Additional Financial Information - Components of Receivables, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Jun. 30, 2019
Receivables [Abstract]
Receivables	$ 1,624	$ 1,590
Allowance for doubtful accounts	(54)	(46)
Receivables, net	$ 1,570	$ 1,544

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant