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Regulatory Requirements (Tables) | 9 Months Ended
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Sep. 30, 2020
Regulatory Requirements [Abstract] |
Summary Of Capital, Capital Requirements And Excess Capital |
|  | Net Capital/ |  |  |  |  |  |
|  | Eligible Equity |  | Requirement |  | Excess
|  | (in millions)
IB LLC |  | $ | 4,621 |  | $ | 520 |  | $ | 4,101
IBKRFS |  |  | 593 |  |  | 21 |  |  | 572
IBHK |  |  | 632 |  |  | 225 |  |  | 407
Other regulated operating subsidiaries |  |  | 896 |  |  | 56 |  |  | 840
|  | $ | 6,742 |  | $ | 822 |  | $ | 5,920

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