Fair Value Measurements

6 Months Ended

Mar. 31, 2024

Assets and liabilities measured at fair value on a recurring basis (in millions):


			Fair Value Measurements at Reporting Date Using
	Balance at March 31, 2024		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents	$	2,764.1	$	2,764.1	$	—	$	—
Short-term investments:
Available-for-sale debt securities



Corporate debt securities	37.7		—		37.7		—

Foreign corporate bonds	0.2		—		0.2		—
Mortgage and other asset-backed securities	0.3		—		0.3		—
State and local government obligations	1.4		—		1.4		—
U.S. government treasury securities	16.5		16.5		—		—
Total available-for-sale debt securities	56.1		16.5		39.6		—
Structured deposits	221.9		—		221.9		—
Marketable equity securities	84.5		84.5		—		—
Total short-term investments	362.5		101.0		261.5		—
Prepaid expenses and other current assets:
Derivative assets	48.1		—		48.1		—
Long-term investments:
Available-for-sale debt securities



Corporate debt securities	127.4		—		116.9		10.5

Mortgage and other asset-backed securities	52.6		—		52.6		—
State and local government obligations	2.7		—		2.7		—
U.S. government treasury securities	97.5		97.5		—		—
Total available-for-sale debt securities	280.2		97.5		172.2		10.5
Structured deposits	0.2		—		0.2		—
Total long-term investments	280.4		97.5		172.4		10.5
Other long-term assets:
Derivative assets	181.2		—		181.2		—
Total assets	$	3,636.3	$	2,962.6	$	663.2	$	10.5
Liabilities:
Accrued liabilities:
Derivative liabilities	$	5.5	$	—	$	5.5	$	—
Other long-term liabilities:
Derivative liabilities	35.1		—		35.1		—
Total liabilities	$	40.6	$	—	$	40.6	$	—


			Fair Value Measurements at Reporting Date Using
	Balance at October 1, 2023		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents	$	3,551.5	$	3,551.5	$	—	$	—
Short-term investments:
Available-for-sale debt securities


Corporate debt securities	64.0		—		64.0		—
U.S. government treasury securities	2.8		2.8		—		—
Foreign government obligations	3.9		—		3.9		—

Total available-for-sale debt securities	70.7		2.8		67.9		—
Structured deposits	261.2		—		261.2		—
Marketable equity securities	69.6		69.6		—		—
Total short-term investments	401.5		72.4		329.1		—
Prepaid expenses and other current assets:
Derivative assets	41.0		—		41.0		—
Long-term investments:
Available-for-sale debt securities



Corporate debt securities	91.1		—		91.1		—

Mortgage and other asset-backed securities	50.2		—		50.2		—
State and local government obligations	1.3		—		1.3		—
U.S. government treasury securities	104.7		104.7		—		—
Total long-term investments	247.3		104.7		142.6		—
Other long-term assets:
Derivative assets	153.0		—		153.0		—
Total assets	$	4,394.3	$	3,728.6	$	665.7	$	—
Liabilities:
Accrued liabilities:
Derivative liabilities	$	3.6	$	—	$	3.6	$	—
Other long-term liabilities:
Derivative liabilities	43.2		—		43.2		—
Total liabilities	$	46.8	$	—	$	46.8	$	—

There were no material transfers between levels, and there was no significant activity within Level 3 instruments during the periods presented. The fair values of any financial instruments presented above exclude the impact of netting assets and liabilities when a legally enforceable master netting agreement exists.

Gross unrealized holding gains and losses on available-for-sale debt securities, structured deposits, and marketable equity securities were not material as of March 31, 2024 and October 1, 2023.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Assets and liabilities recognized or disclosed at fair value on the consolidated financial statements on a nonrecurring basis include items such as property, plant and equipment, ROU assets, goodwill and other intangible assets, equity and other investments, and other assets. These assets are measured at fair value if determined to be impaired.

The estimated fair value of our long-term debt based on the quoted market price (Level 2) is included at Note 8, Debt. There were no material fair value adjustments during the two quarters ended March 31, 2024 and April 2, 2023.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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