Debt (Tables)

12 Months Ended

Sep. 30, 2022

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Debt consists of the following (in millions, except percentages):

			As of
	Effective Interest Rate		September 30, 2022		October 1, 2021
0.90% Senior Notes due 2023	1.15	%	$	500.0	$	500.0
1.80% Senior Notes due 2026	1.97	%	500.0		500.0
3.00% Senior Notes due 2031	3.13	%	500.0		500.0
Term Loans due 2024	2.11	%	700.0		750.0
Unamortized debt discount and issuance costs			(10.9)		(14.4)
Total debt			2,189.1		2,235.6
Less: current portion of long-term debt			499.2		—
Total			$	1,689.9	$	2,235.6

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

The carrying amount and estimated fair value of debt consists of the following (in millions):

	As of
	September 30, 2022				October 1, 2021
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
0.90% Senior Notes due 2023	$	499.2	$	488.5	$	497.9	$	501.0
1.80% Senior Notes due 2026	496.8		431.2		496.0		507.5
3.00% Senior Notes due 2031	494.5		377.6		493.9		514.6
Total debt under Senior Notes	$	1,490.5	$	1,297.3	$	1,487.8	$	1,523.1