2.2.0.7 true Consolidated Condensed Statements of Income and Comprehensive Income (TAMPA ELECTRIC CO, USD $) 00202 - Statement - Consolidated Condensed Statements of Income and Comprehensive Income true false In Millions false false 1 USD true false false false TAMPA ELECTRIC CO dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi te_TampaElectricCoMember dei_LegalEntityAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 2 USD true false false false TAMPA ELECTRIC CO dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi te_TampaElectricCoMember dei_LegalEntityAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 3 USD true false false false TAMPA ELECTRIC CO dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi te_TampaElectricCoMember dei_LegalEntityAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 4 USD true false false false TAMPA ELECTRIC CO dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi te_TampaElectricCoMember dei_LegalEntityAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 2 Revenues 2 us-gaap_RevenuesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Electric (includes franchise fees and gross receipts taxes) 2 us-gaap_ElectricUtilityRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 true true false false 553100000 553.1 false false false 2 true true false false 563500000 563.5 false false false 3 true true false false 1078100000 1078.1 false false false 4 true true false false 1071000000 1071.0 false false false xbrli:monetaryItemType monetary The aggregate revenue, whether regulated or unregulated, derived from the generation, transmission and distribution of electricity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 4 Gas (includes franchise fees and gross receipts taxes) 2 us-gaap_GasDomesticRegulatedRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 112400000 112.4 false false false 2 false true false false 99700000 99.7 false false false 3 false true false false 294100000 294.1 false false false 4 false true false false 246200000 246.2 false false false xbrli:monetaryItemType monetary Revenue derived from the regulated (by a federal, state, or local government or agency) generation, transmission and distribution of [natural] gas. No authoritative reference available. false 5 Total revenues 2 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 665500000 665.5 false false false 2 false true false false 663200000 663.2 false false false 3 false true false false 1372200000 1372.2 false false false 4 false true false false 1317200000 1317.2 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 true 6 Regulated operations/Operations 2 us-gaap_CostOfRevenueAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 7 Fuel 2 us-gaap_FuelCosts us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 185400000 185.4 false false false 2 false true false false 225500000 225.5 false false false 3 false true false false 349400000 349.4 false false false 4 false true false false 454200000 454.2 false false false xbrli:monetaryItemType monetary Fuel costs incurred that are directly related to goods produced and sold and services rendered during the reporting period. No authoritative reference available. false 8 Purchased power 2 us-gaap_CostOfPurchasedPower us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 49100000 49.1 false false false 2 false true false false 56100000 56.1 false false false 3 false true false false 106300000 106.3 false false false 4 false true false false 98300000 98.3 false false false xbrli:monetaryItemType monetary Cost of electricity purchased and sold during the reporting period. No authoritative reference available. false 9 Cost of natural gas sold 2 us-gaap_CostOfGoodsSoldOilAndGas us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 59400000 59.4 false false false 2 false true false false 50900000 50.9 false false false 3 false true false false 175400000 175.4 false false false 4 false true false false 139200000 139.2 false false false xbrli:monetaryItemType monetary Total costs related to oil and gas produced and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 10 Other 2 us-gaap_OtherCostAndExpenseOperating us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 96500000 96.5 false false false 2 false true false false 80900000 80.9 false false false 3 false true false false 184200000 184.2 false false false 4 false true false false 157800000 157.8 false false false xbrli:monetaryItemType monetary The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Article 5 false 11 Maintenance 2 us-gaap_UtilitiesOperatingExpenseMaintenance us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 31600000 31.6 false false false 2 false true false false 31800000 31.8 false false false 3 false true false false 61600000 61.6 false false false 4 false true false false 68000000 68.0 false false false xbrli:monetaryItemType monetary Discloses the amount of operating expense for the period for routine plant maintenance and repairs. No authoritative reference available. false 12 Depreciation and amortization 2 us-gaap_DepreciationAndAmortization us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 65000000 65.0 false false false 2 false true false false 60300000 60.3 false false false 3 false true false false 129400000 129.4 false false false 4 false true false false 119100000 119.1 false false false xbrli:monetaryItemType monetary The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 13 Taxes, federal and state 2 us-gaap_UtilitiesOperatingExpenseTaxes us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 37000000 37.0 false false false 2 false true false false 30400000 30.4 false false false 3 false true false false 75800000 75.8 false false false 4 false true false false 46900000 46.9 false false false xbrli:monetaryItemType monetary Discloses the amount of operating expense for the period related to taxes other income . No authoritative reference available. false 14 Taxes, other than income 2 us-gaap_TaxesExcludingIncomeAndExciseTaxes us-gaap true debit duration No definition available. false false false false false false false false false false false false 1 false true false false 45200000 45.2 false false false 2 false true false false 44200000 44.2 false false false 3 false true false false 94500000 94.5 false false false 4 false true false false 92400000 92.4 false false false xbrli:monetaryItemType monetary All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax. No authoritative reference available. false 15 Total expenses 2 us-gaap_CostsAndExpenses us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 569200000 569.2 false false false 2 false true false false 580100000 580.1 false false false 3 false true false false 1176600000 1176.6 false false false 4 false true false false 1175900000 1175.9 false false false xbrli:monetaryItemType monetary Total costs of sales and operating expenses for the period. No authoritative reference available. true 16 Income from operations 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 96300000 96.3 false false false 2 false true false false 83100000 83.1 false false false 3 false true false false 195600000 195.6 false false false 4 false true false false 141300000 141.3 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. true 17 Other income (expense) 2 us-gaap_NonoperatingIncomeExpenseAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 18 Allowance for other funds used during construction 2 us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 300000 0.3 false false false 2 false true false false 2500000 2.5 false false false 3 false true false false 1300000 1.3 false false false 4 false true false false 5800000 5.8 false false false xbrli:monetaryItemType monetary Total increase in earnings in the period representing the cost of equity (rate of return) and borrowed funds (interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 71 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 90 -Paragraph 8 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 92 -Paragraph 8, 9, 12 false 19 Taxes, non-utility federal and state 2 us-gaap_OtherTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -100000 -0.1 false false false 2 false true false false -300000 -0.3 false false false 3 false true false false -300000 -0.3 false false false 4 false true false false -400000 -0.4 false false false xbrli:monetaryItemType monetary The component of income tax expense representing amounts paid or payable (or refundable) which are classified as "income taxes" as determined by applying the provisions of enacted tax law to other than the taxable income (loss) from continuing operations for the period. Items affecting income taxes and required to be disclosed, but not included elsewhere, would also be designated as "Other". Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph c, d, e, f false 20 Other income, net 2 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 800000 0.8 false false false 2 false true false false 1200000 1.2 false false false 3 false true false false 1600000 1.6 false false false 4 false true false false 2200000 2.2 false false false xbrli:monetaryItemType monetary The net amount of other nonoperating income and expense, which does not qualify for separate disclosure on the income statement under materiality guidelines. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 21 Total other income 2 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1000000 1.0 false false false 2 false true false false 3400000 3.4 false false false 3 false true false false 2600000 2.6 false false false 4 false true false false 7600000 7.6 false false false xbrli:monetaryItemType monetary The aggregate amount of income (expense) from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 true 22 Interest charges 2 us-gaap_InterestExpenseAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 23 Interest on long-term debt 2 us-gaap_InterestExpenseDebt us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 32800000 32.8 false false false 2 false true false false 31400000 31.4 false false false 3 false true false false 65500000 65.5 false false false 4 false true false false 62800000 62.8 false false false xbrli:monetaryItemType monetary Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 false 24 Interest expense/Other interest 2 us-gaap_InterestExpenseOther us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 2800000 2.8 false false false 2 false true false false 3000000 3.0 false false false 3 false true false false 5600000 5.6 false false false 4 false true false false 5800000 5.8 false false false xbrli:monetaryItemType monetary Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 6 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-BRD -Chapter 4 -Paragraph 55 -IssueDate 2006-05-01 false 25 Allowance for borrowed funds used during construction 2 us-gaap_PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false -200000 -0.2 false false false 2 false true false false -1000000 -1.0 false false false 3 false true false false -800000 -0.8 false false false 4 false true false false -2300000 -2.3 false false false xbrli:monetaryItemType monetary The component of the allowance for funds used during construction during the period comprised of interest on borrowed funds used in financing the construction of regulated assets, which may be reflected as a reduction of interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 71 -Paragraph 15 false 26 Total interest charges 2 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 35400000 35.4 false false false 2 false true false false 33400000 33.4 false false false 3 false true false false 70300000 70.3 false false false 4 false true false false 66300000 66.3 false false false xbrli:monetaryItemType monetary The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 true 27 Net income 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 61900000 61.9 false false false 2 false true false false 53100000 53.1 false false false 3 false true false false 127900000 127.9 false false false 4 false true false false 82600000 82.6 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 28 Other comprehensive income (loss), net of tax 2 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract us-gaap true na duration No definition available. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 29 Net unrealized gain (loss) on cash flow hedges 2 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 200000 0.2 false false false 2 false true false false 100000 0.1 false false false 3 false true false false 400000 0.4 false false false 4 false true false false 300000 0.3 false false false xbrli:monetaryItemType monetary Change in accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, net of tax effect. The after tax effect change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 17, 20 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 121 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 46 false 30 Other comprehensive (loss) income, net of tax 2 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 200000 0.2 false false false 2 false true false false 100000 0.1 false false false 3 false true false false 400000 0.4 false false false 4 false true false false 300000 0.3 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Net of Tax, for the period. Includes deferred gains (losses) on qualifying hedges, unrealized holding gains (losses) on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 23, 24, 25 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 true 31 Comprehensive income attributable to TECO Energy, Inc. 2 us-gaap_ComprehensiveIncomeNetOfTax us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 true true false false 62100000 62.1 false false false 2 true true false false 53200000 53.2 false false false 3 true true false false 128300000 128.3 false false false 4 true true false false 82900000 82.9 false false false xbrli:monetaryItemType monetary The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A5 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 30 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 8, 9, 10, 11, 12, 13, 14 true 4 30 false HundredThousands UnKnown UnKnown false true