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Revenue From Contracts With Customers (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue


		Three Months Ended June 30, 2018
		Electronic brokerage			Market making			Corporate			Total

		(in millions)
Geographic location 1
United States		$	157		$	1		$	1		$	159
International			62			-			-			62
		$	219		$	1		$	1		$	221

Major types of services
Commissions		$	185		$	-		$	-		$	185
Market data fees 2			11			-			-			11
Risk exposure fees 2			7			-			-			7
Payments for order flow 2			5			-			-			5
Minimum activity fees 2			5			-			-			5
Other 2			6			1			1			8
		$	219		$	1		$	1		$	221


		Six Months Ended June 30, 2018
		Electronic brokerage			Market making			Corporate			Total

		(in millions)
Geographic location 1
United States		$	339		$	3		$	1		$	343
International			134			-			-			134
		$	473		$	3		$	1		$	477

Major types of services
Commissions		$	405		$	-		$	-		$	405
Market data fees 2			22			-			-			22
Risk exposure fees 2			15			-			-			15
Payments for order flow 2			10			-			-			10
Minimum activity fees 2			10			-			-			10
Other 2			11			3			1			15
		$	473		$	3		$	1		$	477

(1)

Based on the location of the subsidiaries in which the revenues are recorded.

(2)

Included in other income on the condensed consolidated statements of comprehensive income.