XML 83 R76.htm IDEA: XBRL DOCUMENT v3.10.0.1

Marketable Securities - Additional Information (Detail) $ in Millions	Jun. 30, 2018 USD ($)
Accounting Standards Update 2016-01 [Member]
Gain (Loss) on Investments [Line Items]
Reclassification of previously recognized fair value gains from accumulated other comprehensive income to retained earnings	$ 31

X

- Definition

Amount reclassified to unappropriated retained earnings from accumulated increase (decrease) in the fair value of the financial assets (liabilities) of the collateralized financing entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 65
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=96859814&loc=SL52289068-158248

+ Details

Name:	us-gaap_ReclassificationToUnappropriatedRetainedEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201601Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: