| Line |
Label |
Object Class (Data type) |
Period Type |
Balance |
Report Element Name |
| 1 |
Cost-method Investments [Table] |
Table |
|
|
us-gaap:ScheduleOfCostMethodInvestmentsTable |
| 2 |
Major Types of Debt and Equity Securities [Axis] |
Axis |
|
|
us-gaap:MajorTypesOfDebtAndEquitySecuritiesAxis |
| 3 |
Major Types of Debt and Equity Securities [Domain] |
Member |
|
|
us-gaap:MajorTypesOfDebtAndEquitySecuritiesDomain |
| 4 |
Equity Securities [Member] |
Member |
|
|
us-gaap:EquitySecuritiesMember |
| 5 |
Common Stock [Member] |
Member |
|
|
us-gaap:CommonStockMember |
| 6 |
Preferred Stock [Member] |
Member |
|
|
us-gaap:PreferredStockMember |
| 7 |
Nonredeemable Preferred Stock [Member] |
Member |
|
|
us-gaap:NonredeemablePreferredStockMember |
| 8 |
Redeemable Preferred Stock [Member] |
Member |
|
|
us-gaap:RedeemablePreferredStockMember |
| 9 |
Convertible Preferred Stock [Member] |
Member |
|
|
us-gaap:ConvertiblePreferredStockMember |
| 10 |
Contingent Convertible Preferred Stock [Member] |
Member |
|
|
us-gaap:ContingentConvertiblePreferredStockMember |
| 11 |
Debt Securities [Member] |
Member |
|
|
us-gaap:DebtSecuritiesMember |
| 12 |
US Treasury and Government [Member] |
Member |
|
|
us-gaap:USTreasuryAndGovernmentMember |
| 13 |
US Treasury Securities [Member] |
Member |
|
|
us-gaap:USTreasurySecuritiesMember |
| 14 |
US Government Agencies Debt Securities [Member] |
Member |
|
|
us-gaap:USGovernmentAgenciesDebtSecuritiesMember |
| 15 |
US Government-sponsored Enterprises Debt Securities [Member] |
Member |
|
|
us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember |
| 16 |
US States and Political Subdivisions Debt Securities [Member] |
Member |
|
|
us-gaap:USStatesAndPoliticalSubdivisionsMember |
| 17 |
Foreign Government Debt Securities [Member] |
Member |
|
|
us-gaap:ForeignGovernmentDebtSecuritiesMember |
| 18 |
Corporate Debt Securities [Member] |
Member |
|
|
us-gaap:CorporateDebtSecuritiesMember |
| 19 |
Domestic Corporate Debt Securities [Member] |
Member |
|
|
us-gaap:DomesticCorporateDebtSecuritiesMember |
| 20 |
Foreign Corporate Debt Securities [Member] |
Member |
|
|
us-gaap:ForeignCorporateDebtSecuritiesMember |
| 21 |
Commercial Paper, Not Included with Cash and Cash Equivalents [Member] |
Member |
|
|
us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember |
| 22 |
Convertible Debt Securities [Member] |
Member |
|
|
us-gaap:ConvertibleDebtSecuritiesMember |
| 23 |
Asset-backed Securities [Member] |
Member |
|
|
us-gaap:AssetBackedSecuritiesMember |
| 24 |
Collateralized Mortgage Backed Securities [Member] |
Member |
|
|
us-gaap:MortgageBackedSecuritiesMember |
| 25 |
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |
Member |
|
|
us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember |
| 26 |
Mortgage-backed Securities, Issued by Private Enterprises [Member] |
Member |
|
|
us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember |
| 27 |
Residential Mortgage Backed Securities [Member] |
Member |
|
|
us-gaap:ResidentialMortgageBackedSecuritiesMember |
| 28 |
Commercial Mortgage Backed Securities [Member] |
Member |
|
|
us-gaap:CommercialMortgageBackedSecuritiesMember |
| 29 |
Collateralized Debt Obligations [Member] |
Member |
|
|
us-gaap:CollateralizedDebtObligationsMember |
| 30 |
Asset-backed Securities, Securitized Loans and Receivables [Member] |
Member |
|
|
us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember |
| 31 |
Interest-Only-Strip [Member] |
Member |
|
|
us-gaap:InterestOnlyStripMember |
| 32 |
Principal-Only-Strip [Member] |
Member |
|
|
us-gaap:PrincipalOnlyStripMember |
| 33 |
Fixed Income Securities [Member] |
Member |
|
|
us-gaap:FixedIncomeSecuritiesMember |
| 34 |
Auction Rate Securities [Member] |
Member |
|
|
us-gaap:AuctionRateSecuritiesMember |
| 35 |
Variable Rate Demand Obligation [Member] |
Member |
|
|
us-gaap:VariableRateDemandObligationMember |
| 36 |
Other Debt Obligations [Member] |
Member |
|
|
us-gaap:OtherDebtSecuritiesMember |
| 37 |
Investment, Name [Axis] |
Axis |
|
|
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis |
| 38 |
Investment, Name [Domain] |
Member |
|
|
us-gaap:EquityMethodInvesteeNameDomain |
| 39 |
Schedule of Cost-method Investments [Line Items] |
LineItems |
|
|
us-gaap:ScheduleOfCostMethodInvestmentsLineItems |
| 40 |
Cost-method Investments, Realized Gain (Loss), Excluding Other than Temporary Impairments [Hierarchy] |
Abstract |
|
|
us-gaap:CostMethodInvestmentsRealizedGainLossAbstract |
| 41 |
Cost-method Investments, Realized Gains |
Concept (Monetary) |
For Period |
Credit |
us-gaap:CostMethodInvestmentsRealizedGains |
| 42 |
Cost-method Investments, Realized Losses, Excluding Other than Temporary Impairments |
Concept (Monetary) |
For Period |
Debit |
us-gaap:CostmethodInvestmentsRealizedLossesExcludingOtherThanTemporaryImpairments |
| 43 |
Cost-method Investments, Realized Gain (Loss), Excluding Other than Temporary Impairments, Total |
Concept (Monetary) |
For Period |
Credit |
us-gaap:CostmethodInvestmentsRealizedGainLossExcludingOtherThanTemporaryImpairments |
| 44 |
Cost-method Investments, Realized Gain (Loss) |
Concept (Monetary) |
For Period |
Credit |
us-gaap:CostMethodInvestmentsRealizedGainLoss |