XML 64 R53.htm IDEA: XBRL DOCUMENT v3.19.2

Revenue From Contracts With Customers (Disaggregation of Revenue ) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue from Contract with Customer, Excluding Assessed Tax	$ 213	$ 221	$ 421	$ 477
Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	212	219	419	473
Market Making [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		1	1	3
Corporate [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1	1	1	1
United States [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	154	159	302	343
United States [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	153	157	300	339
United States [Member] | Market Making [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		1	1	3
United States [Member] | Corporate [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	1	1	1	1
International [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	59	62	119	134
International [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	59	62	119	134
Commissions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	178	185	351	405
Commissions [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	178	185	351	405
Market Data Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	11	11	23	22
Market Data Fees [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	11	11	23	22
Risk Exposure Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	5	7	9	15
Risk Exposure Fees [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	5	7	9	15
Payments For Order Flow [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6	5	11	10
Payments For Order Flow [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6	5	11	10
Minimum Activity Fees [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6	5	13	10
Minimum Activity Fees [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6	5	13	10
Others [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	7	8	14	15
Others [Member] | Electronic Brokerage [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	6	6	12	11
Others [Member] | Market Making [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		1	1	3
Others [Member] | Corporate [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1	$ 1	$ 1	$ 1

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&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: