AmortizationOfNuclearFuelLease`	$38.00M	USD	2 Qtrs
Amortization of nuclear fuel	`AmortizationOfNuclearFuelLease`	$38.00M	USD	2 Qtrs
Amortization of debt issuance costs and premium/discounts	`AmortizationOfFinancingCostsAndDiscounts`	$10.00M	USD	2 Qtrs
Amortization of debt issuance costs and premium/discounts	`AmortizationOfFinancingCostsAndDiscounts`	$10.00M	USD	2 Qtrs
Amortization of debt issuance costs and premium/discounts	`AmortizationOfFinancingCostsAndDiscounts`	$9.00M	USD	2 Qtrs
Amortization of debt issuance costs and premium/discounts	`AmortizationOfFinancingCostsAndDiscounts`	$9.00M	USD	2 Qtrs
Deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$172.00M	USD	2 Qtrs
Deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$172.00M	USD	2 Qtrs
Deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$76.00M	USD	2 Qtrs
Deferred income taxes and tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$76.00M	USD	2 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$39.00M	USD	2 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$39.00M	USD	2 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$25.00M	USD	2 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$25.00M	USD	2 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$16.00M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$16.00M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$23.00M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$23.00M	USD	1 Quarter
Stock-based compensation costs	`ShareBasedCompensation`	$14.00M	USD	2 Qtrs
Stock-based compensation costs	`ShareBasedCompensation`	$14.00M	USD	2 Qtrs
Stock-based compensation costs	`ShareBasedCompensation`	$14.00M	USD	2 Qtrs
Stock-based compensation costs	`ShareBasedCompensation`	$14.00M	USD	2 Qtrs
Other	`OtherNoncashIncomeExpense`	$-13.00M	USD	2 Qtrs
Other	`OtherNoncashIncomeExpense`	$-13.00M	USD	2 Qtrs
Other	`OtherNoncashIncomeExpense`	$-10.00M	USD	2 Qtrs
Other	`OtherNoncashIncomeExpense`	$-10.00M	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$189.00M	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$189.00M	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$85.00M	USD	2 Qtrs
Receivables	`IncreaseDecreaseInReceivables`	$85.00M	USD	2 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$-24.00M	USD	2 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$-24.00M	USD	2 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$7.00M	USD	2 Qtrs
Inventories	`IncreaseDecreaseInInventories`	$7.00M	USD	2 Qtrs
Accounts and wages payable	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-173.00M	USD	2 Qtrs
Accounts and wages payable	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-173.00M	USD	2 Qtrs
Accounts and wages payable	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-210.00M	USD	2 Qtrs
Accounts and wages payable	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-210.00M	USD	2 Qtrs
Taxes accrued	`IncreaseDecreaseInAccruedTaxesPayable`	$121.00M	USD	2 Qtrs
Taxes accrued	`IncreaseDecreaseInAccruedTaxesPayable`	$121.00M	USD	2 Qtrs
Taxes accrued	`IncreaseDecreaseInAccruedTaxesPayable`	$278.00M	USD	2 Qtrs
Taxes accrued	`IncreaseDecreaseInAccruedTaxesPayable`	$278.00M	USD	2 Qtrs
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$153.00M	USD	2 Qtrs
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$153.00M	USD	2 Qtrs
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$105.00M	USD	2 Qtrs
Regulatory assets and liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$105.00M	USD	2 Qtrs
Assets, other	`IncreaseDecreaseInOtherOperatingAssets`	$66.00M	USD	2 Qtrs
Assets, other	`IncreaseDecreaseInOtherOperatingAssets`	$66.00M	USD	2 Qtrs
Assets, other	`IncreaseDecreaseInOtherOperatingAssets`	$59.00M	USD	2 Qtrs
Assets, other	`IncreaseDecreaseInOtherOperatingAssets`	$59.00M	USD	2 Qtrs
Liabilities, other	`IncreaseDecreaseInOtherOperatingLiabilities`	$99.00M	USD	2 Qtrs
Liabilities, other	`IncreaseDecreaseInOtherOperatingLiabilities`	$99.00M	USD	2 Qtrs
Liabilities, other	`IncreaseDecreaseInOtherOperatingLiabilities`	$101.00M	USD	2 Qtrs
Liabilities, other	`IncreaseDecreaseInOtherOperatingLiabilities`	$101.00M	USD	2 Qtrs
Pension and other postretirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-112.00M	USD	2 Qtrs
Pension and other postretirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-112.00M	USD	2 Qtrs
Pension and other postretirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-76.00M	USD	2 Qtrs
Pension and other postretirement benefits	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-76.00M	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.05B	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.05B	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.29B	USD	2 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.29B	USD	2 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.89B	USD	2 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.89B	USD	2 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.13B	USD	2 Qtrs
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.13B	USD	2 Qtrs
Nuclear fuel expenditures	`PaymentsForNuclearFuel`	$19.00M	USD	2 Qtrs
Nuclear fuel expenditures	`PaymentsForNuclearFuel`	$19.00M	USD	2 Qtrs
Nuclear fuel expenditures	`PaymentsForNuclearFuel`	$37.00M	USD	2 Qtrs
Nuclear fuel expenditures	`PaymentsForNuclearFuel`	$37.00M	USD	2 Qtrs
Purchases of securities nuclear decommissioning trust fund	`PaymentsToInvestInDecommissioningFund`	$244.00M	USD	2 Qtrs
Purchases of securities nuclear decommissioning trust fund	`PaymentsToInvestInDecommissioningFund`	$244.00M	USD	2 Qtrs
Purchases of securities nuclear decommissioning trust fund	`PaymentsToInvestInDecommissioningFund`	$323.00M	USD	2 Qtrs
Purchases of securities nuclear decommissioning trust fund	`PaymentsToInvestInDecommissioningFund`	$323.00M	USD	2 Qtrs
