XML 57 R45.htm IDEA: XBRL DOCUMENT
v3.20.2

Investments - Additional Information (Detail) - USD ($) $ in Billions | Sep. 30, 2020 | Jun. 30, 2020
--- | --- | ---
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 | $ 1.4 | $ 1.4

X
- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120269885&loc=SL75117539-209714 + Details
Name: | us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration