10-K Filing

EVERSOURCE ENERGY CIK: 72741 FY 2016

Filing Information

Form Type	10-K
Accession Number	`0000072741-17-000007`
Period End Date	20161231
Filing Date	20170223
Fiscal Year	2016
Fiscal Period	FY
XBRL Instance	es-20161231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 80 Income Statement 108 Cash Flow Statement 103 Stockholders Equity 46 Comprehensive Income 29

Balance Sheet 80 line items

Line Item	Tag	Value	Unit	Period
Cash and Cash Equivalents	`Cash`	$43.36M	USD	Point-in-time
Cash and Cash Equivalents	`Cash`	$30.25M	USD	Point-in-time
Cash and Cash Equivalents	`Cash`	$23.95M	USD	Point-in-time
Cash and Cash Equivalents	`Cash`	$38.70M	USD	Point-in-time
Receivables, Net	`AccountsReceivableNetCurrent`	$847.30M	USD	Point-in-time
Receivables, Net	`AccountsReceivableNetCurrent`	$775.48M	USD	Point-in-time
Unbilled Revenues	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear`	$168.49M	USD	Point-in-time
Unbilled Revenues	`CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear`	$202.65M	USD	Point-in-time
Taxes Receivable	`IncomeTaxesReceivable`	$80.47M	USD	Point-in-time
Taxes Receivable	`IncomeTaxesReceivable`	$305.36M	USD	Point-in-time
Fuel, Materials, Supplies and Inventory	`EnergyRelatedInventory`	$336.48M	USD	Point-in-time
Fuel, Materials, Supplies and Inventory	`EnergyRelatedInventory`	$328.72M	USD	Point-in-time
Regulatory Assets	`RegulatoryAssetsCurrent`	$845.84M	USD	Point-in-time
Regulatory Assets	`RegulatoryAssetsCurrent`	$887.62M	USD	Point-in-time
Prepayments and Other Current Assets	`OtherAssetsCurrent`	$134.81M	USD	Point-in-time
Prepayments and Other Current Assets	`OtherAssetsCurrent`	$129.03M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$2.48B	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$2.62B	USD	Point-in-time
Property, Plant and Equipment, Net	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$21.35B	USD	Point-in-time
Property, Plant and Equipment, Net	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$19.89B	USD	Point-in-time
Regulatory Assets	`RegulatoryAssetsNoncurrent`	$3.74B	USD	Point-in-time
Regulatory Assets	`RegulatoryAssetsNoncurrent`	$3.64B	USD	Point-in-time
Goodwill	`Goodwill`	$3.52B	USD	Point-in-time
Goodwill	`Goodwill`	$3.52B	USD	Point-in-time
Marketable Securities	`MarketableSecuritiesNoncurrent`	$544.64M	USD	Point-in-time
Marketable Securities	`MarketableSecuritiesNoncurrent`	$516.48M	USD	Point-in-time
Other Long-Term Assets	`OtherAssetsNoncurrent`	$522.26M	USD	Point-in-time
Other Long-Term Assets	`OtherAssetsNoncurrent`	$295.24M	USD	Point-in-time
Total Deferred Debits and Other Assets	`AssetsNoncurrent`	$8.22B	USD	Point-in-time
Total Deferred Debits and Other Assets	`AssetsNoncurrent`	$8.07B	USD	Point-in-time
Total Assets	`Assets`	$32.05B	USD	Point-in-time
Total Assets	`Assets`	$30.58B	USD	Point-in-time
Notes Payable	`NotesPayable`	$1.16B	USD	Point-in-time
Notes Payable	`NotesPayable`	$1.15B	USD	Point-in-time
Long-Term Debt Current Portion	`LongTermDebtCurrent`	$773.88M	USD	Point-in-time
Long-Term Debt Current Portion	`LongTermDebtCurrent`	$228.88M	USD	Point-in-time
Accounts Payable	`AccountsPayableCurrent`	$813.65M	USD	Point-in-time
Accounts Payable	`AccountsPayableCurrent`	$884.52M	USD	Point-in-time
Regulatory Liabilities	`RegulatoryLiabilityCurrent`	$146.79M	USD	Point-in-time
Regulatory Liabilities	`RegulatoryLiabilityCurrent`	$107.76M	USD	Point-in-time
Other Current Liabilities	`OtherLiabilitiesCurrent`	$678.55M	USD	Point-in-time
Other Current Liabilities	`OtherLiabilitiesCurrent`	$684.91M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$3.64B	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$2.99B	USD	Point-in-time
Accumulated Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$5.61B	USD	Point-in-time
Accumulated Deferred Income Taxes	`DeferredTaxLiabilitiesNoncurrent`	$5.15B	USD	Point-in-time
Regulatory Liabilities	`RegulatoryLiabilityNoncurrent`	$513.60M	USD	Point-in-time
Regulatory Liabilities	`RegulatoryLiabilityNoncurrent`	$702.25M	USD	Point-in-time
Derivative Liabilities	`DerivativeLiabilitiesNoncurrent`	$337.10M	USD	Point-in-time
Derivative Liabilities	`DerivativeLiabilitiesNoncurrent`	$413.68M	USD	Point-in-time
Accrued Pension, SERP and PBOP	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.14B	USD	Point-in-time
Accrued Pension, SERP and PBOP	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.41B	USD	Point-in-time
Other Long-Term Liabilities	`OtherLiabilitiesNoncurrent`	$853.26M	USD	Point-in-time
Other Long-Term Liabilities	`OtherLiabilitiesNoncurrent`	$871.50M	USD	Point-in-time
Total Deferred Credits and Other Liabilities	`LiabilitiesNoncurrent`	$8.28B	USD	Point-in-time
Total Deferred Credits and Other Liabilities	`LiabilitiesNoncurrent`	$8.72B	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$8.83B	USD	Point-in-time
Long-Term Debt	`LongTermDebtNoncurrent`	$8.81B	USD	Point-in-time
Noncontrolling Interest - Preferred Stock of Subsidiaries	`RedeemableNoncontrollingInterestEquityPreferredCarryingAmount`	$155.57M	USD	Point-in-time
Noncontrolling Interest - Preferred Stock of Subsidiaries	`RedeemableNoncontrollingInterestEquityPreferredCarryingAmount`	$155.57M	USD	Point-in-time
Common Shares	`CommonStockValue`	$1.67B	USD	Point-in-time
Common Shares	`CommonStockValue`	$1.67B	USD	Point-in-time
Capital Surplus, Paid In	`AdditionalPaidInCapital`	$6.26B	USD	Point-in-time
Capital Surplus, Paid In	`AdditionalPaidInCapital`	$6.25B	USD	Point-in-time
Retained Earnings	`RetainedEarningsAccumulatedDeficit`	$2.80B	USD	Point-in-time
Retained Earnings	`RetainedEarningsAccumulatedDeficit`	$3.18B	USD	Point-in-time
Accumulated Other Comprehensive Loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-66.84M	USD	Point-in-time
Accumulated Other Comprehensive Loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-65.28M	USD	Point-in-time
Treasury Stock	`TreasuryStockValue`	$309.98M	USD	Point-in-time
Treasury Stock	`TreasuryStockValue`	$317.77M	USD	Point-in-time
Common Shareholders' Equity	`StockholdersEquity`	$10.35B	USD	Point-in-time
Common Shareholders' Equity	`StockholdersEquity`	$9.98B	USD	Point-in-time
Common Shareholders' Equity	`StockholdersEquity`	$10.71B	USD	Point-in-time
Common Shareholders' Equity	`StockholdersEquity`	$9.61B	USD	Point-in-time
Total Capitalization	`CapitalizationLongtermDebtAndEquity`	$19.31B	USD	Point-in-time
Total Capitalization	`CapitalizationLongtermDebtAndEquity`	$19.70B	USD	Point-in-time
Commitments and Contingencies (Note 11)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 11)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total Liabilities and Capitalization	`LiabilitiesAndStockholdersEquity`	$32.05B	USD	Point-in-time
Total Liabilities and Capitalization	`LiabilitiesAndStockholdersEquity`	$30.58B	USD	Point-in-time

Income Statement 108 line items

Line Item	Tag	Value	Unit	Period
Operating Revenues	`Revenues`	$1.77B	USD	1 Quarter
Operating Revenues	`Revenues`	$1.93B	USD	1 Quarter
Operating Revenues	`Revenues`	$7.95B	USD	Annual
Operating Revenues	`Revenues`	$1.82B	USD	1 Quarter
Operating Revenues	`Revenues`	$2.06B	USD	1 Quarter
Operating Revenues	`Revenues`	$1.69B	USD	1 Quarter
Operating Revenues	`Revenues`	$7.74B	USD	Annual
Operating Revenues	`Revenues`	$1.78B	USD	1 Quarter
Operating Revenues	`Revenues`	$2.04B	USD	1 Quarter
Operating Revenues	`Revenues`	$7.64B	USD	Annual
Operating Revenues	`Revenues`	$2.51B	USD	1 Quarter
Purchased Power, Fuel and Transmission	`CostOfPurchasedPower`	$3.02B	USD	Annual
Purchased Power, Fuel and Transmission	`CostOfPurchasedPower`	$3.09B	USD	Annual
Purchased Power, Fuel and Transmission	`CostOfPurchasedPower`	$2.50B	USD	Annual
Operations and Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.33B	USD	Annual
Operations and Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.43B	USD	Annual
Operations and Maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.32B	USD	Annual
Depreciation	`Depreciation`	$665.86M	USD	Annual
Depreciation	`Depreciation`	$614.66M	USD	Annual
Depreciation	`Depreciation`	$715.47M	USD	Annual
Amortization of Regulatory Assets, Net	`AmortizationOfRegulatoryAsset`	$71.70M	USD	Annual
Amortization of Regulatory Assets, Net	`AmortizationOfRegulatoryAsset`	$22.34M	USD	Annual
Amortization of Regulatory Assets, Net	`AmortizationOfRegulatoryAsset`	$10.70M	USD	Annual
Energy Efficiency Programs	`EnergyEfficiencyPrograms`	$495.70M	USD	Annual
Energy Efficiency Programs	`EnergyEfficiencyPrograms`	$533.66M	USD	Annual
Energy Efficiency Programs	`EnergyEfficiencyPrograms`	$473.13M	USD	Annual
Taxes Other Than Income Taxes	`TaxesExcludingIncomeAndExciseTaxes`	$561.38M	USD	Annual
Taxes Other Than Income Taxes	`TaxesExcludingIncomeAndExciseTaxes`	$590.57M	USD	Annual
Taxes Other Than Income Taxes	`TaxesExcludingIncomeAndExciseTaxes`	$634.07M	USD	Annual
Total Operating Expenses	`OperatingExpenses`	$5.78B	USD	Annual
Total Operating Expenses	`OperatingExpenses`	$6.11B	USD	Annual
Total Operating Expenses	`OperatingExpenses`	$6.19B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$1.76B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$423.40M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$438.10M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$469.20M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$488.50M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$497.50M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$509.90M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$1.86B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$412.00M	USD	1 Quarter
Operating Income	`OperatingIncomeLoss`	$1.63B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$385.50M	USD	1 Quarter
Interest Expense	`InterestExpense`	$362.11M	USD	Annual
Interest Expense	`InterestExpense`	$400.96M	USD	Annual
Interest Expense	`InterestExpense`	$372.42M	USD	Annual
Other Income, Net	`NonoperatingIncomeExpense`	$24.62M	USD	Annual
Other Income, Net	`NonoperatingIncomeExpense`	$45.92M	USD	Annual
Other Income, Net	`NonoperatingIncomeExpense`	$34.23M	USD	Annual
Income Before Income Tax Expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic`	$1.43B	USD	Annual
Income Before Income Tax Expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic`	$1.50B	USD	Annual
Income Before Income Tax Expense	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic`	$1.30B	USD	Annual
