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Revenue From Contracts With Customers (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Year-Ended December 31, 2018
﻿ |  | Electronic brokerage |  | Market making |  | Corporate |  | Total
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | (in millions)
﻿Geographic location 1 |  |  |  |  |  |  |  |  |  |  |  |
﻿ United States |  | $ | 658 |  | $ | 5 |  | $ | 2 |  | $ | 665
﻿ International |  |  | 260 |  |  | - |  |  | - |  |  | 260
﻿ |  | $ | 918 |  | $ | 5 |  | $ | 2 |  | $ | 925
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿Major types of services |  |  |  |  |  |  |  |  |  |  |  |
﻿ Commissions |  | $ | 777 |  | $ | - |  | $ | - |  | $ | 777
﻿ Market data fees 2 |  |  | 46 |  |  | - |  |  | - |  |  | 46
﻿ Risk exposure fees 2 |  |  | 26 |  |  | - |  |  | - |  |  | 26
﻿ Payments for order flow 2 |  |  | 21 |  |  | - |  |  | - |  |  | 21
﻿ Minimum activity fees 2 |  |  | 23 |  |  | - |  |  | - |  |  | 23
﻿ Other 2 |  |  | 25 |  |  | 5 |  |  | 2 |  |  | 32
﻿ |  | $ | 918 |  | $ | 5 |  | $ | 2 |  | $ | 925
﻿ ﻿
| (1) |  | Based on the location of the subsidiaries in which the revenues are recorded.
| (2) |  | Included in other income on the consolidated statements of comprehensive income.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: 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
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- References No definition available. + Details
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