Debt Instrument, Basis Spread On Variable Rate, Eurocurrency Convert

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Debt Instrument, Basis Spread On Variable Rate, LIBOR Convert

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Debt Instrument, Commitment Fee, Percentage

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Debt Instrument, Offering Price, Percent Of Face Value

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Debt Instrument Percentage Of Redemption Price Fifth Period

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Debt Instrument Percentage Of Redemption Price Fourth Period

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Debt Instrument Percentage Of Redemption Price Third Period

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Debt Instrument Percentage Redemption Price Sixth Period

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Debt Instrument, Periodic Payment, Principal Per Quarter

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Debt Redemption, Premium Paid

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Long term debt obligations without convertible notes.

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Maximum borrowing under securitization program

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Percentage Price of Principal Amount for Repurchase of Senior Notes

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Term Accounts Receivable Securitization Program

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The amount owed to the reporting entity by counterparties in securitized loan transactions.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Gross amount of debt extinguished.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Borrowings and Credit Arrangements - Additional Information (Detail) - USD ($)							3 Months Ended	12 Months Ended
	Aug. 22, 2022	Sep. 27, 2021	Oct. 15, 2020	Sep. 28, 2020	Jan. 19, 2018	Apr. 25, 2016	Mar. 26, 2022	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020	Jun. 17, 2021	Jun. 11, 2021	Sep. 28, 2019	Dec. 17, 2018
Debt Instrument [Line Items]
Debt extinguishment loss								$ 700,000	$ 21,600,000	$ 0
Redemption price, percentage				40.00%
Current debt obligations, net of debt discount								$ 15,000,000.0	$ 313,000,000.0
Repayments of Other Debt							$ 63,700,000
Minimum \| Mobidiag Oy
Debt Instrument [Line Items]
Interest rate (percent)											6.00%
Maximum \| Mobidiag Oy
Debt Instrument [Line Items]
Interest rate (percent)											7.00%
2017 Credit Agreement
Debt Instrument [Line Items]
Weighted-average interest rate (percent)									1.13%
Interest rate at end of period									1.08%
Prior Credit Agreement
Debt Instrument [Line Items]
Weighted-average interest rate (percent)										2.25%
Interest rate at end of period													1.40%
Securitization Program
Debt Instrument [Line Items]
Basis spread on variable rate						0.80%		0.70%
Interest expense								$ 1,600,000	$ 900,000	$ 3,100,000
Term of accounts receivable securitization program						1 year
Accounts receivable from securitization						$ 200,000,000
Maximum borrowing under securitization program						$ 200,000,000		$ 250,000,000				$ 320,000,000
Secured Term Loan \| 2018 Amended Term Loan
Debt Instrument [Line Items]
Debt instrument face amount														$ 1,500,000,000
Secured Term Loan \| 2021 Term Loan
Debt Instrument [Line Items]
Debt instrument face amount		$ 1,500,000,000
Debt Instrument, Interest Rate, Effective Percentage								4.18%
Secured Term Loan \| 2021 Term Loan \| Eurocurrency Rate
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal Per Quarter		1,335,000,000
Debt Instrument, Commitment Fee, Percentage								0.15%
Secured Term Loan \| 2021 Term Loan \| Eurocurrency Rate \| Minimum
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal Per Quarter		3,750,000
Secured Term Loan \| 2021 Term Loan \| Eurocurrency Rate \| Maximum
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal Per Quarter		18,750,000
Secured Term Loan \| 2021 Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
Interest rate (percent)	1.00%
Revolver \| 2021 Revolver
Debt Instrument [Line Items]
Line of credit borrowing capacity		$ 2,000,000,000
Revolver \| 2021 Revolver \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread On Variable Rate, Eurocurrency Convert	0.10%
Debt Instrument, Basis Spread On Variable Rate, LIBOR Convert	0.10%
Line of Credit \| 2018 Amended Revolver
Debt Instrument [Line Items]
Line of credit borrowing capacity														$ 1,500,000,000
Senior Notes \| 2025 Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount								$ 950,000,000
Debt extinguishment loss							(21,600,000)
Interest rate (percent)								4.375%
Interest expense							5,800,000
Extinguishment of Debt, Amount			$ 970,800,000
Debt Redemption, Premium Paid			$ 20,800,000
Debt Issuance Costs, Net							7,900,000
Debt Instrument, Unamortized Discount							6,400,000
Senior Notes \| 2028 Senior Notes
Debt Instrument [Line Items]
Debt instrument face amount								$ 400,000,000
Interest rate (percent)								4.625%
Proceeds from issuance of senior long-term debt					$ 1,000,000,000
Offering price, percent of face value								100.00%
Percentage of redemption price, third period								102.312%
Percentage of redemption price, fourth period								101.541%
Percentage of redemption price, fifth period								100.77%
Percentage redemption price, sixth period								100.00%
Percentage price of principal amount for repurchase of senior notes								101.00%
Senior Notes \| 2029 Senior Notes
Debt Instrument [Line Items]
Interest rate (percent)								3.25%
Redemption price, percentage				100.00%
Senior notes principal amount								$ 950,000,000
Senior Notes \| 2029 Senior Notes \| Period One
Debt Instrument [Line Items]
Redemption price, percentage				103.25%
Senior Notes \| 2029 Senior Notes \| Period Two
Debt Instrument [Line Items]
Redemption price, percentage				101.625%
Senior Notes \| 2029 Senior Notes \| Period Three
Debt Instrument [Line Items]
Redemption price, percentage				100.813%
Senior Notes \| 2029 Senior Notes \| Period Four
Debt Instrument [Line Items]
Redemption price, percentage				100.00%
Senior Notes \| 2029 Senior Notes \| Period Five
Debt Instrument [Line Items]
Redemption price, percentage				101.00%
Securitization Program
Debt Instrument [Line Items]
Current debt obligations, net of debt discount								$ 0	248,500,000
Debt, Weighted Average Interest Rate								0.81%
Term Loan
Debt Instrument [Line Items]
Current debt obligations, net of debt discount								$ 15,000,000.0	0
Long term debt obligations. excluding convertible notes								1,475,700,000	$ 1,382,300,000
Term Loan \| 2021 Credit Agreement
Debt Instrument [Line Items]
Debt extinguishment loss							$ 700,000
Debt Issuance Costs, Net								7,000,000
Asset Securitization
Debt Instrument [Line Items]
Repayments of Other Debt								$ 248,500,000