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Regulatory Requirements (Tables) | 12 Months Ended
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Dec. 31, 2019
Regulatory Requirements [Abstract] |
Summary Of Capital, Capital Requirements And Excess Capital |
|  | Net Capital/ |  |  |  |  |  |
|  | Eligible Equity |  | Requirement |  | Excess
|  | (in millions)
IB LLC |  | $ | 5,381 |  | $ | 549 |  | $ | 4,832
IBKRFS |  |  | 584 |  |  | 91 |  |  | 493
IBHK |  |  | 360 |  |  | 145 |  |  | 215
Other regulated operating subsidiaries |  |  | 867 |  |  | 44 |  |  | 823
|  | $ | 7,192 |  | $ | 829 |  | $ | 6,363

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