$JEF
Jefferies Financial Group Inc. Stock $jef

$jef Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000009622321000030 Filed on July 09, 2021

Income Statement

Concept	2021 Q2	2020 Q2
Revenue	$2.166B	$1.378B
YoY Change	57.26%	-8.8%
Cost Of Revenue	$143.8M	$80.77M
YoY Change	78.09%	0.44%
Gross Profit	$2.022B	$1.297B
YoY Change	55.96%	-9.31%
Gross Profit Margin	93.36%	94.14%
Selling, General & Admin	$2.617B	$847.6M
YoY Change	208.79%	14.6%
% of Gross Profit	129.41%	65.36%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$39.44M	$40.37M
YoY Change	-2.29%	9.73%
% of Gross Profit	1.95%	3.11%
Operating Expenses	$2.695B	$887.9M
YoY Change	203.58%	14.35%
Operating Profit	-$673.0M	$408.9M
YoY Change	-264.61%	-37.43%
Interest Expense	$19.94M	$21.16M
YoY Change	-5.75%	-8.55%
% of Operating Profit		5.18%
Other Income/Expense, Net
YoY Change
Pretax Income	$474.1M	$75.51M
YoY Change	527.94%	-58.85%
Income Tax	$120.8M	$31.96M
% Of Pretax Income	25.48%	42.33%
Net Earnings	$353.3M	$44.92M
YoY Change	686.57%	-93.3%
Net Earnings / Revenue	16.31%	3.26%
Basic Earnings Per Share	$1.33	$0.16
Diluted Earnings Per Share	$1.30	$0.16
COMMON SHARES
Basic Shares Outstanding	263.3M shares	286.8M shares
Diluted Shares Outstanding	271.1M shares	286.8M shares

Balance Sheet

Concept	2021 Q2	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$8.443B	$6.884B
YoY Change	22.65%	27.62%
Cash & Equivalents	$8.443B	$6.884B
Short-Term Investments
Other Short-Term Assets	$901.4M
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$17.48B	$13.42B
YoY Change	30.2%	9.09%
LONG-TERM ASSETS
Property, Plant & Equipment	$903.0M	$918.0M
YoY Change	-1.63%
Goodwill	$1.752B	$1.736B
YoY Change	0.86%	2.07%
Intangibles	$161.0M	$173.7M
YoY Change	-7.33%	-4.36%
Long-Term Investments	$1.728B	$1.560B
YoY Change	10.79%	-35.44%
Other Assets		$669.0M
YoY Change		-34.09%
Total Long-Term Assets	$40.50B	$36.86B
YoY Change	9.88%	1.77%
TOTAL ASSETS
Total Short-Term Assets	$17.48B	$13.42B
Total Long-Term Assets	$40.50B	$36.86B
Total Assets	$57.98B	$50.28B
YoY Change	15.3%	3.63%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$9.542B	$8.525B
YoY Change	11.93%	21.28%
Accrued Expenses	$570.3M	$597.0M
YoY Change	-4.47%
Deferred Revenue
YoY Change
Short-Term Debt	$475.8M	$656.9M
YoY Change	-27.56%	28.69%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$31.92B	$20.36B
YoY Change	56.76%	8.71%
LONG-TERM LIABILITIES
Long-Term Debt	$13.08B	$10.89B
YoY Change	20.09%	11.3%
Other Long-Term Liabilities	$11.97B	$9.646B
YoY Change	24.11%	-4.62%
Total Long-Term Liabilities	$13.08B	$20.54B
YoY Change	-36.31%	3.21%
TOTAL LIABILITIES
Total Short-Term Liabilities	$31.92B	$20.36B
Total Long-Term Liabilities	$13.08B	$20.54B
Total Liabilities	$47.72B	$40.77B
YoY Change	17.04%	5.9%
SHAREHOLDERS EQUITY
Retained Earnings	$7.340B	$6.002B
YoY Change	22.29%	-3.92%
Common Stock	$3.097B	$3.459B
YoY Change	-10.48%	-10.15%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares	69.43M shares	49.35M shares
Shareholders Equity	$10.07B	$9.327B
YoY Change
Total Liabilities & Shareholders Equity	$57.98B	$50.28B
YoY Change	15.3%	3.63%

Cashflow Statement

Concept	2021 Q2	2020 Q2
OPERATING ACTIVITIES
Net Income	$353.3M	$44.92M
YoY Change	686.57%	-93.3%
Depreciation, Depletion And Amortization	$39.44M	$40.37M
YoY Change	-2.29%	9.73%
Cash From Operating Activities	$514.3M	$1.079B
YoY Change	-52.34%	-264.4%
INVESTING ACTIVITIES
Capital Expenditures	-$32.57M	-$59.70M
YoY Change	-45.45%	5.85%
Acquisitions
YoY Change
Other Investing Activities	-$63.95M	-$54.40M
YoY Change	17.55%	-129.5%
Cash From Investing Activities	-$96.51M	-$114.1M
YoY Change	-15.41%	-189.21%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-293.7M	-653.2M
YoY Change	-55.03%	-416.93%
NET CHANGE
Cash From Operating Activities	514.3M	1.079B
Cash From Investing Activities	-96.51M	-114.1M
Cash From Financing Activities	-293.7M	-653.2M
Net Change In Cash	124.1M	311.8M
YoY Change	-60.2%	-196.71%
FREE CASH FLOW
Cash From Operating Activities	$514.3M	$1.079B
Capital Expenditures	-$32.57M	-$59.70M
Free Cash Flow	$546.9M	$1.139B
YoY Change	-51.98%	-289.8%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000096223
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--11-30
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	jef	Repos Obligation Settlement Period ReposObligationSettlementPeriod	P3D
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-05-31
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-5721
	dei	Entity Registrant Name EntityRegistrantName	JEFFERIES FINANCIAL GROUP INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NY
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-2615557
	dei	Entity Address Address Line1 EntityAddressAddressLine1	520 Madison Avenue
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10022
	dei	City Area Code CityAreaCode	212
	dei	Local Phone Number LocalPhoneNumber	460-1900
	dei	Security12b Title Security12bTitle	Common Shares, par value $1 per share
	dei	Trading Symbol TradingSymbol	JEF
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2021Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-234000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-198000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-1003000	USD
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-480000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1626000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1404000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3252000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2826000	USD
CY2021Q2	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	352596000	USD
CY2020Q2	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	44919000	USD
	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	935031000	USD
	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	157929000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-27000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	196000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-87000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	433000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-8000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	67000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-27000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	148000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-27000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	196000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-87000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	433000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	1348000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-7838000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	4601000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-10985000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	3393000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-25710000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	14476000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-34943000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	59106000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	1348000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-7838000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	4601000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-10985000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3393000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-25710000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	14476000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-34943000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	-6327000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	51167000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodTax	-28509000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	-18948000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	150040000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	-88162000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Unrealized Gain Loss Arising During Period After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionUnrealizedGainLossArisingDuringPeriodAfterTax	173288000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionTax	849000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionTax	444000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionTax	920000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionTax	530000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	2637000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	1302000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	2859000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	1554000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Reclassification Adjustment Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterReclassificationAdjustmentTax	-7176000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Reclassification Adjustment Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterReclassificationAdjustmentTax	50723000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Reclassification Adjustment Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterReclassificationAdjustmentTax	-29429000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Reclassification Adjustment Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterReclassificationAdjustmentTax	58576000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Tax And Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterTaxAndReclassificationAdjustment	-21585000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Tax And Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterTaxAndReclassificationAdjustment	148738000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Tax And Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterTaxAndReclassificationAdjustment	-91021000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option After Tax And Reclassification Adjustment OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterTaxAndReclassificationAdjustment	171734000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	264000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	214000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	525000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	438000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	765000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	648000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1551000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	1287000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-264000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-214000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-525000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-438000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-765000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-648000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1551000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1287000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17454000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	123872000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-75081000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	138511000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	335865000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	167417000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	860787000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	294077000	USD
CY2021Q2	jef	Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	-669000	USD
CY2020Q2	jef	Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	-2580000	USD
	jef	Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	-1412000	USD
	jef	Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	-4709000	USD
CY2021Q2	jef	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterests	-234000	USD
CY2020Q2	jef	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterests	-198000	USD
	jef	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterests	-1003000	USD
	jef	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interests ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterests	-480000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1626000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	1404000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3252000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	2826000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	335142000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	168791000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	859950000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	296440000	USD
	us-gaap	Profit Loss ProfitLoss	935868000	USD
	us-gaap	Profit Loss ProfitLoss	155566000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-40537000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	25176000	USD
	jef	Depreciationandamortizationofrealestatepropertyequipmentandleaseholdimprovements Depreciationandamortizationofrealestatepropertyequipmentandleaseholdimprovements	72670000	USD
	jef	Depreciationandamortizationofrealestatepropertyequipmentandleaseholdimprovements Depreciationandamortizationofrealestatepropertyequipmentandleaseholdimprovements	73450000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	10970000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	5719000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	64257000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	20684000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	48939000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	22979000	USD
	jef	Income Losses Relatedto Associated Companies Including Income Losses Relatedto Subsidiary Associated Companies Primarily Classifiedas Revenues IncomeLossesRelatedtoAssociatedCompaniesIncludingIncomeLossesRelatedtoSubsidiaryAssociatedCompaniesPrimarilyClassifiedasRevenues	118950000	USD
	jef	Income Losses Relatedto Associated Companies Including Income Losses Relatedto Subsidiary Associated Companies Primarily Classifiedas Revenues IncomeLossesRelatedtoAssociatedCompaniesIncludingIncomeLossesRelatedtoSubsidiaryAssociatedCompaniesPrimarilyClassifiedasRevenues	-100712000	USD
	jef	Dividends Or Distributions From Associated Companies DividendsOrDistributionsFromAssociatedCompanies	39449000	USD
	jef	Dividends Or Distributions From Associated Companies DividendsOrDistributionsFromAssociatedCompanies	51860000	USD
	jef	Netgainslossesrelatedtopropertyandequipmentandotherassets Netgainslossesrelatedtopropertyandequipmentandotherassets	-4609000	USD
	jef	Netgainslossesrelatedtopropertyandequipmentandotherassets Netgainslossesrelatedtopropertyandequipmentandotherassets	-55867000	USD
	jef	Increase Decreasein Securities Depositedwith Clearingand Depository Organizations IncreaseDecreaseinSecuritiesDepositedwithClearingandDepositoryOrganizations	23788000	USD
	jef	Increase Decreasein Securities Depositedwith Clearingand Depository Organizations IncreaseDecreaseinSecuritiesDepositedwithClearingandDepositoryOrganizations	61212000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	1795263000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	1763950000	USD
	us-gaap	Increase Decrease In Securities Borrowed IncreaseDecreaseInSecuritiesBorrowed	-219788000	USD
	us-gaap	Increase Decrease In Securities Borrowed IncreaseDecreaseInSecuritiesBorrowed	-1142449000	USD
	jef	Increase Decrease In Securities Purchased Under Agreements To Resell IncreaseDecreaseInSecuritiesPurchasedUnderAgreementsToResell	1811829000	USD
	jef	Increase Decrease In Securities Purchased Under Agreements To Resell IncreaseDecreaseInSecuritiesPurchasedUnderAgreementsToResell	14988000	USD
	us-gaap	Increase Decrease In Brokerage Receivables IncreaseDecreaseInBrokerageReceivables	601333000	USD
	us-gaap	Increase Decrease In Brokerage Receivables IncreaseDecreaseInBrokerageReceivables	1224653000	USD
	jef	Increase Decrease Receivables From Customers Of Securities Operations IncreaseDecreaseReceivablesFromCustomersOfSecuritiesOperations	834886000	USD
	jef	Increase Decrease Receivables From Customers Of Securities Operations IncreaseDecreaseReceivablesFromCustomersOfSecuritiesOperations	-409989000	USD
	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	91089000	USD
	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	8007000	USD
	jef	Increase Decrease In Other Assets IncreaseDecreaseInOtherAssets	88072000	USD
	jef	Increase Decrease In Other Assets IncreaseDecreaseInOtherAssets	210659000	USD
	us-gaap	Increase Decrease In Trading Liabilities IncreaseDecreaseInTradingLiabilities	1937962000	USD
	us-gaap	Increase Decrease In Trading Liabilities IncreaseDecreaseInTradingLiabilities	-809728000	USD
	us-gaap	Increase Decrease In Securities Loaned Transactions IncreaseDecreaseInSecuritiesLoanedTransactions	461500000	USD
	us-gaap	Increase Decrease In Securities Loaned Transactions IncreaseDecreaseInSecuritiesLoanedTransactions	438246000	USD
	us-gaap	Increase Decrease In Payables Under Repurchase Agreements IncreaseDecreaseInPayablesUnderRepurchaseAgreements	-1244181000	USD
	us-gaap	Increase Decrease In Payables Under Repurchase Agreements IncreaseDecreaseInPayablesUnderRepurchaseAgreements	1159948000	USD
	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	2020160000	USD
	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	405873000	USD
	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	-61147000	USD
	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	-153116000	USD
	jef	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-27349000	USD
	jef	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-30760000	USD
	jef	Increase Decreasein Trade Payables Expense Accrualsand Other Liabilities IncreaseDecreaseinTradePayablesExpenseAccrualsandOtherLiabilities	17124000	USD
	jef	Increase Decreasein Trade Payables Expense Accrualsand Other Liabilities IncreaseDecreaseinTradePayablesExpenseAccrualsandOtherLiabilities	199297000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	76458000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-170218000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-981586000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	160960000	USD
	jef	Payments To Acquire Property Plant And Equipment And Other Assets PaymentsToAcquirePropertyPlantAndEquipmentAndOtherAssets	56766000	USD
	jef	Payments To Acquire Property Plant And Equipment And Other Assets PaymentsToAcquirePropertyPlantAndEquipmentAndOtherAssets	120708000	USD
	us-gaap	Payments To Acquire Receivables PaymentsToAcquireReceivables	284616000	USD
	us-gaap	Payments To Acquire Receivables PaymentsToAcquireReceivables	414031000	USD
