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Regulatory Requirements (Summary Of Capital, Capital Requirements And Excess Capital) (Details) $ in Millions | Dec. 31, 2017 USD ($)
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Net Capital / Eligible Equity | $ 5,214
Required net capital | 709
Excess regulatory capital | 4,505
IB LLC [Member] |
Net Capital / Eligible Equity | 3,548
Required net capital | 495
Excess regulatory capital | 3,053
TH LLC [Member] |
Net Capital / Eligible Equity | 279
Required net capital | 1
Excess regulatory capital | 278
THE [Member] |
Net Capital / Eligible Equity | 614
Required net capital | 92
Excess regulatory capital | 522
Other Regulated Operating Companies [Member] |
Net Capital / Eligible Equity | 773
Required net capital | 121
Excess regulatory capital | $ 652

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- Definition Eligible equity is equal to the sum of audited capital and reserves and the eligible portion of subordinated debt. Net capital is equal to the net worth of the broker dealer, less certain items such as exchange memberships, carrying value of securities not readily marketable, haircuts on marketable securities in proprietary accounts, furniture and equipment and other illiquid assets as defined. + References No definition available. + Details
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- Definition The amount by which the company's Total Capital exceeds the minimum required for capital adequacy purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 + Details
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- Definition Minimum amount of net capital required to be maintained by the entity to engage in securities transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
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- Details
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- Details
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- Details
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