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Investments - Additional Information (Detail) - USD ($) $ in Billions | Sep. 30, 2023 | Jun. 30, 2023
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Investments, Debt and Equity Securities [Abstract] |  |
Equity investments without readily determinable fair values measured at cost with adjustments for observable changes in price or impairments | $ 4.2 | $ 4.2

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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479536/321-10-50-3 + Details
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