SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition, Payments to Customers, Advertising and Promotion (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Revenue Recognition
Product return by customers (as a percent)	3.30%	3.50%	3.10%
Payments to Customers
Payments to customers	$ 1,491	$ 1,405	$ 1,387
Advertising and Promotion
Global net expenses for advertising, merchandising, sampling, promotion and product development	3,508	2,908	2,821
Global net expenses excluding purchase with purchase, gift with purchase, for advertising, merchandising, sampling, promotion and product development costs	$ 3,287	$ 2,689	$ 2,607