Investments - Additional Information (Detail) - USD ($) |
Jun. 30, 2019 |
Jun. 30, 2018 |
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| Investment [Line Items] | ||
| Equity investments without readily determinable fair values measured at cost with adjustments for observable changes in price or impairments | $ 1,200,000,000 | $ 697,000,000 |
| U.S. Government and Agency Securities | ||
| Investment [Line Items] | ||
| Collateral received | $ 0 | $ 1,800,000,000 |
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- Definition Line items represent reporting concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The carrying value as of the balance sheet date of the assets received as collateral against securities loaned to other broker-dealers. Borrowers of securities generally are required to provide collateral to the lenders of securities, commonly cash but sometimes other securities or standby letters of credit, with a value slightly higher than that of the securities borrowed. In instances where the entity is permitted to sell or re-pledge these securities, the entity reports the fair value of the collateral received and the related obligation to return the collateral as a liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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