Income Tax Expense	`IncomeTaxExpenseBenefit`	$539.97M	USD	Annual
Income Tax Expense	`IncomeTaxExpenseBenefit`	$555.00M	USD	Annual
Income Tax Expense	`IncomeTaxExpenseBenefit`	$468.30M	USD	Annual
Net Income	`NetIncomeLoss`	$183.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$205.50M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$237.80M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$255.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$886.00M	USD	Annual
Net Income	`NetIncomeLoss`	$267.20M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$209.40M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$949.82M	USD	Annual
Net Income	`NetIncomeLoss`	$231.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$827.07M	USD	Annual
Net Income	`NetIncomeLoss`	$246.00M	USD	1 Quarter
Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$7.52M	USD	Annual
Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$7.52M	USD	Annual
Net Income Attributable to Noncontrolling Interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$7.52M	USD	Annual
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$244.20M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$942.30M	USD	Annual
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$207.50M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$203.60M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$878.49M	USD	Annual
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$229.20M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$265.30M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$181.80M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$235.90M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$253.30M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$819.55M	USD	Annual
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.64	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.83	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.57	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$2.97	USD	Annual
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.65	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.72	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.80	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.74	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$0.77	USD	1 Quarter
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$2.59	USD	Annual
Basic Earnings Per Common Share (in dollars per share)	`EarningsPerShareBasic`	$2.77	USD	Annual
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.72	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.64	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$2.76	USD	Annual
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.57	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$2.96	USD	Annual
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.77	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.65	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.83	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.74	USD	1 Quarter
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$2.58	USD	Annual
Diluted Earnings Per Common Share (in dollars per share)	`EarningsPerShareDiluted`	$0.80	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	316.14M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	317.65M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	317.34M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	318.43M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	317.42M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	318.45M	shares	Annual

