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STOCK PROGRAMS - Compensation Expense and Stock Options (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense	$ 71	$ 70	$ 210	$ 201
Income tax benefit	$ 13	$ 13	$ 39	$ 38
Stock Options \| Common Class A
Share-based Compensation Arrangement by Share-based Payment Award
Grant at fair value (in shares)			1.3
Exercise price (in dollars per share)			$ 199.24
Weighted-average grant date fair value (in dollars per share)			$ 51.44
Additional General Disclosures
Intrinsic value of stock options exercised (in dollars)			$ 252