Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Numerator [Abstract]
Consolidated net income	$ 130	$ 47
Denominator [Abstract]
Weighted average common shares outstanding - basic (in shares)	133.6	132.3
Dilutive shares (in shares)	2.1	2.0
Weighted average common and common equivalent shares outstanding - diluted (in shares)	135.7	134.3
Per Common Share Income [Abstract]
Basic (in dollars per share)	$ 0.97	$ 0.36
Diluted (in dollars per share)	$ 0.96	$ 0.35
Stock Options and Restricted Stock Units [Member]
Basic and Diluted Net Income Per Share [Abstract]
Antidilutive shares excluded from computation of earnings per share (in shares)	3.2	7.2