Cash Flow Statement 103 line items

Line Item	Tag	Value	Unit	Period
Net Income	`NetIncomeLoss`	$183.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$205.50M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$237.80M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$255.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$886.00M	USD	Annual
Net Income	`NetIncomeLoss`	$267.20M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$209.40M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$949.82M	USD	Annual
Net Income	`NetIncomeLoss`	$231.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$827.07M	USD	Annual
Net Income	`NetIncomeLoss`	$246.00M	USD	1 Quarter
Depreciation	`Depreciation`	$665.86M	USD	Annual
Depreciation	`Depreciation`	$614.66M	USD	Annual
Depreciation	`Depreciation`	$715.47M	USD	Annual
Deferred Income Taxes	`DeferredIncomeTaxExpenseBenefit`	$443.26M	USD	Annual
Deferred Income Taxes	`DeferredIncomeTaxExpenseBenefit`	$491.74M	USD	Annual
Deferred Income Taxes	`DeferredIncomeTaxExpenseBenefit`	$466.46M	USD	Annual
Pension, SERP and PBOP Expense	`PensionAndOtherPostretirementBenefitExpense`	$39.91M	USD	Annual
Pension, SERP and PBOP Expense	`PensionAndOtherPostretirementBenefitExpense`	$96.02M	USD	Annual
Pension, SERP and PBOP Expense	`PensionAndOtherPostretirementBenefitExpense`	$99.06M	USD	Annual
Pension and PBOP Contributions	`PensionAndOtherPostretirementBenefitContributions`	$162.45M	USD	Annual
Pension and PBOP Contributions	`PensionAndOtherPostretirementBenefitContributions`	$158.74M	USD	Annual
Pension and PBOP Contributions	`PensionAndOtherPostretirementBenefitContributions`	$211.65M	USD	Annual
Regulatory Over/(Under) Recoveries, Net	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-6.85M	USD	Annual
Regulatory Over/(Under) Recoveries, Net	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$163.29M	USD	Annual
Regulatory Over/(Under) Recoveries, Net	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-13.34M	USD	Annual
Amortization of Regulatory Assets, Net	`AmortizationOfRegulatoryAsset`	$71.70M	USD	Annual
Amortization of Regulatory Assets, Net	`AmortizationOfRegulatoryAsset`	$22.34M	USD	Annual
Amortization of Regulatory Assets, Net	`AmortizationOfRegulatoryAsset`	$10.70M	USD	Annual
Refunds/(Payments) Related to Spent Nuclear Fuel, Net	`PaymentsRefundsRelatedtoSpentNuclearFuel`	$-297.25M	USD	Annual
Refunds/(Payments) Related to Spent Nuclear Fuel, Net	`PaymentsRefundsRelatedtoSpentNuclearFuel`	$132.14M	USD	Annual
Refunds/(Payments) Related to Spent Nuclear Fuel, Net	`PaymentsRefundsRelatedtoSpentNuclearFuel`	$59.80M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$77.29M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-56.03M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$82.22M	USD	Annual
Receivables and Unbilled Revenues, Net	`IncreaseDecreaseInReceivables`	$39.80M	USD	Annual
Receivables and Unbilled Revenues, Net	`IncreaseDecreaseInReceivables`	$122.14M	USD	Annual
Receivables and Unbilled Revenues, Net	`IncreaseDecreaseInReceivables`	$142.70M	USD	Annual
Fuel, Materials, Supplies and Inventory	`IncreaseDecreaseInInventories`	$-34.11M	USD	Annual
Fuel, Materials, Supplies and Inventory	`IncreaseDecreaseInInventories`	$41.31M	USD	Annual
Fuel, Materials, Supplies and Inventory	`IncreaseDecreaseInInventories`	$-7.75M	USD	Annual
Taxes Receivable/Accrued, Net	`IncreaseDecreaseInIncomeTaxesReceivable`	$323.22M	USD	Annual
Taxes Receivable/Accrued, Net	`IncreaseDecreaseInIncomeTaxesReceivable`	$-234.54M	USD	Annual
Taxes Receivable/Accrued, Net	`IncreaseDecreaseInIncomeTaxesReceivable`	$-30.28M	USD	Annual
Accounts Payable	`IncreaseDecreaseInAccountsPayable`	$-14.13M	USD	Annual
Accounts Payable	`IncreaseDecreaseInAccountsPayable`	$-91.62M	USD	Annual
Accounts Payable	`IncreaseDecreaseInAccountsPayable`	$144.74M	USD	Annual
Other Current Assets and Liabilities, Net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-9.11M	USD	Annual
Other Current Assets and Liabilities, Net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-15.80M	USD	Annual
Other Current Assets and Liabilities, Net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-44.03M	USD	Annual
Net Cash Flows Provided by Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.65B	USD	Annual
Net Cash Flows Provided by Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$2.18B	USD	Annual
Net Cash Flows Provided by Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.43B	USD	Annual
Investments in Property, Plant and Equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.72B	USD	Annual
