Additional Financial Information - Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 8,389	$ 10,311	$ 10,477
Fiscal year activity	390	(205)	(252)
Ending balance	9,146	8,389	10,311
Net change in the fair value of cash flow hedges, income tax expense	0	(3)	1
Derivatives, income tax expense			1
Pension plans, income tax expense (benefit)	(1)	(11)	(10)
Foreign currency translation adjustments, fiscal year activity	468	(200)	(247)
Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		9	20
Ending balance			9
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-01
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			22
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,331)	(1,126)	(874)
Ending balance	(941)	(1,331)	(1,126)
Accumulated Other Comprehensive Loss | Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		3	(22)
Ending balance			3
Unrealized holding gains (losses) on securities:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	0	0	22
Fiscal year activity	0	0	(22)
Ending balance	0	0	0
Cash flow hedge adjustments:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	2	6	4
Fiscal year activity	(2)	(4)	2
Ending balance	0	2	6
Benefit Plan Adjustments:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(394)	(352)	(309)
Fiscal year activity	2	(42)	(43)
Ending balance	(392)	(394)	(352)
Foreign currency translation adjustments:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(939)	(780)	(591)
Fiscal year activity	390	(159)	(189)
Ending balance	(549)	(939)	(780)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	807	1,167	1,186
Ending balance	935	807	1,167
Foreign currency translation adjustments, fiscal year activity	$ 78	$ (43)	(58)
Noncontrolling Interests | Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 10