ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in AOCI by Component (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Changes in AOCI, net of tax by component
Beginning of the period	$ 5,585	$ 5,590
Amount of (Gain) Loss Reclassified from AOCI into Earnings	(50)	(70)
Benefit (provision) for income taxes	(6)	51	$ (61)
End of the period	5,314	5,585	5,590
Accumulated other comprehensive loss	(1,140)	(934)
AOCI
Changes in AOCI, net of tax by component
Beginning of the period	(934)	(762)	(470)
End of the period	(1,140)	(934)	(762)
Accumulated other comprehensive loss	(1,140)	(934)	(762)
Net derivative instruments
Changes in AOCI, net of tax by component
Beginning of the period	44	68	(2)
Other comprehensive income (loss), before reclassifications, before tax	79	48	93
Benefit (provision) for income taxes	(18)	(11)	(21)
Benefit (provision) for deferred income taxes on reclassification	16	18	0
End of the period	52	44	68
Net derivative instruments | Foreign currency forward contracts
Changes in AOCI, net of tax by component
Amount of (Gain) Loss Reclassified from AOCI into Earnings	(50)	(71)	(3)
Net derivative instruments | Interest rate-related derivatives
Changes in AOCI, net of tax by component
Amount of (Gain) Loss Reclassified from AOCI into Earnings	0	1	1
Net derivative instruments | Cross-currency swap contracts
Changes in AOCI, net of tax by component
Amount of (Gain) Loss Reclassified from AOCI into Earnings	(19)	(9)	0
Amounts Included in Net Periodic Benefit Cost
Changes in AOCI, net of tax by component
Beginning of the period	(177)	(114)	(179)
End of the period	(183)	(177)	(114)
Net actuarial gains (losses) recognized
Changes in AOCI, net of tax by component
Other comprehensive income (loss), before reclassifications, before tax	(27)	(79)	71
Amount of (Gain) Loss Reclassified from AOCI into Earnings	(4)	0	18
Net prior service cost (credit) recognized
Changes in AOCI, net of tax by component
Other comprehensive income (loss), before reclassifications, before tax	25	0	(1)
Amount of (Gain) Loss Reclassified from AOCI into Earnings	(3)	(1)	(1)
Translation adjustments
Changes in AOCI, net of tax by component
Other comprehensive income (loss), before reclassifications, before tax	1	(1)	0
Settlements
Changes in AOCI, net of tax by component
Amount of (Gain) Loss Reclassified from AOCI into Earnings	0	1	0
Benefit (provision) for income taxes
Changes in AOCI, net of tax by component
Benefit (provision) for income taxes	0	17	(18)
Provision for deferred income taxes on reclassification
Changes in AOCI, net of tax by component
Benefit (provision) for deferred income taxes on reclassification	2	0	(4)
Translation adjustments
Changes in AOCI, net of tax by component
Beginning of the period	(801)	(716)	(289)
Other comprehensive income (loss), before reclassifications, before tax	(129)	(112)	(409)
Purchase of shares from redeemable noncontrolling interest	(73)	0	0
Benefit (provision) for income taxes	(6)	27	(18)
End of the period	$ (1,009)	$ (801)	$ (716)