	us-gaap	Proceeds From Sale And Collection Of Receivables ProceedsFromSaleAndCollectionOfReceivables	172609000	USD
	us-gaap	Proceeds From Sale And Collection Of Receivables ProceedsFromSaleAndCollectionOfReceivables	384528000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	1988158000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	1382827000	USD
	jef	Capitaldistributionsandloanrepaymentsfromassociatedcompanies Capitaldistributionsandloanrepaymentsfromassociatedcompanies	2025728000	USD
	jef	Capitaldistributionsandloanrepaymentsfromassociatedcompanies Capitaldistributionsandloanrepaymentsfromassociatedcompanies	1344570000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2391000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-25050000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-128812000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-163418000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	1276311000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	1850147000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1153478000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1930381000	USD
	jef	Netchangeinothersecuredfinancings Netchangeinothersecuredfinancings	842190000	USD
	jef	Netchangeinothersecuredfinancings Netchangeinothersecuredfinancings	-325234000	USD
	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	49187000	USD
	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-3126000	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	13266000	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	216000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	3434000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	17504000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	130097000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	495253000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	99501000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	83436000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	1207000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	575000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	775987000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-969420000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4755000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-13547000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-329656000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-985425000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9664972000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8480435000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9335316000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7495010000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8443206000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6883881000	USD
CY2021Q2	jef	Cash And Securities Segregated And On Deposit For Regulatory Purposes Or Deposited With Clearing And Depository Organizations CashAndSecuritiesSegregatedAndOnDepositForRegulatoryPurposesOrDepositedWithClearingAndDepositoryOrganizations	843356000	USD
CY2020Q2	jef	Cash And Securities Segregated And On Deposit For Regulatory Purposes Or Deposited With Clearing And Depository Organizations CashAndSecuritiesSegregatedAndOnDepositForRegulatoryPurposesOrDepositedWithClearingAndDepositoryOrganizations	572725000	USD
CY2021Q2	jef	Restricted Cash Other Assets RestrictedCashOtherAssets	48754000	USD
CY2020Q2	jef	Restricted Cash Other Assets RestrictedCashOtherAssets	38404000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9335316000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7495010000	USD
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2021Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9778358000	USD
CY2021Q2	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	352596000	USD
CY2021Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-669000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17454000	USD
CY2021Q2	jef	Noncontrolling Interest Increase From Contributions From Noncontrolling Interests NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterests	3354000	USD
CY2021Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	11793000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	43579000	USD
CY2021Q2	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-3715000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.20
CY2021Q2	us-gaap	Dividends Common Stock DividendsCommonStock	53943000	USD
CY2021Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	-5051000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10095364000	USD
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2020Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9385905000	USD
CY2020Q2	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	44919000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2580000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	123872000	USD
CY2020Q2	jef	Noncontrolling Interest Increase From Contributions From Noncontrolling Interests NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterests	404000	USD
CY2020Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	216000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10737000	USD
CY2020Q2	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	2311000	USD
CY2020Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	166537000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	43454000	USD
CY2020Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	-5752000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9361113000	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9438525000	USD
	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	935031000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1412000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-75081000	USD
	jef	Noncontrolling Interest Increase From Contributions From Noncontrolling Interests NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterests	3434000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	13266000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	64257000	USD
	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-10773000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	130097000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.40
	us-gaap	Dividends Common Stock DividendsCommonStock	106839000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	-11500000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10095364000	USD
CY2020Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9601684000	USD
	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	157929000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-4709000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	138511000	USD
	jef	Noncontrolling Interest Increase From Contributions From Noncontrolling Interests NoncontrollingInterestIncreaseFromContributionsFromNoncontrollingInterests	17504000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	216000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20684000	USD
	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	3875000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	494038000	USD
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
	us-gaap	Dividends Common Stock DividendsCommonStock	89240000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	-9129000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9361113000	USD
	us-gaap	Nature Of Operations NatureOfOperations	Nature of Operations<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Jefferies Financial Group Inc. ("Jefferies," "we," "our" or the "Company") is engaged in investment banking and capital markets, asset management and direct investing. Jefferies Group LLC ("Jefferies Group"), our largest subsidiary, was established in 1962 and is now the largest independent U.S.-headquartered global full-service integrated investment banking and securities firm. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Jefferies Group operates in two business segments: Investment Banking and Capital Markets, and Asset Management. Investment Banking and Capital Markets includes investment banking, capital markets and other related services. Investment banking provides underwriting and financial advisory services to clients across most industry sectors in the Americas, Europe and Asia. Capital markets businesses operate across the spectrum of equities and fixed income products.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our Asset Management segment comprises all asset management operations, including those within Jefferies Group. Within Asset Management, we manage, invest in and provide services to a diverse group of alternative asset management platforms across a spectrum of investment strategies and asset classes. Asset Management offers institutional clients an innovative range of investment strategies through its affiliated managers.</span></div>Merchant Banking is where we own a portfolio of businesses and investments, including Linkem (fixed wireless broadband services in Italy); Vitesse Energy, LLC ("Vitesse Energy Finance") (oil and gas production and development); real estate, primarily HomeFed LLC ("HomeFed"); Idaho Timber (manufacturing); and FXCM Group, LLC ("FXCM") (provider of online foreign exchange trading services).
CY2021Q2	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	4730800000	USD
CY2020Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	4161800000	USD
CY2021Q2	us-gaap	Receivables From Customers ReceivablesFromCustomers	2121800000	USD
CY2020Q4	us-gaap	Receivables From Customers ReceivablesFromCustomers	1286900000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	76392000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	34038000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	53926000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	34018000	USD
CY2021Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	45672000	USD
CY2020Q2	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	12109000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	48939000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	22979000	USD
CY2021Q2	jef	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	42810000	USD
CY2020Q2	jef	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	7341000	USD
	jef	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	50130000	USD
	jef	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	18191000	USD
CY2021Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	79254000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	38806000	USD
CY2021Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	79254000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	38806000	USD
CY2021Q2	jef	Other Investments Carrying Value OtherInvestmentsCarryingValue	61800000	USD
CY2020Q4	jef	Other Investments Carrying Value OtherInvestmentsCarryingValue	90200000	USD
CY2020Q2	us-gaap	Impairment Of Investments ImpairmentOfInvestments	600000	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	20600000	USD
CY2021Q2	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2021Q2	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2200000	USD
CY2020Q2	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2400000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4100000	USD
	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4800000	USD
CY2021Q2	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	5351600000	USD
CY2020Q4	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	3325800000	USD
CY2021Q2	srt	Payables To Customers PayablesToCustomers	4190400000	USD
CY2020Q4	srt	Payables To Customers PayablesToCustomers	4249700000	USD
	us-gaap	Interest Paid Net InterestPaidNet	444939000	USD
	us-gaap	Interest Paid Net InterestPaidNet	584009000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	337720000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-5330000	USD
CY2021Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	2546358000	USD
CY2021Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	2546358000	USD
CY2021Q2	jef	Financial Instruments Owned At Fair Value Excluding Investments At Fair Value Based On Nav FinancialInstrumentsOwnedAtFairValueExcludingInvestmentsAtFairValueBasedOnNAV	19028975000	USD
CY2021Q2	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	37287000	USD
CY2021Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	3016439000	USD
CY2021Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	3016439000	USD
CY2021Q2	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	11971970000	USD
CY2021Q2	jef	Other Secured Financings Fair Value OtherSecuredFinancingsFairValue	2493000	USD
CY2021Q2	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1819975000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	1556136000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	1556136000	USD
CY2020Q4	jef	Financial Instruments Owned At Fair Value Excluding Investments At Fair Value Based On Nav FinancialInstrumentsOwnedAtFairValueExcludingInvestmentsAtFairValueBasedOnNAV	17159193000	USD
CY2020Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	48788000	USD
CY2020Q4	us-gaap	Securities Received As Collateral SecuritiesReceivedAsCollateral	7517000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	1798659000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	1798659000	USD
CY2020Q4	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	10017600000	USD
CY2020Q4	us-gaap	Shortterm Debt Fair Value ShorttermDebtFairValue	5067000	USD
CY2020Q4	jef	Other Secured Financings Fair Value OtherSecuredFinancingsFairValue	1543000	USD
CY2020Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1712245000	USD
CY2020Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	7517000	USD
CY2021Q2	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	34033000	USD
CY2020Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	17408000	USD
CY2021Q2	jef	Fair Value Liabilities Measured On Recurring Basis Still Held Change In Unrealized Gain Loss Included In Other Comprehensive Income FairValueLiabilitiesMeasuredOnRecurringBasisStillHeldChangeInUnrealizedGainLossIncludedInOtherComprehensiveIncome	-19000000.0	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	57800000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	21800000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	78100000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	154700000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	45300000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-7000000.0	USD
CY2020Q2	jef	Fair Value Liabilities Measured On Recurring Basis Still Held Change In Unrealized Gain Loss Included In Other Comprehensive Income FairValueLiabilitiesMeasuredOnRecurringBasisStillHeldChangeInUnrealizedGainLossIncludedInOtherComprehensiveIncome	91800000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	127500000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	33700000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	23700000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	98600000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-92200000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	124300000	USD
	jef	Fair Value Liabilities Measured On Recurring Basis Still Held Change In Unrealized Gain Loss Included In Other Comprehensive Income FairValueLiabilitiesMeasuredOnRecurringBasisStillHeldChangeInUnrealizedGainLossIncludedInOtherComprehensiveIncome	-61600000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	99700000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	70300000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	162900000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	17300000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	148400000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-60700000	USD
	jef	Fair Value Liabilities Measured On Recurring Basis Still Held Change In Unrealized Gain Loss Included In Other Comprehensive Income FairValueLiabilitiesMeasuredOnRecurringBasisStillHeldChangeInUnrealizedGainLossIncludedInOtherComprehensiveIncome	106100000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	148500000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	14600000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	37000000.0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	98500000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-127500000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	144700000	USD
CY2021Q2	jef	Excluded Securities From Unobservable Quantitative Information Assets ExcludedSecuritiesFromUnobservableQuantitativeInformationAssets	39700000	USD
CY2020Q4	jef	Excluded Securities From Unobservable Quantitative Information Assets ExcludedSecuritiesFromUnobservableQuantitativeInformationAssets	192000000.0	USD
CY2020Q4	jef	Excluded Securitiesfrom Unobservable Quantitative Information Liabilities ExcludedSecuritiesfromUnobservableQuantitativeInformationLiabilities	800000	USD
CY2021Q2	us-gaap	Fair Value Option Credit Risk Gains Losses On Assets FairValueOptionCreditRiskGainsLossesOnAssets	15520000	USD
