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Segment And Geographic Information | 12 Months Ended
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Dec. 31, 2019
Segment And Geographic Information [Abstract] |
Segment And Geographic Information | 15. Segment and Geographic Information The Company has two operating business segments: electronic brokerage and market making. These segments are supported by the corporate segment, which provides centralized services and executes the Company’s currency diversification strategy. The Company conducts its electronic brokerage business through certain Interactive Brokers subsidiaries, which provide electronic trade execution and clearing services to customers worldwide. The Company conducts its remaining market making business (see Note 2 – Discontinued Operations and Costs Associated with Exit or Disposal Cost) principally through its Timber Hill subsidiaries on some of the world’s leading exchanges and market centers, primarily in exchange-traded equities, equity options and equity-index options and futures. Significant transactions and balances between the operating subsidiaries occur, primarily as a result of certain operating subsidiaries holding exchange or clearing organization memberships, which are utilized to provide execution and clearing services to subsidiaries. Charges for transactions between segments are designed to approximate full costs. Intra-segment and intra-region income and expenses and related balances have been eliminated in this segment and geographic information to reflect the external business conducted in each segment or geographic region. Corporate items include non-allocated corporate income and expenses that are not attributed to segments for performance measurement, net gains and losses on positions held as part of the Company’s overall currency diversification strategy, corporate assets and eliminations. Management believes that the following information by business segment provides a reasonable representation of each segment’s contribution to total net revenues and income before income taxes and total assets for the periods indicated.
|  | Year-Ended December 31,
|  | 2019 |  | 2018 |  | 2017
|  | (in millions)
Net revenues |  |  |  |  |  |  |  |  |
Electronic brokerage |  | $ | 1,921 |  | $ | 1,842 |  | $ | 1,405
Market making |  |  | 67 |  |  | 76 |  |  | 86
Corporate |  |  | (51) |  |  | (15) |  |  | 211
Total net revenues |  | $ | 1,937 |  | $ | 1,903 |  | $ | 1,702
Income before income taxes |  |  |  |  |  |  |  |  |
Electronic brokerage |  | $ | 1,197 |  | $ | 1,177 |  | $ | 860
Market making |  |  | 30 |  |  | 34 |  |  | (27)
Corporate |  |  | (70) |  |  | (15) |  |  | 216
Total income before income taxes |  | $ | 1,157 |  | $ | 1,196 |  | $ | 1,049
|  | December 31,
|  | 2019 |  | 2018 |  | 2017
|  | (in millions)
Segment assets |  |  |  |  |  |  |  |  |
Electronic brokerage |  | $ | 69,857 |  | $ | 58,631 |  | $ | 58,787
Market making |  |  | 2,806 |  |  | 2,736 |  |  | 8,469
Corporate |  |  | (987) |  |  | (820) |  |  | (6,094)
Total assets |  | $ | 71,676 |  | $ | 60,547 |  | $ | 61,162
The Company operates its automated global business in the U.S. and international markets on more than 135 electronic exchanges and market centers. A significant portion of the Company’s net revenues is generated by subsidiaries operating outside the U.S. International operations are comprised of electronic brokerage and market making activities in 32 countries in Europe, Asia/Pacific and the Americas (outside the U.S.). The following table presents total net revenues and income before income taxes by geographic area for the periods indicated. The geographic analysis presented below is based on the location of the subsidiaries in which the transactions are recorded. This geographic information does not reflect the way the Company’s business is managed. ‎
|  | Year-Ended December 31,
|  | 2019 |  | 2018 |  | 2017
|  | (in millions)
Net revenues |  |  |  |  |  |  |  |  |
United States |  | $ | 1,524 |  | $ | 1,501 |  | $ | 1,393
International |  |  | 413 |  |  | 402 |  |  | 309
Total net revenues |  | $ | 1,937 |  | $ | 1,903 |  | $ | 1,702
Income before income taxes |  |  |  |  |  |  |  |  |
United States |  | $ | 997 |  | $ | 1,029 |  | $ | 947
International |  |  | 160 |  |  | 167 |  |  | 102
Total income before income taxes |  | $ | 1,157 |  | $ | 1,196 |  | $ | 1,049

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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