| Line | Label | Object Class | Period Type | Balance | Report Element Name | 
        
           | 1 | 470000 - Disclosure - Other Liabilities | Network | * | * | http://fasb.org/us-gaap/role/disclosure/OtherLiabilities | 
        
           | 2 | Other Liabilities Disclosure [Abstract] | Abstract |  |  | us-gaap:OtherLiabilitiesDisclosureAbstract | 
        
           | 3 | Accelerated Share Repurchases [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:AcceleratedShareRepurchasesTextBlock | 
        
           | 4 | Accelerated Share Repurchases [Table] | Table |  |  | us-gaap:AcceleratedShareRepurchasesTable | 
        
           | 5 | Accelerated Share Repurchases, Date [Axis] | Axis |  |  | us-gaap:AcceleratedShareRepurchasesDateAxis | 
        
           | 6 | Accelerated Share Repurchases, Date [Domain] | Member |  |  | us-gaap:AcceleratedShareRepurchasesDateDomain | 
        
           | 7 | Accelerated Share Repurchases [Line Items] | LineItems |  |  | us-gaap:AcceleratedShareRepurchasesLineItems | 
        
           | 8 | Accelerated Share Repurchases, Initial Price Paid Per Share | Concept (Share) | For Period |  | us-gaap:AcceleratedShareRepurchasesInitialPricePaidPerShare | 
        
           | 9 | Accelerated Share Repurchases, Final Price Paid Per Share | Concept (Share) | For Period |  | us-gaap:AcceleratedShareRepurchasesFinalPricePaidPerShare | 
        
           | 10 | Accelerated Share Repurchases, Settlement (Payment) or Receipt | Concept (Monetary) | As Of | Debit | us-gaap:AcceleratedShareRepurchasesSettlementPaymentOrReceipt | 
        
           | 11 | Accelerated Share Repurchases, Adjustment to Recorded Amount | Concept (Monetary) | For Period | Debit | us-gaap:AcceleratedShareRepurchasesAdjustmentToRecordedAmount | 
        
           | 12 | Accelerated Share Repurchases, Cash or Stock Settlement | Concept (Text/String) | For Period |  | us-gaap:AcceleratedShareRepurchasesCashOrStockSettlement | 
        
           | 13 | Derivative Financial Instruments Indexed to, and Potentially Settled in, Entity's Own Stock [Abstract] | Abstract |  |  | us-gaap:DerivativeFinancialInstrumentsIndexedToAndPotentiallySettledInEntitysOwnStockAbstract | 
        
           | 14 | Option Indexed to Issuer's Equity, Description [Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:OptionIndexedToIssuersEquityDescriptionTextBlock | 
        
           | 15 | Schedule of Options Indexed to Issuer's Equity [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:ScheduleOfOptionsIndexedToIssuersEquityTextBlock | 
        
           | 16 | Option Indexed to Issuer's Equity [Table] | Table |  |  | us-gaap:OptionIndexedToIssuersEquityTable | 
        
           | 17 | Option Indexed to Issuer's Equity, Type [Axis] | Axis |  |  | us-gaap:OptionIndexedToIssuersEquityTypeAxis | 
        
           | 18 | Option Indexed to Issuer's Equity, Type [Domain] | Member |  |  | us-gaap:OptionIndexedToIssuersEquityTypeDomain | 
        
           | 19 | Call Option [Member] | Member |  |  | us-gaap:CallOptionMember | 
        
           | 20 | Put Option [Member] | Member |  |  | us-gaap:PutOptionMember | 
        
           | 21 | Exchange Traded Options [Member] | Member |  |  | us-gaap:ExchangeTradedOptionsMember | 
        
           | 22 | Share-based Payment Arrangement, Option [Member] | Member |  |  | us-gaap:EmployeeStockOptionMember | 
        
           | 23 | Position [Axis] | Axis |  |  | us-gaap:PositionAxis | 
        
           | 24 | Position [Domain] | Member |  |  | us-gaap:PositionDomain | 
        
           | 25 | Long [Member] | Member |  |  | us-gaap:LongMember | 
        
           | 26 | Short [Member] | Member |  |  | us-gaap:ShortMember | 
        
           | 27 | Option Indexed to Issuer's Equity [Line Items] | LineItems |  |  | us-gaap:OptionIndexedToIssuersEquityLineItems | 
        