Sales and maturities of securities nuclear decommissioning trust fund	`ProceedsFromDecommissioningFund`	$309.00M	USD	2 Qtrs
Sales and maturities of securities nuclear decommissioning trust fund	`ProceedsFromDecommissioningFund`	$309.00M	USD	2 Qtrs
Sales and maturities of securities nuclear decommissioning trust fund	`ProceedsFromDecommissioningFund`	$223.00M	USD	2 Qtrs
Sales and maturities of securities nuclear decommissioning trust fund	`ProceedsFromDecommissioningFund`	$223.00M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-59.00M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-59.00M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-11.00M	USD	2 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-11.00M	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.93B	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.93B	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.11B	USD	2 Qtrs
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.11B	USD	2 Qtrs
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$384.00M	USD	2 Qtrs
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$384.00M	USD	2 Qtrs
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$356.00M	USD	2 Qtrs
Dividends on common stock	`PaymentsOfDividendsCommonStock`	$356.00M	USD	2 Qtrs
Dividends paid to noncontrolling interest holders	`PaymentsOfDividendsMinorityInterest`	$3.00M	USD	2 Qtrs
Dividends paid to noncontrolling interest holders	`PaymentsOfDividendsMinorityInterest`	$3.00M	USD	2 Qtrs
Dividends paid to noncontrolling interest holders	`PaymentsOfDividendsMinorityInterest`	$3.00M	USD	2 Qtrs
Dividends paid to noncontrolling interest holders	`PaymentsOfDividendsMinorityInterest`	$3.00M	USD	2 Qtrs
Short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$156.00M	USD	2 Qtrs
Short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$156.00M	USD	2 Qtrs
Short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-2.00M	USD	2 Qtrs
Short-term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-2.00M	USD	2 Qtrs
Maturities and extinguishment of long-term debt	`RepaymentsOfLongTermDebt`	$350.00M	USD	2 Qtrs
Maturities and extinguishment of long-term debt	`RepaymentsOfLongTermDebt`	$350.00M	USD	2 Qtrs
Maturities and extinguishment of long-term debt	`RepaymentsOfLongTermDebt`	$324.00M	USD	2 Qtrs
Maturities and extinguishment of long-term debt	`RepaymentsOfLongTermDebt`	$324.00M	USD	2 Qtrs
Issuances of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.60B	USD	2 Qtrs
Issuances of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.60B	USD	2 Qtrs
Issuances of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.47B	USD	2 Qtrs
Issuances of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.47B	USD	2 Qtrs
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	$21.00M	USD	2 Qtrs
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	$21.00M	USD	2 Qtrs
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	$25.00M	USD	2 Qtrs
Issuances of common stock	`ProceedsFromIssuanceOfCommonStock`	$25.00M	USD	2 Qtrs
Employee payroll taxes related to stock-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$13.00M	USD	2 Qtrs
Employee payroll taxes related to stock-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$13.00M	USD	2 Qtrs
Employee payroll taxes related to stock-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$8.00M	USD	2 Qtrs
Employee payroll taxes related to stock-based compensation	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$8.00M	USD	2 Qtrs
Debt issuance costs	`PaymentOfFinancingAndStockIssuanceCosts`	$18.00M	USD	2 Qtrs
Debt issuance costs	`PaymentOfFinancingAndStockIssuanceCosts`	$18.00M	USD	2 Qtrs
Debt issuance costs	`PaymentOfFinancingAndStockIssuanceCosts`	$14.00M	USD	2 Qtrs
Debt issuance costs	`PaymentOfFinancingAndStockIssuanceCosts`	$14.00M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$912.00M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$912.00M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$884.00M	USD	2 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$884.00M	USD	2 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$29.00M	USD	2 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$29.00M	USD	2 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$66.00M	USD	2 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$66.00M	USD	2 Qtrs
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$328.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$328.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$394.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$394.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$272.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$272.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$301.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of year	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$301.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$328.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$328.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$394.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$394.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$272.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$272.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$301.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$301.00M	USD	Point-in-time

Stockholders Equity 90 line items

Line Item	Tag	Value	Unit	Period
Beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.67B	USD	Point-in-time
Beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.67B	USD	Point-in-time
Beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.24B	USD	Point-in-time
Beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.24B	USD	Point-in-time
Beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.44B	USD	Point-in-time
Beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.44B	USD	Point-in-time
Net income	`ProfitLoss`	$277.00M	USD	1 Quarter
Net income	`ProfitLoss`	$277.00M	USD	1 Quarter
Net income	`ProfitLoss`	$522.00M	USD	2 Qtrs
Net income	`ProfitLoss`	$522.00M	USD	2 Qtrs
Net income	`ProfitLoss`	$260.00M	USD	1 Quarter
Net income	`ProfitLoss`	$260.00M	USD	1 Quarter
Net income	`ProfitLoss`	$567.00M	USD	2 Qtrs
Net income	`ProfitLoss`	$567.00M	USD	2 Qtrs
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	2 Qtrs
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	2 Qtrs
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.00M	USD	1 Quarter
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$3.00M	USD	2 Qtrs
Change in deferred retirement benefit costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$3.00M	USD	2 Qtrs
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$2.00M	USD	1 Quarter
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Net income attributable to noncontrolling interest holders	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.00M	USD	2 Qtrs
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	270.30M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	270.30M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	270.40M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	270.40M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	266.80M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	266.80M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	269.90M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	269.90M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	266.60M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	266.60M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	266.30M	shares	Point-in-time
Common stock shares outstanding at beginning of period	`CommonStockSharesOutstanding`	266.30M	shares	Point-in-time
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	200,000.00	shares	1 Quarter
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	200,000.00	shares	1 Quarter
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	300,000.00	shares	2 Qtrs
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	300,000.00	shares	2 Qtrs
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	200,000.00	shares	2 Qtrs
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	200,000.00	shares	2 Qtrs
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	100,000.00	shares	1 Quarter
Shares issued under the DRPlus and 401(k) plan	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	100,000.00	shares	1 Quarter
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	300,000.00	shares	1 Quarter
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	300,000.00	shares	1 Quarter
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	200,000.00	shares	2 Qtrs
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	200,000.00	shares	2 Qtrs
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	0.00	shares	1 Quarter
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	0.00	shares	1 Quarter
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	300,000.00	shares	2 Qtrs
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	300,000.00	shares	2 Qtrs
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	0.00	shares	1 Quarter
Shares issued for stock-based compensation	`StockIssuedDuringPeriodSharesOther`	0.00	shares	1 Quarter
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	270.30M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	270.30M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	270.40M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	270.40M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	266.80M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	266.80M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	269.90M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	269.90M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	266.60M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	266.60M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	266.30M	shares	Point-in-time
Common stock shares outstanding at end of period	`CommonStockSharesOutstanding`	266.30M	shares	Point-in-time
End of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.67B	USD	Point-in-time
End of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.67B	USD	Point-in-time
End of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.24B	USD	Point-in-time
End of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.24B	USD	Point-in-time
End of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.44B	USD	Point-in-time
End of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$12.44B	USD	Point-in-time
Shareholders' equity, end of year	`StockholdersEquity`	$12.11B	USD	Point-in-time
Shareholders' equity, end of year	`StockholdersEquity`	$12.11B	USD	Point-in-time
Shareholders' equity, end of year	`StockholdersEquity`	$12.31B	USD	Point-in-time
Shareholders' equity, end of year	`StockholdersEquity`	$12.31B	USD	Point-in-time
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$1.42	USD	2 Qtrs
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$1.42	USD	2 Qtrs
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$0.67	USD	1 Quarter
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$0.67	USD	1 Quarter
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$0.71	USD	1 Quarter
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$0.71	USD	1 Quarter
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$1.34	USD	2 Qtrs
Dividends per common share	`CommonStockDividendsPerShareCashPaid`	$1.34	USD	2 Qtrs

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