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Other Income (Schedule Of Components Of Other Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Other Income [Abstract] |  |  |  |
Principal transactions | $ 14 |  | $ 36 | $ 69
Gains (losses) from currency diversification strategy, net | 27 | $ (47) | (6) | (72)
Other, net | (12) |  | (5) | 1
Other income | $ 29 | $ (47) | $ 25 | $ (2)

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- Definition Gains (losses) from the Company’s currency diversification strategy, net. + References No definition available. + Details
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- Definition Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement, including gains and losses from our currency diversification strategy, financial instruments at fair value and other investments. + References No definition available. + Details
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- Definition Amount of realized and unrealized gain (loss) resulting from the difference between acquisition price and selling price or fair value of trading assets and trading liabilities, and from the firm's direct investment activity, conducted separately from customer trading activities, including, but not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=35711157&loc=d3e42567-110969 + Details
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