           | 28 | Option Indexed to Issuer's Equity, Strike Price | Concept (Share) | For Period |  | us-gaap:OptionIndexedToIssuersEquityStrikePrice1 | 
        
           | 29 | Option Indexed to Issuer's Equity, Shares | Concept (Shares) | For Period |  | us-gaap:OptionIndexedToIssuersEquityShares | 
        
           | 30 | Option Indexed to Issuer's Equity, Indexed Shares | Concept (Shares) | As Of |  | us-gaap:OptionIndexedToIssuersEquityIndexedShares | 
        
           | 31 | Option Indexed to Issuer's Equity, Settlement Date | Concept (Date) | For Period |  | us-gaap:OptionIndexedToIssuersEquitySettlementDateOrDates | 
        
           | 32 | Option Indexed to Issuer's Equity, Classification | Concept (Text/String) | For Period |  | us-gaap:OptionIndexedToIssuersEquityClassification | 
        
           | 33 | Option Indexed to Issuer's Equity, Settlement Alternatives | Concept (Text/String) | For Period |  | us-gaap:OptionIndexedToIssuersEquitySettlementAlternatives | 
        
           | 34 | Option Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value | Concept (Monetary) | As Of | Debit | us-gaap:OptionIndexedToIssuersEquitySettlementAlternativesCashAtFairValue | 
        
           | 35 | Option Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value | Concept (Shares) | As Of |  | us-gaap:OptionIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue | 
        
           | 36 | Option Indexed to Issuer's Equity, Contract Reclassification | Concept (Text/String) | For Period |  | us-gaap:OptionIndexedToIssuersEquityContractReclassification | 
        
           | 37 | Option Indexed to Issuer's Equity, Redeemable Stock, Redemption Requirements, Amount | Concept (Monetary) | As Of | Credit | us-gaap:OptionIndexedToIssuersEquityRedeemableStockRedemptionRequirementsAmount1 | 
        
           | 38 | Schedule of Forward Contracts Indexed to Issuer's Equity [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:ScheduleOfForwardContractsIndexedToIssuersEquityTextBlock | 
        
           | 39 | Forward Contract Indexed to Issuer's Equity [Table] | Table |  |  | us-gaap:ForwardContractIndexedToIssuersEquityTable | 
        
           | 40 | Forward Contract Indexed to Issuer's Equity, Type [Axis] | Axis |  |  | us-gaap:ForwardContractIndexedToIssuersEquityTypeAxis | 
        
           | 41 | Forward Contract Indexed to Issuer's Equity, Type [Domain] | Member |  |  | us-gaap:ForwardContractIndexedToIssuersEquityTypeDomain | 
        
           | 42 | Forward Contract Indexed to Issuer's Equity [Line Items] | LineItems |  |  | us-gaap:ForwardContractIndexedToIssuersEquityLineItems | 
        
           | 43 | Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share | Concept (Share) | For Period |  | us-gaap:ForwardContractIndexedToIssuersEquityForwardRate | 
        
           | 44 | Forward Contract Indexed to Issuer's Equity, Shares | Concept (Shares) | For Period |  | us-gaap:ForwardContractIndexedToIssuersEquityShares | 
        
           | 45 | Forward Contract Indexed to Issuer's Equity, Indexed Shares | Concept (Shares) | As Of |  | us-gaap:ForwardContractIndexedToIssuersEquityIndexedShares | 
        
           | 46 | Forward Contract Indexed to Issuer's Equity, Settlement Date | Concept (Date) | For Period |  | us-gaap:ForwardContractIndexedToIssuersEquitySettlementDateOrDates | 
        
           | 47 | Forward Contract Indexed to Issuer's Equity, Classification | Concept (Text/String) | For Period |  | us-gaap:ForwardContractIndexedToIssuersEquityClassification | 
        
           | 48 | Forward Contract Indexed to Issuer's Equity, Settlement Alternatives | Concept (Text/String) | For Period |  | us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternatives | 
        
           | 49 | Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Cash, at Fair Value | Concept (Monetary) | As Of | Debit | us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesCashAtFairValue | 
        
           | 50 | Forward Contract Indexed to Issuer's Equity, Settlement Alternatives, Shares, at Fair Value | Concept (Shares) | As Of |  | us-gaap:ForwardContractIndexedToIssuersEquitySettlementAlternativesSharesAtFairValue | 
        
           | 51 | Forward Contract Indexed to Issuer's Equity, Contract Reclassification | Concept (Text/String) | For Period |  | us-gaap:ForwardContractIndexedToIssuersEquityContractReclassification | 
        
           | 52 | Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract] | Abstract |  |  | us-gaap:OtherLiabilitiesAndSharesSubjectToMandatoryRedemptionAbstract | 
        
           | 53 | Schedule of Other Assets and Other Liabilities [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock | 
        
           | 54 | Other Liabilities Disclosure [Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:OtherLiabilitiesDisclosureTextBlock | 
        
           | 55 | Other Liabilities, Current [Abstract] | Abstract |  |  | us-gaap:OtherLiabilitiesCurrentAbstract | 
        
           | 56 | Restructuring Reserve, Current | Concept (Monetary) | As Of | Credit | us-gaap:RestructuringReserveCurrent | 
        
           | 57 | Deposit Liability, Current | Concept (Monetary) | As Of | Credit | us-gaap:DepositLiabilityCurrent | 
        
           | 58 | Refundable Gas Costs | Concept (Monetary) | As Of | Credit | us-gaap:RefundableGasCosts | 
        
           | 59 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Current | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent | 
        
           | 60 | Other Sundry Liabilities, Current | Concept (Monetary) | As Of | Credit | us-gaap:OtherSundryLiabilitiesCurrent | 
        
           | 61 | Other Liabilities, Current | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilitiesCurrent | 
        
           | 62 | Other Liabilities, Noncurrent [Abstract] | Abstract |  |  | us-gaap:OtherLiabilitiesNoncurrentAbstract | 
        
           | 63 | Contributions in Aid of Construction | Concept (Monetary) | As Of | Credit | us-gaap:ContributionsInAidOfConstruction | 
        
           | 64 | Other Sundry Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherSundryLiabilitiesNoncurrent | 
        
           | 65 | Deferred Tax and Other Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:DeferredTaxAndOtherLiabilitiesNoncurrent | 
        
           | 66 | Other Liabilities and Deferred Revenue, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilitiesAndDeferredRevenueNoncurrent | 
        
           | 67 | Other Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilitiesNoncurrent | 
        
           | 68 | Other Liabilities, Unclassified [Abstract] | Abstract |  |  | us-gaap:OtherLiabilitiesUnclassifiedAbstract | 
        
           | 69 | Estimated Litigation Liability | Concept (Monetary) | As Of | Credit | us-gaap:LitigationReserve | 
        
           | 70 | Guaranty Liabilities | Concept (Monetary) | As Of | Credit | us-gaap:GuarantyLiabilities | 
        
           | 71 | Letters of Credit Outstanding, Amount | Concept (Monetary) | As Of | Credit | us-gaap:LettersOfCreditOutstandingAmount | 
        
           | 72 | Restructuring Reserve | Concept (Monetary) | As Of | Credit | us-gaap:RestructuringReserve | 
        
           | 73 | Off-market Lease, Unfavorable | Concept (Monetary) | As Of | Credit | us-gaap:OffMarketLeaseUnfavorable | 
        
           | 74 | Lease Deposit Liability | Concept (Monetary) | As Of | Credit | us-gaap:LeaseDepositLiability | 
        
           | 75 | Financial Services Liabilities | Concept (Monetary) | As Of | Credit | us-gaap:FinancialServicesLiabilities | 
        
           | 76 | Advance Rent | Concept (Monetary) | As Of | Credit | us-gaap:AdvanceRent | 
        
           | 77 | Deferred Gain on Sale of Property | Concept (Monetary) | As Of | Credit | us-gaap:DeferredGainOnSaleOfProperty | 
        
           | 78 | Deferred Long-term Liability Charges | Concept (Monetary) | As Of | Credit | us-gaap:DeferredLongTermLiabilityCharges | 
        
           | 79 | Deferred Rent Credit | Concept (Monetary) | As Of | Credit | us-gaap:DeferredRentCredit | 
        
