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Name	DerivativeMember
Namespace	http://fasb.org/us-gaap/2021-01-31
Prefix	us-gaap
Data type	dtr-types:domainItemType
Period type	duration
Substitution Group	xbrli:item
Balance	None
Nillable	True
Abstract	True

Text	Lang	Role	Container role
Derivative [Member]	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link
This element represents types of derivative financial instruments which are financial instruments or other contractual arrangements with all three of the following characteristics: (a) it has (1) one or more underlyings and (2) one or more notional amounts or payment provisions or both. Those terms determine the amount of the settlement or settlements, and, in some cases, whether or not a settlement is required; (b) it requires no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; and (c) its terms require or permit net settlement, it can readily be settled net by a means outside the contract, or it provides for delivery of an asset that puts the recipient in a position not substantially different from net settlement. Notwithstanding the above characteristics, loan commitments that relate to the origination of mortgage loans that will be held for sale are accounted for as derivative instruments by the issuer of the loan commitment (that is, the potential lender).	en-US	http://www.xbrl.org/2003/role/documentation	http://www.xbrl.org/2003/role/link

Name	Value	Role
Note	Element is not intended to be used with axis identified in tin-part:AlternateElement. Member element intended to be used with axis element identified in tin-part:AlternateElement is identified in tin-part:AlternateElement.	http://fasb.org/us-gaap/role/tin/usage
PublishDate	2018-01	http://fasb.org/us-gaap/role/tin/usage
AlternateElement	DefinedBenefitPlanByPlanAssetCategoriesAxis DefinedBenefitPlanDerivativeMember	http://fasb.org/us-gaap/role/tin/usage
elementCreationTaxonomyVersion	2008	http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote
Publisher	FASB	http://fasb.org/us-gaap/role/ref/legacyRef
Name	Accounting Standards Codification	http://fasb.org/us-gaap/role/ref/legacyRef
Topic	815	http://fasb.org/us-gaap/role/ref/legacyRef
SubTopic	10	http://fasb.org/us-gaap/role/ref/legacyRef
Section	15	http://fasb.org/us-gaap/role/ref/legacyRef
Paragraph	83	http://fasb.org/us-gaap/role/ref/legacyRef
URI	http://asc.fasb.org/extlink&oid=125514181&loc=d3e34841-113949	http://fasb.org/us-gaap/role/ref/legacyRef

Name	Relation Type	Role
Forward Contracts [Member] `us-gaap:ForwardContractsMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Warrant [Member] `us-gaap:WarrantMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Energy Related Derivative [Member] `us-gaap:EnergyRelatedDerivativeMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Options Held [Member] `us-gaap:OptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Commodity Option [Member] `us-gaap:CommodityOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Future [Member] `us-gaap:FutureMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Swap [Member] `us-gaap:SwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Currency Swap [Member] `us-gaap:CurrencySwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Swaption [Member] `us-gaap:SwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Commodity Option [Member] `us-gaap:CommodityOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Currency Swap [Member] `us-gaap:CurrencySwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Swaption [Member] `us-gaap:SwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Options Held [Member] `us-gaap:OptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Commodity Option [Member] `us-gaap:CommodityOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Call Option [Member] `us-gaap:CallOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Put Option [Member] `us-gaap:PutOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Future [Member] `us-gaap:FutureMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Swap [Member] `us-gaap:SwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Currency Swap [Member] `us-gaap:CurrencySwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Swaption [Member] `us-gaap:SwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Commodity Option [Member] `us-gaap:CommodityOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Call Option [Member] `us-gaap:CallOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Put Option [Member] `us-gaap:PutOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Currency Swap [Member] `us-gaap:CurrencySwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Swaption [Member] `us-gaap:SwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Options Held [Member] `us-gaap:OptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Commodity Option [Member] `us-gaap:CommodityOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Future [Member] `us-gaap:FutureMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Swap [Member] `us-gaap:SwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Currency Swap [Member] `us-gaap:CurrencySwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Swaption [Member] `us-gaap:SwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Commodity Option [Member] `us-gaap:CommodityOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Currency Swap [Member] `us-gaap:CurrencySwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Swaption [Member] `us-gaap:SwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Options Held [Member] `us-gaap:OptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Commodity Option [Member] `us-gaap:CommodityOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Future [Member] `us-gaap:FutureMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Swap [Member] `us-gaap:SwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Currency Swap [Member] `us-gaap:CurrencySwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Swaption [Member] `us-gaap:SwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Commodity Option [Member] `us-gaap:CommodityOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
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Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers
Forward Contracts [Member] `us-gaap:ForwardContractsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Warrant [Member] `us-gaap:WarrantMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Energy Related Derivative [Member] `us-gaap:EnergyRelatedDerivativeMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Options Held [Member] `us-gaap:OptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Commodity Option [Member] `us-gaap:CommodityOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Future [Member] `us-gaap:FutureMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Swap [Member] `us-gaap:SwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Currency Swap [Member] `us-gaap:CurrencySwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Swaption [Member] `us-gaap:SwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Commodity Option [Member] `us-gaap:CommodityOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Foreign Exchange Option [Member] `us-gaap:ForeignExchangeOptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Currency Swap [Member] `us-gaap:CurrencySwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Interest Rate Swap [Member] `us-gaap:InterestRateSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Credit Default Swap [Member] `us-gaap:CreditDefaultSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Swaption [Member] `us-gaap:SwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Forward Contracts [Member] `us-gaap:ForwardContractsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Options Held [Member] `us-gaap:OptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Swap [Member] `us-gaap:SwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Warrant [Member] `us-gaap:WarrantMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Future [Member] `us-gaap:FutureMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Energy Related Derivative [Member] `us-gaap:EnergyRelatedDerivativeMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Variance Swap [Member] `us-gaap:VarianceSwapMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Forward Contracts [Member] `us-gaap:ForwardContractsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Options Held [Member] `us-gaap:OptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Swap [Member] `us-gaap:SwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Warrant [Member] `us-gaap:WarrantMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Future [Member] `us-gaap:FutureMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Option on Securities [Member] `us-gaap:OptionOnSecuritiesMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Energy Related Derivative [Member] `us-gaap:EnergyRelatedDerivativeMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Exchange Traded Options [Member] `us-gaap:ExchangeTradedOptionsMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Foreign Exchange Forward [Member] `us-gaap:ForeignExchangeForwardMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Total Return Swap [Member] `us-gaap:TotalReturnSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Variance Swap [Member] `us-gaap:VarianceSwapMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Interest Rate Swaption [Member] `us-gaap:InterestRateSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Credit Default Swaption [Member] `us-gaap:CreditDefaultSwaptionMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Capital Support Agreement [Member] `us-gaap:CapitalSupportAgreementMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable

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Name	Relation Type	Role
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentHoldings
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/SummaryOfInvestmentHoldings
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldings
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/OtherThanSecuritiesInvestmentHoldingsInvestmentHoldingsOtherThanSecuritiesTable
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosures
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueOptionQuantitativeDisclosuresTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresScheduleOfFairValueOffBalanceSheetRisksTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	parent-child	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicing
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingAssumptionForFairValueAsOfBalanceSheetDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingAssumptionForFairValueOnSecuritizationDateOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingFeesEarnedInExchangeForServicingFinancialAssetsTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingFinancialInstrumentsOwnedAndPledgedAsCollateralTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingScheduleOfAssetsAndAssociatedLiabilitiesAccountedForAsSecuredBorrowingsTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingScheduleOfDerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingSecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingSecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingSensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingAssetsAtAmortizedValueTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingAssetsAtFairValueTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingLiabilitiesAtFairValueTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingServicingLiabilityAtAmortizedValueTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingTransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/TransfersAndServicingValuationAllowanceForImpairmentOfRecognizedServicingAssetsTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThrift
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftDistributionOfAssetsLiabilitiesAndStockholdersEquityTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftFinancingReceivableBeforeAllowanceForCreditLossMaturityTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftInterestRateAndInterestDifferentialAnalysisTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBankingAndThriftTransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable
Security Owned and Sold, Not yet Purchased Fair Value, Security Name [Domain] `us-gaap:SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers
Security Owned and Sold, Not yet Purchased Fair Value, Security Name [Domain] `us-gaap:SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany
Other than Securities Investment [Member] `us-gaap:OtherThanSecuritiesInvestmentMember`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompanyInvestmentHoldingsTable
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	parent-child	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA
Financial Instruments [Domain] `us-gaap:TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain`	domain-member	http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable