EMPLOYEE STOCK PLANS - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
Apr. 03, 2020	Sep. 27, 2019
Options
Options, outstanding, beginning balance (in shares)	2,269
Options, grants in period (in shares)	398
Options, canceled, forfeited and expired in period (in shares)	(37)
Options, exercises in period (in shares)	(64)
Options, outstanding, ending balance (in shares)	2,566
Options, exercisable (in shares)	1,619
Weighted Average Exercise Price
Options, outstanding, weighted average exercise price, beginning (in USD per share)	$ 30.60
Options, grants in period, weighted average exercise price (in USD per share)	28.12
Options, canceled, forfeited and expired in period, weighted average exercise price (in USD per share)	30.71
Options, exercises in period, weighted average exercise price (in USD per share)	22.93
Options, outstanding, weighted average exercise price, ending (in USD per share)	30.40
Options, exercisable, weighted average exercise price (in USD per share)	$ 30.27
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options, outstanding, weighted average remaining contractual term (in years)	4 years 8 months 12 days
Options, exercisable, weighted average remaining contractual term (in years)	3 years 3 months 18 days
Options, outstanding, intrinsic value	$ 0.0
Options, exercisable, intrinsic value	$ 0.0
Share price (in USD per share)	$ 20.73
Minimum
Price Range
Outstanding at period beginning and ending (in USD per share)	22.63	$ 22.63
Granted (in USD per share)	28.12
Canceled, expired or forfeited (in USD per share)	22.84
Exercised (in USD per share)	22.84
Exercisable at January 3, 2020 (in USD per share)	22.63
Maximum
Price Range
Outstanding at period beginning and ending (in USD per share)	37.60	$ 37.60
Granted (in USD per share)	28.12
Canceled, expired or forfeited (in USD per share)	37.10
Exercised (in USD per share)	23.24
Exercisable at January 3, 2020 (in USD per share)	$ 37.60

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