Investments in Property, Plant and Equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.98B	USD	Annual
Investments in Property, Plant and Equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.60B	USD	Annual
Proceeds from Sales of Marketable Securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$488.79M	USD	Annual
Proceeds from Sales of Marketable Securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$799.16M	USD	Annual
Proceeds from Sales of Marketable Securities	`ProceedsFromSaleAndMaturityOfMarketableSecurities`	$659.34M	USD	Annual
Purchases of Marketable Securities	`PaymentsToAcquireMarketableSecurities`	$717.11M	USD	Annual
Purchases of Marketable Securities	`PaymentsToAcquireMarketableSecurities`	$491.22M	USD	Annual
Purchases of Marketable Securities	`PaymentsToAcquireMarketableSecurities`	$681.27M	USD	Annual
Payments to Acquire Investments	`PaymentsToAcquireInvestments`	$188.96M	USD	Annual
Payments to Acquire Investments	`PaymentsToAcquireInvestments`	$9.78M	USD	Annual
Payments to Acquire Investments	`PaymentsToAcquireInvestments`	$23.35M	USD	Annual
Other Investing Activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-6.29M	USD	Annual
Other Investing Activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-36.95M	USD	Annual
Other Investing Activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-24.16M	USD	Annual
Net Cash Flows Used in Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.66B	USD	Annual
Net Cash Flows Used in Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.15B	USD	Annual
Net Cash Flows Used in Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.59B	USD	Annual
Cash Dividends on Common Shares	`PaymentsOfDividendsCommonStock`	$529.79M	USD	Annual
Cash Dividends on Common Shares	`PaymentsOfDividendsCommonStock`	$564.49M	USD	Annual
Cash Dividends on Common Shares	`PaymentsOfDividendsCommonStock`	$475.23M	USD	Annual
Cash Dividends on Preferred Stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$7.52M	USD	Annual
Cash Dividends on Preferred Stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$7.52M	USD	Annual
Cash Dividends on Preferred Stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$7.52M	USD	Annual
Increase/(Decrease) in Short-Term Debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-242.12M	USD	Annual
Increase/(Decrease) in Short-Term Debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-12.45M	USD	Annual
Increase/(Decrease) in Short-Term Debt	`ProceedsFromRepaymentsOfShortTermDebt`	$285.07M	USD	Annual
Issuance of Long-Term Debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.23B	USD	Annual
Issuance of Long-Term Debt	`ProceedsFromIssuanceOfLongTermDebt`	$725.00M	USD	Annual
Issuance of Long-Term Debt	`ProceedsFromIssuanceOfLongTermDebt`	$800.00M	USD	Annual
Retirements of Long-Term Debt	`RepaymentsOfLongTermDebt`	$216.70M	USD	Annual
Retirements of Long-Term Debt	`RepaymentsOfLongTermDebt`	$200.00M	USD	Annual
Retirements of Long-Term Debt	`RepaymentsOfLongTermDebt`	$576.55M	USD	Annual
Other Financing Activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-15.62M	USD	Annual
Other Financing Activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-33.48M	USD	Annual
Other Financing Activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-18.23M	USD	Annual
Net Cash Flows (Used in)/Provided by Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$-64.84M	USD	Annual
Net Cash Flows (Used in)/Provided by Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$210.64M	USD	Annual
Net Cash Flows (Used in)/Provided by Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$-17.94M	USD	Annual
Net Increase/(Decrease) in Cash and Cash Equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-4.66M	USD	Annual
Net Increase/(Decrease) in Cash and Cash Equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$6.30M	USD	Annual
Net Increase/(Decrease) in Cash and Cash Equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-14.76M	USD	Annual
Cash and Cash Equivalents - Beginning of Year	`Cash`	$43.36M	USD	Point-in-time
Cash and Cash Equivalents - Beginning of Year	`Cash`	$30.25M	USD	Point-in-time
Cash and Cash Equivalents - Beginning of Year	`Cash`	$23.95M	USD	Point-in-time
Cash and Cash Equivalents - Beginning of Year	`Cash`	$38.70M	USD	Point-in-time
Cash and Cash Equivalents - End of Year	`Cash`	$43.36M	USD	Point-in-time
Cash and Cash Equivalents - End of Year	`Cash`	$30.25M	USD	Point-in-time
Cash and Cash Equivalents - End of Year	`Cash`	$23.95M	USD	Point-in-time
Cash and Cash Equivalents - End of Year	`Cash`	$38.70M	USD	Point-in-time

