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Segment And Geographic Information (Tables)

9 Months Ended

Sep. 30, 2016

Segment And Geographic Information [Abstract]

Segment Information



		Three Months Ended September 30,						Nine Months Ended September 30,
		2016			2015			2016			2015

		(in millions)
Net revenues
Electronic brokerage		$	288		$	300		$	945		$	878
Market making			43			90			145			229
Corporate			14			(31)			113			(189)
Total net revenues		$	345		$	359		$	1,203		$	918
Income before income taxes
Electronic brokerage		$	162		$	184		$	588		$	423
Market making			7			46			32			103
Corporate			14			(28)			113			(195)
Total income before income taxes		$	183		$	202		$	733		$	331







		September 30,			December 31,
		2016			2015

		(in millions)
Segment Assets
Electronic brokerage		$	50,307		$	44,421
Market making			11,777			10,825
Corporate			(7,020)			(6,512)
Total assets		$	55,064		$	48,734



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



		Three Months Ended September 30,						Nine Months Ended September 30,
		2016			2015			2016			2015

		(in millions)
Net revenues
United States		$	265		$	261		$	947		$	640
International			80			98			256			278
Total net revenues		$	345		$	359		$	1,203		$	918
Income before income taxes
United States		$	156		$	155		$	641		$	198
International			27			47			92			133
Total income before income taxes		$	183		$	202		$	733		$	331



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
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- 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=51669610&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8721-108599

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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