Marketable Securities (Tables)

12 Months Ended

Oct. 01, 2021

Investments, Debt and Equity Securities [Abstract]

Debt Securities, Available-for-sale

The Company's portfolio of available-for-sale marketable securities consists of the following (in millions):

	Current				Noncurrent
Available-for-sale:	October 1, 2021		October 2, 2020		October 1, 2021		October 2, 2020
U.S. Treasury and government	$	7.6	$	129.4	$	6.0	$	5.0
Corporate bonds and notes	117.0		276.8		—		—
Municipal bonds	12.6		1.9		1.1		0.2
Total	$	137.2	$	408.1	$	7.1	$	5.2