Stockholders Equity 46 line items

Line Item	Tag	Value	Unit	Period
Dividends on Common Shares (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.67	USD	Annual
Dividends on Common Shares (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.78	USD	Annual
Dividends on Common Shares (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.57	USD	Annual
Per Share Par Value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$5.00	USD	Point-in-time
Per Share Par Value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$5.00	USD	Point-in-time
Per Share Par Value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$5.00	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$10.35B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$9.98B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$10.71B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$9.61B	USD	Point-in-time
Net Income	`NetIncomeLoss`	$183.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$205.50M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$237.80M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$255.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$886.00M	USD	Annual
Net Income	`NetIncomeLoss`	$267.20M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$209.40M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$949.82M	USD	Annual
Net Income	`NetIncomeLoss`	$231.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$827.07M	USD	Annual
Net Income	`NetIncomeLoss`	$246.00M	USD	1 Quarter
Dividends on Common Stock	`DividendsCommonStock`	$496.52M	USD	Annual
Dividends on Common Stock	`DividendsCommonStock`	$564.49M	USD	Annual
Dividends on Common Stock	`DividendsCommonStock`	$529.79M	USD	Annual
Dividends on Preferred Stock	`DividendsPreferredStock`	$7.52M	USD	Annual
Dividends on Preferred Stock	`DividendsPreferredStock`	$7.52M	USD	Annual
Dividends on Preferred Stock	`DividendsPreferredStock`	$7.52M	USD	Annual
Issuance of Common Shares	`StockIssuedDuringPeriodValueNewIssues`	$6.61M	USD	Annual
Issuance of Common Shares	`StockIssuedDuringPeriodValueNewIssues`	$-5.56M	USD	Annual
Issuance of Common Shares	`StockIssuedDuringPeriodValueNewIssues`	$9.47M	USD	Annual
Long-Term Incentive Plan Activity	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-6.06M	USD	Annual
Long-Term Incentive Plan Activity	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-6.14M	USD	Annual
Long-Term Incentive Plan Activity	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$-9.57M	USD	Annual
Increase in Treasury Shares	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$63.89M	USD	Annual
Increase in Treasury Shares	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$12.56M	USD	Annual
Increase in Treasury Shares	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$-7.79M	USD	Annual
Other Changes in Shareholders' Equity	`Otherchangesinshareholdersequity`	$-449.00K	USD	Annual
Other Changes in Shareholders' Equity	`Otherchangesinshareholdersequity`	$3.65M	USD	Annual
Other Changes in Shareholders' Equity	`Otherchangesinshareholdersequity`	$9.32M	USD	Annual
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$7.17M	USD	Annual
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-27.98M	USD	Annual
Other Comprehensive Income (Loss)	`OtherComprehensiveIncomeLossNetOfTax`	$1.56M	USD	Annual
Ending balance	`StockholdersEquity`	$10.35B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$9.98B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$10.71B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$9.61B	USD	Point-in-time

Comprehensive Income 29 line items

Line Item	Tag	Value	Unit	Period
Net Income	`NetIncomeLoss`	$183.70M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$205.50M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$237.80M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$255.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$886.00M	USD	Annual
Net Income	`NetIncomeLoss`	$267.20M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$209.40M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$949.82M	USD	Annual
Net Income	`NetIncomeLoss`	$231.10M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$827.07M	USD	Annual
Net Income	`NetIncomeLoss`	$246.00M	USD	1 Quarter
Qualified Cash Flow Hedging Instruments	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.04M	USD	Annual
Qualified Cash Flow Hedging Instruments	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.08M	USD	Annual
Qualified Cash Flow Hedging Instruments	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$2.14M	USD	Annual
Changes in Unrealized Gains/(Losses) on Marketable Securities	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-2.59M	USD	Annual
Changes in Unrealized Gains/(Losses) on Marketable Securities	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$2.29M	USD	Annual
Changes in Unrealized Gains/(Losses) on Marketable Securities	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$315.00K	USD	Annual
Changes in Funded Status of Pension, SERP and PBOP Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$2.87M	USD	Annual
Changes in Funded Status of Pension, SERP and PBOP Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$30.33M	USD	Annual
Changes in Funded Status of Pension, SERP and PBOP Benefit Plans	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-7.67M	USD	Annual
Other Comprehensive Income/(Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$7.17M	USD	Annual
Other Comprehensive Income/(Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$-27.98M	USD	Annual
Other Comprehensive Income/(Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$1.56M	USD	Annual
Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$7.52M	USD	Annual
Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$7.52M	USD	Annual
Comprehensive Income Attributable to Noncontrolling Interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$7.52M	USD	Annual
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$791.57M	USD	Annual
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$885.65M	USD	Annual
Comprehensive Income	`ComprehensiveIncomeNetOfTax`	$943.86M	USD	Annual

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