Net Recognized Gains (Losses) on Equity Investments (Detail) - USD ($) $ in Millions |
3 Months Ended | |
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Sep. 30, 2024 |
Sep. 30, 2023 |
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| Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items] | ||
| Net realized gains on investments sold | $ 65 | $ 45 |
| Net unrealized gains (losses) on investments still held | 412 | (123) |
| Total | 463 | (107) |
| Equity Securities | ||
| Schedule Of Gain Loss On Investments Including Marketable Securities And Investments Held At Cost Income Statement Reported Amounts Summary [Line Items] | ||
| Impairments of investments | (19) | 0 |
| Total | $ 458 | $ (78) |
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- Definition The summation of impairment on equity securities, representing the decline in fair value below cost. No definition available.
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- Definition Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of realized and unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial 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/2009/role/commonPracticeRef
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- Details
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