           | 80 | Incentive from Lessor | Concept (Monetary) | As Of | Credit | us-gaap:IncentiveFromLessor | 
        
           | 81 | Deferred Lease Income, after Accumulated Amortization | Concept (Monetary) | As Of | Credit | us-gaap:DeferredRevenueLeasesNet | 
        
           | 82 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmount | 
        
           | 83 | Municipal Investment Agreements | Concept (Monetary) | As Of | Credit | us-gaap:MunicipalInvestmentAgreements | 
        
           | 84 | Other Sundry Liabilities | Concept (Monetary) | As Of | Credit | us-gaap:OtherSundryLiabilities | 
        
           | 85 | Other Liabilities | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilities | 
        
           | 86 | Other Liabilities [Abstract] | Abstract |  |  | us-gaap:OtherLiabilitiesAbstract | 
        
           | 87 | Other Liabilities, Current | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilitiesCurrent | 
        
           | 88 | Other Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilitiesNoncurrent | 
        
           | 89 | Other Liabilities, Total | Concept (Monetary) | As Of | Credit | us-gaap:OtherLiabilities | 
        
           | 90 | Other Sundry Liabilities [Abstract] | Abstract |  |  | us-gaap:OtherSundryLiabilitiesAbstract | 
        
           | 91 | Other Sundry Liabilities, Current | Concept (Monetary) | As Of | Credit | us-gaap:OtherSundryLiabilitiesCurrent | 
        
           | 92 | Other Sundry Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherSundryLiabilitiesNoncurrent | 
        
           | 93 | Other Sundry Liabilities, Total | Concept (Monetary) | As Of | Credit | us-gaap:OtherSundryLiabilities | 
        
           | 94 | Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent [Abstract] | Abstract |  |  | us-gaap:PensionAndOtherPostretirementAndPostemploymentBenefitPlansNoncurrentLiabilitiesAbstract | 
        
           | 95 | Liability, Defined Benefit Pension Plan, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent | 
        
           | 96 | Liability, Other Postretirement Defined Benefit Plan, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent | 
        
           | 97 | Liability, Other Retirement Benefits, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:OtherPostretirementBenefitsPayableNoncurrent | 
        
           | 98 | Postemployment Benefits Liability, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:PostemploymentBenefitsLiabilityNoncurrent | 
        
           | 99 | Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent, Total | Concept (Monetary) | As Of | Credit | us-gaap:PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent | 
        
           | 100 | Liability, Retirement and Postemployment Benefits [Abstract] | Abstract |  |  | us-gaap:PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesAbstract | 
        
           | 101 | Liability, Defined Benefit Pension Plan | Concept (Monetary) | As Of | Credit | us-gaap:DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities | 
        
           | 102 | Liability, Other Postretirement Defined Benefit Plan | Concept (Monetary) | As Of | Credit | us-gaap:OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent | 
        
           | 103 | Liability, Other Retirement Benefits | Concept (Monetary) | As Of | Credit | us-gaap:OtherPostretirementBenefitsPayableCurrentAndNoncurrent | 
        
           | 104 | Postemployment Benefits Liability | Concept (Monetary) | As Of | Credit | us-gaap:PostemploymentBenefitsLiabilityCurrentAndNoncurrent | 
        
           | 105 | Liability, Retirement and Postemployment Benefits, Total | Concept (Monetary) | As Of | Credit | us-gaap:PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrentAndNoncurrent | 
        
           | 106 | Other Current Liabilities [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:OtherCurrentLiabilitiesTableTextBlock | 
        
           | 107 | Other Noncurrent Liabilities [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:OtherNoncurrentLiabilitiesTableTextBlock | 
        
           | 108 | Other Liabilities [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:OtherLiabilitiesTableTextBlock | 
        
           | 109 | Financial Instruments Subject to Mandatory Redemption Disclosure [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:SharesSubjectToMandatoryRedemptionDisclosureTextBlock | 
        
           | 110 | Schedule of Financial Instruments Subject to Mandatory Redemption [Table] | Table |  |  | us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionTable | 
        
           | 111 | Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis] | Axis |  |  | us-gaap:ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis | 
        
           | 112 | Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain] | Member |  |  | us-gaap:SharesSubjectToMandatoryRedemptionFinancialInstrumentDomain | 
        
           | 113 | Securities Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:SecuritiesSubjectToMandatoryRedemptionMember | 
        
           | 114 | Common Stock Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:CommonStockSubjectToMandatoryRedemptionMember | 
        
           | 115 | Debentures Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:DebenturesSubjectToMandatoryRedemptionMember | 
        
           | 116 | Derivatives Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:DerivativesSubjectToMandatoryRedemptionMember | 
        
           | 117 | Mandatorily Redeemable Preferred Stock [Member] | Member |  |  | us-gaap:MandatorilyRedeemablePreferredStockMember | 
        
           | 118 | Convertible Preferred Stock Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:ConvertiblePreferredStockSubjectToMandatoryRedemptionMember | 
        
           | 119 | Cumulative Preferred Stock Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:CumulativePreferredStockSubjectToMandatoryRedemptionMember | 
        
           | 120 | Noncumulative Preferred Stock Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:NoncumulativePreferredStockSubjectToMandatoryRedemptionMember | 
        
           | 121 | Participating Preferred Stock Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:ParticipatingPreferredStockSubjectToMandatoryRedemptionMember | 
        
           | 122 | Subordinated Debentures Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:SubordinatedDebenturesSubjectToMandatoryRedemptionMember | 
        
           | 123 | Warrants and Rights Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:WarrantsAndRightsSubjectToMandatoryRedemptionMember | 
        
           | 124 | Trust Preferred Securities Subject to Mandatory Redemption [Member] | Member |  |  | us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember | 
        
           | 125 | Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] | LineItems |  |  | us-gaap:SharesSubjectToMandatoryRedemptionBySettlementTermsLineItems | 
        
           | 126 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Description | Concept (Text/String) | For Period |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsDescription | 
        
           | 127 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount [Abstract] | Abstract |  |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmountAbstract | 
        
           | 128 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Current | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmountCurrent | 
        
           | 129 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent | 
        
           | 130 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Total | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsAmount | 
        
           | 131 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Number of Shares | Concept (Shares) | As Of |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsNumberOfShares | 
        
           | 132 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Fair Value of Shares | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsFairValueOfShares | 
        
           | 133 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Impact of Changes in Fair Value of Shares on Amount | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsImpactOfChangesInFairValueOfSharesOnAmount | 
        
           | 134 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Impact of Changes in Fair Value of Shares on Number of Shares | Concept (Shares) | As Of |  | us-gaap:FinancialInstrumentsSubjectToMandatoryRedemptionSettlementTermsImpactOfChangesInFairValueOfSharesOnNumberOfShares | 
        
           | 135 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Maximum Amount | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsMaximumAmount | 
        
           | 136 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Maximum Number of Shares | Concept (Shares) | As Of |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsMaximumNumberOfShares | 
        
           | 137 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Contract Limit | Concept (Text/String) | For Period |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsContractLimit | 
        
           | 138 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Number of Shares Indexed | Concept (Shares) | As Of |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsNumberOfSharesIndexed | 
        
           | 139 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Forward Price or Option Strike Price, Shares, Settlement Date | Concept (Date) | For Period |  | us-gaap:FinancialInstrumentsSubjectToMandatoryRedemptionSettlementTermsForwardPriceOrOptionStrikePriceSharesSettlementDate | 
        
           | 140 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Reason for Uncertain Redemption | Concept (Text/String) | For Period |  | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsReasonForUncertainRedemption | 
        
           | 141 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Excess of Liabilities over Assets | Concept (Monetary) | As Of | Credit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsExcessOfLiabilitiesOverAssets | 
        
           | 142 | Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Excess of Assets over Liabilities | Concept (Monetary) | As Of | Debit | us-gaap:SharesSubjectToMandatoryRedemptionSettlementTermsExcessOfAssetsOverLiabilities | 
        
           | 143 | Financial Instrument Subject to Mandatory Redemption, Par Value Per Share | Concept (Share) | As Of |  | us-gaap:FinancialInstrumentSubjectToMandatoryRedemptionParValuePerShare | 
        
           | 144 | Warrants and Rights Note Disclosure [Abstract] | Abstract |  |  | us-gaap:WarrantsAndRightsNoteDisclosureAbstract | 
        
