STOCK PROGRAMS - Narrative (Details) $ / shares in Units, $ in Millions		1 Months Ended				12 Months Ended
	Sep. 03, 2024 shares	Aug. 31, 2023 shares	Mar. 31, 2021 USD ($) tranche shares	Feb. 28, 2018 USD ($) tranche shares	Sep. 30, 2015 tranche shares	Jun. 30, 2024 USD ($) tranche plan $ / shares shares	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 $ / shares	Sep. 04, 2015 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award
Number of active equity compensation plans | plan						2
Total unrecognized compensation cost related to unvested stock-based awards | $						$ 208
Weighted-average period over which compensation cost related to unvested stock-based awards is expected to be recognized						1 year
Deferred compensation income to reflect additional deferrals and change in market value (in dollars) | $						$ 14	$ 7	$ 33
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]						Selling, general and administrative	Selling, general and administrative	Selling, general and administrative
Level 3 | Recurring basis
Share-based Compensation Arrangement by Share-based Payment Award
Changes in fair value, net of foreign currency remeasurements | $						$ 13	$ 22	$ (55)
Stock Options | Company Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award
Maximum exercise period for all stock options from the date of grant						10 years
Number of substantively equal tranches in which stock options grants become exercisable | tranche						3
Service period over which stock option grants generally become exercisable in substantively equal tranches						4 years
Stock Options | DECIEM 2021 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award
Service period over which stock option grants generally become exercisable in substantively equal tranches						2 years
Weighted-average grant date fair value (in dollars per share) | $ / shares									$ 1,557
Stock option liability | $						$ 0	$ 99
Employer-related payroll taxes | $						10
Intrinsic value | $						$ 114
Stock Options | DECIEM 2021 Stock Option Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Number of substantively equal tranches in which stock options grants become exercisable | tranche						2
Stock Options | DECIEM 2021 Stock Option Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Number of substantively equal tranches in which stock options grants become exercisable | tranche						7
Restricted Stock Units (RSUs) | Employee
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)						1,606,100
Weighted-average grant date fair value (in dollars per share) | $ / shares						$ 155.82
Vested (in shares)						849,700
Restricted Stock Units (RSUs) | Employee | RSU grants scheduled to vest in fiscal 2025
Share-based Compensation Arrangement by Share-based Payment Award
Vested (in shares)						600,000
Restricted Stock Units (RSUs) | Employee | RSU grants scheduled to vest in fiscal 2026
Share-based Compensation Arrangement by Share-based Payment Award
Vested (in shares)						600,000
Restricted Stock Units (RSUs) | Employee | RSU grants scheduled to vest in fiscal 2027
Share-based Compensation Arrangement by Share-based Payment Award
Vested (in shares)						400,000
Performance Share Units | Employee
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)						164,500
Weighted-average grant date fair value (in dollars per share) | $ / shares						$ 156.39
Vesting period						3 years
Vested (in shares)		200,000				44,800
Long-term Performance Share Units | Performance period ending June 30, 2018 through 2020
Share-based Compensation Arrangement by Share-based Payment Award
Common stock issued (in shares)							387,848
Cash Units
Share-based Compensation Arrangement by Share-based Payment Award
Deferred compensation income to reflect additional deferrals and change in market value (in dollars) | $						$ 13	$ 8	$ 5
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award
Number of Class A Common Stock shares authorized under active equity compensation plans (in shares)						88,800,000
Number of Class A Common Stock shares reserved and available to be granted pursuant to equity compensation plans (in shares)						7,100,000
Common stock issued (in shares)						1,385,200	1,785,100	2,689,700
Common Class A | Restricted Stock Units (RSUs) | Employee
Share-based Compensation Arrangement by Share-based Payment Award
Weighted-average grant date fair value (in dollars per share) | $ / shares						$ 155.82
Common Class A | Performance Share Units | Employee
Share-based Compensation Arrangement by Share-based Payment Award
Weighted-average grant date fair value (in dollars per share) | $ / shares						$ 156.39
Payout for performance share units in Class A Common Stock (in shares)						200,000
Common stock issued (in shares)		100,000
Common Class A | Long-term Performance Share Units | Employee | Forecast
Share-based Compensation Arrangement by Share-based Payment Award
Common stock issued (in shares)	195,940
Common Class A | Long-term Performance Share Units | Employee | Executive
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)			68,578
Payout for performance share units in Class A Common Stock (in shares)				195,940	387,848
Number of tranches | tranche				2	3
Grant date fair value (in USD) | $			$ 20	$ 27						$ 30
Common Class A | Long-term Performance Share Units | Employee | Performance periods ending June 30, 2018, 2019 and 2020 | Executive
Share-based Compensation Arrangement by Share-based Payment Award
Payout for performance share units in Class A Common Stock (in shares)					129,283
Common Class A | Long-term Performance Share Units | Employee | Share Based Compensation Award Performance Period 2021 and 2022 | Executive
Share-based Compensation Arrangement by Share-based Payment Award
Payout for performance share units in Class A Common Stock (in shares)				97,970
Common Class A | Long-Term Price-Vested Units | Employee | Executive
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)			85,927
Number of tranches | tranche			3
Grant date fair value (in USD) | $			$ 20
Consecutive trading days			20 days