CY2020Q2	us-gaap	Fair Value Option Credit Risk Gains Losses On Assets FairValueOptionCreditRiskGainsLossesOnAssets	-13926000	USD
	us-gaap	Fair Value Option Credit Risk Gains Losses On Assets FairValueOptionCreditRiskGainsLossesOnAssets	23259000	USD
	us-gaap	Fair Value Option Credit Risk Gains Losses On Assets FairValueOptionCreditRiskGainsLossesOnAssets	-10830000	USD
CY2021Q2	jef	Fair Value Option Credit Risk Gains Losses On Loans FairValueOptionCreditRiskGainsLossesOnLoans	-363000	USD
CY2020Q2	jef	Fair Value Option Credit Risk Gains Losses On Loans FairValueOptionCreditRiskGainsLossesOnLoans	127000	USD
	jef	Fair Value Option Credit Risk Gains Losses On Loans FairValueOptionCreditRiskGainsLossesOnLoans	-363000	USD
	jef	Fair Value Option Credit Risk Gains Losses On Loans FairValueOptionCreditRiskGainsLossesOnLoans	127000	USD
CY2021Q2	jef	Fair Value Option Credit Risk Gains Losseson Loan Commitments FairValueOptionCreditRiskGainsLossesonLoanCommitments	0	USD
CY2020Q2	jef	Fair Value Option Credit Risk Gains Losseson Loan Commitments FairValueOptionCreditRiskGainsLossesonLoanCommitments	1750000	USD
	jef	Fair Value Option Credit Risk Gains Losseson Loan Commitments FairValueOptionCreditRiskGainsLossesonLoanCommitments	0	USD
	jef	Fair Value Option Credit Risk Gains Losseson Loan Commitments FairValueOptionCreditRiskGainsLossesonLoanCommitments	1089000	USD
CY2021Q2	us-gaap	Fair Value Option Aggregate Differences Loans And Long Term Receivables FairValueOptionAggregateDifferencesLoansAndLongTermReceivables	5809031000	USD
CY2020Q4	us-gaap	Fair Value Option Aggregate Differences Loans And Long Term Receivables FairValueOptionAggregateDifferencesLoansAndLongTermReceivables	1662647000	USD
CY2021Q2	jef	Fair Value Option Loans Held As Assets Aggregate Amount In Nonaccrual Status And Or90 Days Or Greater Past Due Aggregated Difference FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAndOr90DaysOrGreaterPastDueAggregatedDifference	135054000	USD
CY2020Q4	jef	Fair Value Option Loans Held As Assets Aggregate Amount In Nonaccrual Status And Or90 Days Or Greater Past Due Aggregated Difference FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAndOr90DaysOrGreaterPastDueAggregatedDifference	287889000	USD
CY2021Q2	jef	Fair Value Option Aggregate Differences Longterm Debt And Shortterm Borrowing FairValueOptionAggregateDifferencesLongtermDebtAndShorttermBorrowing	-75025000	USD
CY2020Q4	jef	Fair Value Option Aggregate Differences Longterm Debt And Shortterm Borrowing FairValueOptionAggregateDifferencesLongtermDebtAndShorttermBorrowing	-42819000	USD
CY2021Q2	jef	Fair Value Option Aggregate Differences Other Secured Financings FairValueOptionAggregateDifferencesOtherSecuredFinancings	2782000	USD
CY2020Q4	jef	Fair Value Option Aggregate Differences Other Secured Financings FairValueOptionAggregateDifferencesOtherSecuredFinancings	2782000	USD
CY2021Q2	us-gaap	Fair Value Option Loans Held As Assets90 Days Or More Past Due Aggregate Difference FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueAggregateDifference	36500000	USD
CY2020Q4	us-gaap	Fair Value Option Loans Held As Assets90 Days Or More Past Due Aggregate Difference FairValueOptionLoansHeldAsAssets90DaysOrMorePastDueAggregateDifference	30000000.0	USD
CY2021Q2	jef	Fair Value Option Loans Held As Assets Aggregate Amount In Nonaccrual Status And Or90 Days Or Greater Past Due FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAndOr90DaysOrGreaterPastDue	67400000	USD
CY2020Q4	jef	Fair Value Option Loans Held As Assets Aggregate Amount In Nonaccrual Status And Or90 Days Or Greater Past Due FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusAndOr90DaysOrGreaterPastDue	69700000	USD
CY2021Q2	us-gaap	Fair Value Option Loans Held As Assets90 Days Or More Past Due FairValueOptionLoansHeldAsAssets90DaysOrMorePastDue	26200000	USD
CY2020Q4	us-gaap	Fair Value Option Loans Held As Assets90 Days Or More Past Due FairValueOptionLoansHeldAsAssets90DaysOrMorePastDue	3800000	USD
CY2021Q2	us-gaap	Derivative Assets DerivativeAssets	400621000	USD
CY2021Q2	jef	Consolidated Otc Derivative Assets Net Of Crossmaturity Netting ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting	553349000	USD
CY2021Q2	jef	Derivative Assets Cross Product Counterparty Netting DerivativeAssetsCrossProductCounterpartyNetting	12172000	USD
CY2021Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	882930000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	481007000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	641143000	USD
CY2021Q2	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	3544000	USD
CY2020Q2	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	-302000	USD
	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	6564000	USD
	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	-704000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	32708000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	62231000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-69812000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	214132000	USD
CY2021Q2	jef	Otc Derivative Assets Having Maturity Period Of Zero To Twelve Months OtcDerivativeAssetsHavingMaturityPeriodOfZeroToTwelveMonths	303868000	USD
CY2021Q2	jef	Otc Derivative Assets Having Maturity Period Of One To Five Years OtcDerivativeAssetsHavingMaturityPeriodOfOneToFiveYears	145527000	USD
CY2021Q2	jef	Otc Derivative Assets Having Maturity Period Of Greater Than Five Years OtcDerivativeAssetsHavingMaturityPeriodOfGreaterThanFiveYears	166432000	USD
CY2021Q2	jef	Otc Derivative Assets Cross Maturity Netting OtcDerivativeAssetsCrossMaturityNetting	62478000	USD
CY2021Q2	jef	Otc Derivative Assets Included In Financial Instruments Owned OtcDerivativeAssetsIncludedInFinancialInstrumentsOwned	541177000	USD
CY2021Q2	jef	Exchange Traded Derivative Assets And Other Credit Agreements ExchangeTradedDerivativeAssetsAndOtherCreditAgreements	18300000	USD
CY2021Q2	jef	Cash Collateral Received CashCollateralReceived	158800000	USD
CY2021Q2	jef	Otc Derivative Liabilities Having Maturity Period Of Zero To Twelve Months OtcDerivativeLiabilitiesHavingMaturityPeriodOfZeroToTwelveMonths	326520000	USD
CY2021Q2	jef	Otc Derivative Liabilities Having Maturity Period Of One To Five Years OtcDerivativeLiabilitiesHavingMaturityPeriodOfOneToFiveYears	893601000	USD
CY2021Q2	jef	Otc Derivative Liabilities Having Maturity Period Of Greater Than Five Years OtcDerivativeLiabilitiesHavingMaturityPeriodOfGreaterThanFiveYears	302190000	USD
CY2021Q2	jef	Otc Derivative Liabilities Cross Maturity Netting OtcDerivativeLiabilitiesCrossMaturityNetting	62478000	USD
CY2021Q2	jef	Consolidated Otc Derivative Liabilities Net Of Crossmaturity Netting ConsolidatedOtcDerivativeLiabilitiesNetOfCrossmaturityNetting	1459833000	USD
CY2021Q2	jef	Derivative Liabilities Cross Product Counterparty Netting DerivativeLiabilitiesCrossProductCounterpartyNetting	12172000	USD
CY2021Q2	jef	Otc Derivative Liabilities Included In Financial Instruments Sold Not Yet Purchased OtcDerivativeLiabilitiesIncludedInFinancialInstrumentsSoldNotYetPurchased	1447661000	USD
CY2021Q2	jef	Exchange Traded Derivative Liabilities And Other Credit Agreements ExchangeTradedDerivativeLiabilitiesAndOtherCreditAgreements	64200000	USD
CY2021Q2	jef	Cash Collateral Pledged CashCollateralPledged	628900000	USD
CY2021Q2	jef	Fair Value Of Otc Derivatives Assets Counterparty Credit Quality FairValueOfOtcDerivativesAssetsCounterpartyCreditQuality	127260000	USD
CY2021Q2	jef	Fair Value Of Otc Derivatives Assets Counterparty Credit Quality Bbb Minus To Bbb Plus FairValueOfOtcDerivativesAssetsCounterpartyCreditQualityBbbMinusToBbbPlus	33398000	USD
CY2021Q2	jef	Fair Value Of Otc Derivatives Assets Counterparty Credit Quality Bb Plus Or Lower FairValueOfOtcDerivativesAssetsCounterpartyCreditQualityBbPlusOrLower	192047000	USD
CY2021Q2	jef	Fair Value Of Over Counter Derivatives Assets Counterparty Credit Quality Unrated FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityUnrated	188472000	USD
CY2021Q2	jef	Otc Derivative Assets Included In Financial Instruments Owned OtcDerivativeAssetsIncludedInFinancialInstrumentsOwned	541177000	USD
CY2021Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	508200000	USD
CY2020Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	284600000	USD
CY2021Q2	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	209900000	USD
CY2020Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	129800000	USD
CY2021Q2	jef	Collateral Received Aggregate Fair Value CollateralReceivedAggregateFairValue	155700000	USD
CY2020Q4	jef	Collateral Received Aggregate Fair Value CollateralReceivedAggregateFairValue	141400000	USD
CY2021Q2	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	454000000.0	USD
CY2020Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	296200000	USD
CY2021Q2	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	2277423000	USD
CY2021Q2	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	17282939000	USD
CY2021Q2	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	0	USD
CY2021Q2	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	19560362000	USD
CY2020Q4	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	1810748000	USD
CY2020Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	15159273000	USD
CY2020Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	7517000	USD
CY2020Q4	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	16977538000	USD
CY2021Q2	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	2277423000	USD
CY2021Q2	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	17282939000	USD
CY2021Q2	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	19560362000	USD
CY2020Q4	us-gaap	Securities Loaned Including Not Subject To Master Netting Arrangement And Assets Other Than Securities Transferred SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred	1810748000	USD
CY2020Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	15159273000	USD
CY2020Q4	us-gaap	Obligation To Return Securities Received As Collateral ObligationToReturnSecuritiesReceivedAsCollateral	7517000	USD
CY2020Q4	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	16977538000	USD
CY2021Q2	us-gaap	Fair Value Of Securities Received As Collateral That Can Be Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatCanBeResoldOrRepledged	33000000000.0	USD
CY2020Q4	us-gaap	Fair Value Of Securities Received As Collateral That Can Be Resold Or Repledged FairValueOfSecuritiesReceivedAsCollateralThatCanBeResoldOrRepledged	25900000000	USD
CY2021Q2	us-gaap	Securities Borrowed Gross SecuritiesBorrowedGross	6720683000	USD
CY2021Q2	us-gaap	Securities Borrowed Liability SecuritiesBorrowedLiability	0	USD
CY2021Q2	us-gaap	Securities Borrowed SecuritiesBorrowed	6720683000	USD
CY2021Q2	us-gaap	Securities Borrowed Collateral Obligation To Return Cash SecuritiesBorrowedCollateralObligationToReturnCash	493650000	USD
CY2021Q2	us-gaap	Securities Borrowed Collateral Obligation To Return Securities SecuritiesBorrowedCollateralObligationToReturnSecurities	2083503000	USD
CY2021Q2	us-gaap	Securities Borrowed Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	4143530000	USD
CY2021Q2	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	17120842000	USD
CY2021Q2	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	10203617000	USD
CY2021Q2	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	6917225000	USD
CY2021Q2	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	618350000	USD
CY2021Q2	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	6259927000	USD
CY2021Q2	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	38948000	USD
CY2021Q2	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	2277423000	USD
CY2021Q2	us-gaap	Securities Loaned Asset SecuritiesLoanedAsset	0	USD
CY2021Q2	us-gaap	Securities Loaned SecuritiesLoaned	2277423000	USD
CY2021Q2	us-gaap	Securities Loaned Collateral Right To Reclaim Cash SecuritiesLoanedCollateralRightToReclaimCash	493650000	USD
CY2021Q2	us-gaap	Securities Loaned Collateral Right To Reclaim Securities SecuritiesLoanedCollateralRightToReclaimSecurities	1718328000	USD
CY2021Q2	us-gaap	Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	65445000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	17282939000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	10203617000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	7079322000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	618350000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	5933921000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	527051000	USD
CY2020Q4	us-gaap	Securities Borrowed Gross SecuritiesBorrowedGross	6934762000	USD
CY2020Q4	us-gaap	Securities Borrowed Liability SecuritiesBorrowedLiability	0	USD
CY2020Q4	us-gaap	Securities Borrowed SecuritiesBorrowed	6934762000	USD
CY2020Q4	us-gaap	Securities Borrowed Collateral Obligation To Return Cash SecuritiesBorrowedCollateralObligationToReturnCash	395342000	USD
CY2020Q4	us-gaap	Securities Borrowed Collateral Obligation To Return Securities SecuritiesBorrowedCollateralObligationToReturnSecurities	1706046000	USD
CY2020Q4	us-gaap	Securities Borrowed Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesBorrowedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	4833374000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	11939773000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	6843004000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	5096769000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Cash SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnCash	412327000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	4578560000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	105882000	USD
CY2020Q4	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	1810748000	USD
CY2020Q4	us-gaap	Securities Loaned Asset SecuritiesLoanedAsset	0	USD
CY2020Q4	us-gaap	Securities Loaned SecuritiesLoaned	1810748000	USD
CY2020Q4	us-gaap	Securities Loaned Collateral Right To Reclaim Cash SecuritiesLoanedCollateralRightToReclaimCash	395342000	USD
CY2020Q4	us-gaap	Securities Loaned Collateral Right To Reclaim Securities SecuritiesLoanedCollateralRightToReclaimSecurities	1397550000	USD
CY2020Q4	us-gaap	Securities Loaned Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election SecuritiesLoanedOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	17856000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	15159273000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	6843004000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	8316269000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	412327000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	7122422000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	781520000	USD
CY2021Q2	jef	Securities Borrowed Asset Net Subject To Review SecuritiesBorrowedAssetNetSubjectToReview	4032000000.0	USD
CY2021Q2	jef	Securities Borrowed Asset Collateral Received Subject To Review SecuritiesBorrowedAssetCollateralReceivedSubjectToReview	3904700000	USD
CY2021Q2	jef	Securities Sold Under Agreements To Repurchase Net Amount Subject To Review SecuritiesSoldUnderAgreementsToRepurchaseNetAmountSubjectToReview	520000000.0	USD
CY2021Q2	jef	Securities Sold Under Agreements To Repurchase Collateral Pledged Subject To Review SecuritiesSoldUnderAgreementsToRepurchaseCollateralPledgedSubjectToReview	533600000	USD
CY2020Q4	jef	Securities Borrowed Asset Net Subject To Review SecuritiesBorrowedAssetNetSubjectToReview	4757800000	USD
CY2020Q4	jef	Securities Borrowed Asset Collateral Received Subject To Review SecuritiesBorrowedAssetCollateralReceivedSubjectToReview	4617000000.0	USD
CY2020Q4	jef	Securities Sold Under Agreements To Repurchase Net Amount Subject To Review SecuritiesSoldUnderAgreementsToRepurchaseNetAmountSubjectToReview	720000000.0	USD