           | 145 | Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock | 
        
           | 146 | Class of Warrant or Right [Table] | Table |  |  | us-gaap:ClassOfWarrantOrRightTable | 
        
           | 147 | Class of Warrant or Right [Axis] | Axis |  |  | us-gaap:ClassOfWarrantOrRightAxis | 
        
           | 148 | Class of Warrant or Right [Domain] | Member |  |  | us-gaap:ClassOfWarrantOrRightDomain | 
        
           | 149 | Class of Warrant or Right [Line Items] | LineItems |  |  | us-gaap:ClassOfWarrantOrRightLineItems | 
        
           | 150 | Class of Warrant or Right, Title of Security Warrants or Rights Outstanding | Concept (Text/String) | For Period |  | us-gaap:ClassOfWarrantOrRightTitleOfSecurityWarrantsOrRightsOutstanding | 
        
           | 151 | Class of Warrant or Right, Date from which Warrants or Rights Exercisable | Concept (Date) | For Period |  | us-gaap:ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable | 
        
           | 152 | Class of Warrant or Right, Number of Securities Called by Warrants or Rights | Concept (Shares) | As Of |  | us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights | 
        
           | 153 | Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | Concept (Shares) | As Of |  | us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight | 
        
           | 154 | Class of Warrant or Right, Exercise Price of Warrants or Rights | Concept (Share) | As Of |  | us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | 
        
           | 155 | Class of Warrant or Right, Expense or Revenue Recognized | Concept (Text/String) | For Period |  | us-gaap:ClassOfWarrantOrRightExpenseOrRevenueRecognized | 
        
           | 156 | Warrant or Right, Reason for Issuance, Description | Concept (Text/String) | For Period |  | us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees | 
        
           | 157 | Class of Warrant or Right, Unissued | Concept (Shares) | As Of |  | us-gaap:ClassOfWarrantOrRightUnissued | 
        
           | 158 | Class of Warrant or Right, Outstanding | Concept (Shares) | As Of |  | us-gaap:ClassOfWarrantOrRightOutstanding | 
        
           | 159 | Warrants and Rights Outstanding | Concept (Monetary) | As Of | Credit | us-gaap:WarrantsAndRightsOutstanding | 
        
           | 160 | Deferred Income Taxes and Other Liabilities [Abstract] | Abstract |  |  | us-gaap:DeferredIncomeTaxesAndOtherLiabilitiesAbstract | 
        
           | 161 | Deferred Income Taxes and Other Tax Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent | 
        
           | 162 | Deferred Income Taxes and Other Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:DeferredIncomeTaxesAndOtherLiabilitiesNoncurrent | 
        
           | 163 | Additional Other Liabilities Disclosure [Abstract] | Abstract |  |  | us-gaap:AdditionalOtherLiabilitiesDisclosureAbstract | 
        
           | 164 | Deferred Credits and Other Liabilities [Abstract] | Abstract |  |  | us-gaap:DeferredCreditsAndOtherLiabilitiesAbstract | 
        
           | 165 | Deferred Credits and Other Liabilities, Current | Concept (Monetary) | As Of | Credit | us-gaap:DeferredCreditsAndOtherLiabilitiesCurrent | 
        
           | 166 | Deferred Credits and Other Liabilities, Noncurrent | Concept (Monetary) | As Of | Credit | us-gaap:DeferredCreditsAndOtherLiabilitiesNoncurrent | 
        
           | 167 | Deferred Credits and Other Liabilities | Concept (Monetary) | As Of | Credit | us-gaap:DeferredCreditsAndOtherLiabilities | 
        
           | 168 | Below Market Lease [Abstract] | Abstract |  |  | us-gaap:BelowMarketLeaseAbstract | 
        
           | 169 | Below Market Lease [Roll Forward] | Abstract |  |  | us-gaap:BelowMarketLeaseRollForward | 
        
           | 170 | Below Market Lease, Net, Beginning Balance | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseNet | 
        
           | 171 | Below Market Lease, Acquired | Concept (Monetary) | For Period | Credit | us-gaap:BelowMarketLeaseAcquired | 
        
           | 172 | Amortization of Below Market Lease | Concept (Monetary) | For Period | Credit | us-gaap:AmortizationOfBelowMarketLease | 
        
           | 173 | Below Market Lease, Period Increase (Decrease), Total | Concept (Monetary) | For Period |  | us-gaap:BelowMarketLeasePeriodIncreaseDecrease | 
        
           | 174 | Below Market Lease, Net, Ending Balance | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseNet | 
        
           | 175 | Below Market Lease, Net [Abstract] | Abstract |  |  | us-gaap:BelowMarketLeaseNetAbstract | 
        
           | 176 | Below Market Lease, Gross | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseGross | 
        
           | 177 | Below Market Lease, Accumulated Amortization | Concept (Monetary) | As Of | Debit | us-gaap:BelowMarketLeaseAccumulatedAmortization | 
        
           | 178 | Below Market Lease, Net, Total | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseNet | 
        
           | 179 | Below Market Lease, Amortization Income, Maturity Schedule [Abstract] | Abstract |  |  | us-gaap:BelowMarketLeaseAmortizationIncomeMaturityScheduleAbstract | 
        
           | 180 | Below Market Lease, Future Amortization Income [Table Text Block] | Concept (Text Block (HTML)) | For Period |  | us-gaap:BelowMarketLeaseFutureAmortizationIncomeTableTextBlock | 
        
           | 181 | Below Market Lease, Net, Amortization Income, Fiscal Year Maturity [Abstract] | Abstract |  |  | us-gaap:BelowMarketLeaseNetAmortizationIncomeFiscalYearMaturityAbstract | 
        
           | 182 | Below Market Lease, Amortization Income, Next Twelve Months | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeNextTwelveMonths | 
        
           | 183 | Below Market Lease, Amortization Income, Year Two | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeYearTwo | 
        
           | 184 | Below Market Lease, Amortization Income, Year Three | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeYearThree | 
        
           | 185 | Below Market Lease, Amortization Income, Year Four | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeYearFour | 
        
           | 186 | Below Market Lease, Amortization Income, Year Five | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeYearFive | 
        
           | 187 | Below Market Lease, Amortization Income, after Year Five | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeAfterYearFive | 
        
           | 188 | Below Market Lease, Net, Total | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseNet | 
        
           | 189 | Below Market Lease, Amortization Income, Remainder of Fiscal Year | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeRemainderOfFiscalYear | 
        
           | 190 | Below Market Lease, Net, Amortization Income, Rolling Maturity [Abstract] | Abstract |  |  | us-gaap:BelowMarketLeaseNetAmortizationIncomeRollingMaturityAbstract | 
        
           | 191 | Below Market Lease, Amortization Income, Next Rolling Twelve Months | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeNextRollingTwelveMonths | 
        
           | 192 | Below Market Lease, Amortization Income, Rolling Year Two | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeRollingYearTwo | 
        
           | 193 | Below Market Lease, Amortization Income, Rolling Year Three | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeRollingYearThree | 
        
           | 194 | Below Market Lease, Amortization Income, Rolling Year Four | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeRollingYearFour | 
        
           | 195 | Below Market Lease, Amortization Income, Rolling Year Five | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeRollingYearFive | 
        
           | 196 | Below Market Lease, Amortization Income, Rolling after Year Five | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseAmortizationIncomeRollingAfterYearFive | 
        
           | 197 | Below Market Lease, Net, Total | Concept (Monetary) | As Of | Credit | us-gaap:BelowMarketLeaseNet | 
        
           | 198 | Extinguishment of Liabilities [Abstract] | Abstract |  |  | us-gaap:ExtinguishmentOfLiabilitiesAbstract | 
        
           | 199 | Prepaid Stored-value Products, Breakage Methodology | Concept (Text/String) | For Period |  | us-gaap:PrepaidStoredValueProductsBreakageMethodology | 
        
           | 200 | Prepaid Stored-value Products, Breakage, Significant Judgment | Concept (Text/String) | For Period |  | us-gaap:PrepaidStoredValueProductsBreakageSignificantJudgment | 
        
           | 201 | Extensible Enumeration Domain Members | Network | * | * | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists | 
        
           | 202 | SRT Extensible Enumeration Domain Members | Network | * | * | http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists |