STOCK PROGRAMS - Compensation Expense and Stock Options (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense	$ 56	$ 58
Income tax benefit	$ 11	$ 12
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)	$ 199.49
Weighted-average grant date fair value (in dollars per share)	$ 51.42
Additional General Disclosures
Intrinsic value of stock options exercised (in dollars)	$ 116

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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