CY2020Q4	jef	Securities Sold Under Agreements To Repurchase Collateral Pledged Subject To Review SecuritiesSoldUnderAgreementsToRepurchaseCollateralPledgedSubjectToReview	733900000	USD
CY2021Q2	us-gaap	Cash And Securities Segregated Under Federal And Other Regulations CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations	901400000	USD
CY2020Q4	us-gaap	Cash And Securities Segregated Under Federal And Other Regulations CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations	604300000	USD
CY2021Q2	jef	Assets Transferred Due To Securitization AssetsTransferredDueToSecuritization	3146500000	USD
CY2020Q2	jef	Assets Transferred Due To Securitization AssetsTransferredDueToSecuritization	1475800000	USD
	jef	Assets Transferred Due To Securitization AssetsTransferredDueToSecuritization	6730000000.0	USD
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CY2021Q2	jef	Proceeds On New Securitizations ProceedsOnNewSecuritizations	3146500000	USD
CY2020Q2	jef	Proceeds On New Securitizations ProceedsOnNewSecuritizations	1475700000	USD
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CY2021Q2	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	5100000	USD
CY2020Q2	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	7200000	USD
	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	11100000	USD
	us-gaap	Cash Flows Between Transferee And Transferor Proceeds From New Transfers CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers	11700000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1686563000	USD
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CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	1728115000	USD
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CY2020Q2	us-gaap	Equity Method Investments EquityMethodInvestments	1559793000	USD
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CY2020Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-6721000	USD
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CY2021Q2	jef	Equity Method Investment Other Income Losses Related To Associated Companies Primarily Classified As Revenues EquityMethodInvestmentOtherIncomeLossesRelatedToAssociatedCompaniesPrimarilyClassifiedAsRevenues	65138000	USD
CY2020Q2	jef	Equity Method Investment Other Income Losses Related To Associated Companies Primarily Classified As Revenues EquityMethodInvestmentOtherIncomeLossesRelatedToAssociatedCompaniesPrimarilyClassifiedAsRevenues	-54895000	USD
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CY2021Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	160974000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	167153000	USD
CY2021Q2	us-gaap	Goodwill Goodwill	1751506000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	1746314000	USD
CY2021Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	475834000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	764715000	USD
CY2021Q2	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0149
CY2020Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0187
CY2021Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1912480000	USD
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1913467000	USD
CY2021Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3600000	USD
CY2020Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3900000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7200000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7700000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	7179000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	11134000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	9900000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	9143000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	8632000	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	8823245000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	8352039000	USD
CY2021Q2	us-gaap	Redeemable Noncontrolling Interest Equity Other Carrying Amount RedeemableNoncontrollingInterestEquityOtherCarryingAmount	34500000	USD
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Other Carrying Amount RedeemableNoncontrollingInterestEquityOtherCarryingAmount	24700000	USD
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2021Q2	us-gaap	Share Based Compensation ShareBasedCompensation	10100000	USD
CY2020Q2	us-gaap	Share Based Compensation ShareBasedCompensation	10700000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	64300000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	20700000	USD
CY2021Q2	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2100000	USD
CY2020Q2	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2700000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7200000	USD
CY2021Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M6D
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5300000	USD
CY2021Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	37800000	USD
CY2021Q2	jef	Other Shares Issuable OtherSharesIssuable	1110000	shares
CY2021Q2	jef	Potential Maximum Increase To Common Shares Outstanding From Restricted Stock And Other Shares PotentialMaximumIncreaseToCommonSharesOutstandingFromRestrictedStockAndOtherShares	30549000	shares
CY2021Q2	jef	Restricted Cash Awards Compensation Cost Not Yet Recognized RestrictedCashAwardsCompensationCostNotYetRecognized	401500000	USD
CY2021Q2	jef	Restricted Cash Awards Compensation Cost Not Yet Recognized Period For Recognition RestrictedCashAwardsCompensationCostNotYetRecognizedPeriodForRecognition	P3Y
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1492353000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	749919000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2924996000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1662735000	USD
CY2021Q2	jef	Revenue Other Sources RevenueOtherSources	673976000	USD
CY2020Q2	jef	Revenue Other Sources RevenueOtherSources	627612000	USD
	jef	Revenue Other Sources RevenueOtherSources	1944921000	USD
	jef	Revenue Other Sources RevenueOtherSources	1407060000	USD
CY2021Q2	us-gaap	Revenues Revenues	2166329000	USD
CY2020Q2	us-gaap	Revenues Revenues	1377531000	USD
	us-gaap	Revenues Revenues	4869917000	USD
	us-gaap	Revenues Revenues	3069795000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1492353000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1492353000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	749919000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	749919000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2924996000	USD
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	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1662735000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1662735000	USD
CY2021Q2	jef	Contract With Customer Revenue Relatedto Performance Obligations Satisfiedin Previous Periods ContractWithCustomerRevenueRelatedtoPerformanceObligationsSatisfiedinPreviousPeriods	20900000	USD
CY2020Q2	jef	Contract With Customer Revenue Relatedto Performance Obligations Satisfiedin Previous Periods ContractWithCustomerRevenueRelatedtoPerformanceObligationsSatisfiedinPreviousPeriods	7400000	USD
	jef	Contract With Customer Revenue Relatedto Performance Obligations Satisfiedin Previous Periods ContractWithCustomerRevenueRelatedtoPerformanceObligationsSatisfiedinPreviousPeriods	41400000	USD
	jef	Contract With Customer Revenue Relatedto Performance Obligations Satisfiedin Previous Periods ContractWithCustomerRevenueRelatedtoPerformanceObligationsSatisfiedinPreviousPeriods	10500000	USD
CY2021Q2	jef	Revenues Associated With Distribution Services RevenuesAssociatedWithDistributionServices	5600000	USD
CY2020Q2	jef	Revenues Associated With Distribution Services RevenuesAssociatedWithDistributionServices	4500000	USD
	jef	Revenues Associated With Distribution Services RevenuesAssociatedWithDistributionServices	8500000	USD
	jef	Revenues Associated With Distribution Services RevenuesAssociatedWithDistributionServices	10100000	USD
CY2021Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	344700000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	332500000	USD
CY2021Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	35100000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	14800000	USD
CY2021Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	4100000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	7200000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	9400000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	7900000	USD
CY2021Q2	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	1200000	USD
CY2020Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	1800000	USD
CY2021Q2	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	800000	USD
CY2020Q2	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	1800000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	1800000	USD
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	3700000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	454000000.0	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	97200000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	401400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	87100000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	452500000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	393700000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	339100000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.266
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	77700000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.333
CY2021Q2	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	352596000	USD
CY2020Q2	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	44919000	USD
	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	935031000	USD
	jef	Net Income Loss Available To Common Stockholders NetIncomeLossAvailableToCommonStockholders	157929000	USD
CY2021Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	2178000	USD
CY2020Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	288000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	5470000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	988000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	350418000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	44631000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	929561000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	156941000	USD
CY2021Q2	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	43000	USD
CY2020Q2	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	-9000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	107000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	-11000	USD
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	127500000	USD
CY2021Q2	jef	Mandatorily Redeemable Convertible Preferred Share Dividends MandatorilyRedeemableConvertiblePreferredShareDividends	1626000	USD
CY2020Q2	jef	Mandatorily Redeemable Convertible Preferred Share Dividends MandatorilyRedeemableConvertiblePreferredShareDividends	0	USD
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	jef	Mandatorily Redeemable Convertible Preferred Share Dividends MandatorilyRedeemableConvertiblePreferredShareDividends	0	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	352087000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	44622000	USD
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	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	156930000	USD
CY2021Q2	jef	Weighted Average Common Shares Outstanding WeightedAverageCommonSharesOutstanding	246937000	shares
CY2020Q2	jef	Weighted Average Common Shares Outstanding WeightedAverageCommonSharesOutstanding	269362000	shares
	jef	Weighted Average Common Shares Outstanding WeightedAverageCommonSharesOutstanding	248144000	shares
	jef	Weighted Average Common Shares Outstanding WeightedAverageCommonSharesOutstanding	278022000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	263280000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	286764000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	264829000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	294589000	shares
CY2021Q2	jef	Incremental Common Shares Attributable To Mandatorily Redeemable Convertible Preferred Shares IncrementalCommonSharesAttributableToMandatorilyRedeemableConvertiblePreferredShares	4441000	shares
CY2020Q2	jef	Incremental Common Shares Attributable To Mandatorily Redeemable Convertible Preferred Shares IncrementalCommonSharesAttributableToMandatorilyRedeemableConvertiblePreferredShares	0	shares
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CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	271092000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	286764000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	271948000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	295301000	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	1638600	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	1846400	shares
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CY2020Q1	jef	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	250000000.0	USD
CY2020Q1	jef	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	100000000	USD
CY2020Q2	jef	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	176700000	USD
CY2020Q3	jef	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	128000000.0	USD
CY2021Q1	jef	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	192800000	USD
CY2021Q1	jef	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	127500000	USD
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CY2021Q2	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	250000000.0	USD
CY2021Q2	us-gaap	Contractual Obligation Future Minimum Payments Due Remainder Of Fiscal Year ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear	12432500000	USD
CY2021Q2	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	449500000	USD
CY2021Q2	us-gaap	Contractual Obligation Due In Second And Third Year ContractualObligationDueInSecondAndThirdYear	395800000	USD
CY2021Q2	us-gaap	Contractual Obligation Due In Fourth And Fifth Year ContractualObligationDueInFourthAndFifthYear	72000000.0	USD
CY2021Q2	us-gaap	Contractual Obligation Due After Fifth Year ContractualObligationDueAfterFifthYear	33700000	USD
CY2021Q2	us-gaap	Contractual Obligation ContractualObligation	13383500000	USD
CY2021Q2	jef	Derivative Contracts Meeting Definitionof A Guarantee DerivativeContractsMeetingDefinitionofAGuarantee	173700000	USD
CY2021Q2	us-gaap	Revenues Net Of Interest Expense RevenuesNetOfInterestExpense	1950507000	USD
CY2020Q2	us-gaap	Revenues Net Of Interest Expense RevenuesNetOfInterestExpense	1147589000	USD
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CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	474139000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	75507000	USD
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CY2021Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	39440000	USD
CY2020Q2	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	40366000	USD
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CY2021Q2	us-gaap	Assets Assets	57978969000	USD
CY2020Q4	us-gaap	Assets Assets	53118352000	USD

Files In Submission

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$JEF
Jefferies Financial Group Inc. Stock $jef

2021 Q2 Form 10-Q Financial Statement

#000009622321000030 Filed on July 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$JEF Jefferies Financial Group Inc. Stock $jef

2021 Q2 Form 10-Q Financial Statement

#000009622321000030 Filed on July 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$JEF
Jefferies Financial Group Inc. Stock $jef