Fair Value (Tables)

3 Months Ended

Jan. 02, 2026

Fair Value Disclosures [Abstract]

Fair Value Assets and Liabilities Measured on Recurring Basis

Assets and liabilities recorded at fair value on a recurring basis consisted of the following (in millions):         

	As of
	January 2, 2026								October 3, 2025
			Fair Value Measurements								Fair Value Measurements
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents (1)	$	1,550.4	$	1,550.4	$	—	$	—	$	1,161.3	$	1,120.3	$	41.0	$	—
U.S. Treasury and government securities	16.5		1.7		14.8		—		126.6		109.1		17.5		—
Corporate bonds and notes	1.7		—		1.7		—		100.5		—		100.5		—
Total assets at fair value	$	1,568.6	$	1,552.1	$	16.5	$	—	$	1,388.4	$	1,229.4	$	159.0	$	—

(1) Cash equivalents included in Levels 1 and 2 consist of money market funds, corporate bonds and notes, and U.S. Treasury and government securities purchased with ninety days or less until maturity.

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
	January 2, 2026				October 3, 2025
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
1.80% Senior Notes due 2026	$	499.6	$	494.4	$	499.4	$	491.1
3.00% Senior Notes due 2031	496.6		453.0		496.4		453.4
Total debt under Senior Notes	$	996.2	$	947.4	$	995.8	$	944.5