Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Numerator [Abstract]
Consolidated net income	$ 126	$ 74	$ 173	$ 162
Denominator [Abstract]
Weighted average common shares outstanding - basic (in shares)	132.4	130.5	132.4	130.8
Dilutive shares (in shares)	1.7	3.3	1.8	3.1
Weighted average common and common equivalent shares outstanding - diluted (in shares)	134.1	133.8	134.2	133.9
Per Common Share Income [Abstract]
Basic (in dollars per share)	$ 0.95	$ 0.57	$ 1.31	$ 1.24
Diluted (in dollars per share)	$ 0.94	$ 0.55	$ 1.29	$ 1.21
Stock Options [Member]
Basic and Diluted Net Income Per Share [Abstract]
Antidilutive shares excluded from computation of earnings per share (in shares)	7.1		7.1