XML 42 R31.htm IDEA: XBRL DOCUMENT v3.8.0.1

Segment And Geographic Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment And Geographic Information [Abstract]

Segment Information



		Three Months Ended March 31,
		2018			2017
		(in millions)
Net revenues
Electronic brokerage		$	465		$	314
Market making			21			8
Corporate			41			52
Total net revenues		$	527		$	374
Income before income taxes
Electronic brokerage		$	291		$	185
Market making			9			(22)
Corporate			40			50
Total income before income taxes		$	340		$	213







		March 31,			December 31,
		2018			2017

		(in millions)
Segment assets
Electronic brokerage		$	57,316		$	58,787
Market making			3,618			8,469
Corporate			(1,841)			(6,094)
Total assets		$	59,093		$	61,162



Schedule Of Total Net Revenues And Income Before Income Taxes By Geographic Area



		Three Months Ended March 31,
		2018			2017
		(in millions)
Net revenues
United States		$	420		$	303
International			107			71
Total net revenues		$	527		$	374
Income before income taxes
United States		$	294		$	195
International			46			18
Total income before income taxes		$	340		$	213



X

- Definition

Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

+ Details

Name:	us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599

+ Details

Name:	us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration