XML 34 R60.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Revenue From Contracts With Customers (Disaggregation of Revenue ) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer, Excluding Assessed Tax	$ 847	$ 925
Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	843	918
Market Making [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2	5
Corporate [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2	2
United States [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	603	665
United States [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	599	658
United States [Member] | Market Making [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2	5
United States [Member] | Corporate [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2	2
International [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	244	260
International [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	244	260
Commissions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	706	777
Commissions [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	706	777
Market Data Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	45	46
Market Data Fees [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	45	46
Risk Exposure Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	16	26
Risk Exposure Fees [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	16	26
Payments For Order Flow [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	21	21
Payments For Order Flow [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	21	21
Minimum Activity Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	27	23
Minimum Activity Fees [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	27	23
Others [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	32	32
Others [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	28	25
Others [Member] | Market Making [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	2	5
Others [Member] | Corporate [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2	$ 2

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ibkr_ElectronicBrokerageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ibkr_MarketMakingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=us-gaap_NonUsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ibkr_CommissionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ibkr_MarketDataFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ibkr_RiskExposureFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ibkr_PaymentsForOrderFlowMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ibkr_AccountActivityFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ibkr_OthersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: