Additional Financial Information - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 10,311	$ 10,477	$ 11,073
Fiscal year activity	(205)	(252)	90
Ending balance	8,389	10,311	10,477
Unrealized holding (losses) gains on securities, income tax (benefit) expense			1
Derivatives, income tax expense	(3)	1	2
Pension plans, income tax expense (benefit)	(11)	(10)	28
Foreign currency translation adjustments, fiscal year activity	(200)	(247)	(123)
Share of other comprehensive (loss) income from equity affiliates, income tax expense (benefit)			5
Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	9	20
Ending balance		9	20
Cumulative Effect, Period of Adoption, Adjustment \| Accounting Standards Update 2016-01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		22
Ending balance			22
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,126)	(874)	(964)
Ending balance	(1,331)	(1,126)	(874)
Accumulated Other Comprehensive Loss \| Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	3	(22)
Ending balance		3	(22)
Unrealized holding gains (losses) on securities:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	0	22	(5)
Fiscal year activity	0	(22)	27
Ending balance	0	0	22
Cash flow hedge adjustments:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	6	4	0
Fiscal year activity	(4)	2	4
Ending balance	2	6	4
Benefit Plan Adjustments:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(352)	(309)	(437)
Fiscal year activity	(42)	(43)	128
Ending balance	(394)	(352)	(309)
Foreign currency translation adjustments:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(780)	(591)	(510)
Fiscal year activity	(159)	(189)	(81)
Ending balance	(939)	(780)	(591)
Share of other comprehensive income from equity affiliates, net:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	0	0	(12)
Fiscal year activity	0	0	12
Ending balance	0	0	0
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,167	1,186	284
Ending balance	807	1,167	1,186
Foreign currency translation adjustments, fiscal year activity	(43)	(58)	(42)
Noncontrolling Interests \| Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 0	10
Ending balance		$ 0	$ 10

Other Comprehensive Income Loss from Equity Affiliates Tax Expense Benefit

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Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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