STOCK OPTIONS AND OTHER SHARE-BASED COMPENSATION - Share-based Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2021	Jun. 28, 2019	Jun. 29, 2018	Jun. 30, 2017
Share-based Payment Arrangement, Noncash Expense [Abstract]
Total expense	$ 94	$ 125	$ 58	$ 51
Included In:
Income from continuing operations	94	125	58	51
Tax effect on share-based compensation expense	(24)	(31)	(14)	(16)
Total share-based compensation expense after-tax	70	94	44	35
Cost of product sales and services
Share-based Payment Arrangement, Noncash Expense [Abstract]
Total expense	11	5	12	8
Included In:
Income from continuing operations	11	5	12	8
Engineering, selling and administrative expenses
Share-based Payment Arrangement, Noncash Expense [Abstract]
Total expense	83	120	46	43
Included In:
Income from continuing operations	$ 83	$ 120	$ 46	$ 43