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- Definition

Debt Instrument, Covenant, EBITDA Less Capital Expenditures to Consolidated Cash Interest Expense Ratio, Minimum

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Number of Quarterly Installment Payments

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Number of consecutive fiscal quarters

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Payments For Accrued Interest

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- Definition

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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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Weighted average interest rate of debt outstanding.

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Nominal or face amount used to calculate payment on derivative.

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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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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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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The cash outflow for loan and debt issuance costs.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Narrative (Details)	1 Months Ended	3 Months Ended			6 Months Ended
	Apr. 30, 2021	Jun. 26, 2021 USD ($)	Mar. 27, 2021 USD ($) payment	Jun. 27, 2020 USD ($)	Jun. 26, 2021 USD ($)	Jun. 27, 2020 USD ($)	Dec. 26, 2020 USD ($)	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)
Debt Instrument [Line Items]
Weighted average interest rate		2.74%			2.74%		3.11%
Deferred financing costs expensed					$ 38,166,000	$ 0
Debt extinguishment and financing costs					$ 27,980,000	0
Number of consecutive fiscal quarters					1 year
Foreign Exchange Forward
Debt Instrument [Line Items]
Derivative amount		$ 400,000,000		$ 400,000,000	$ 400,000,000	400,000,000
Term Loans
Debt Instrument [Line Items]
Prepayments of long-term debt			$ 146,900,000
Deferred financing costs expensed			200,000
Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Prepayments of long-term debt			135,000,000
$750 Million Term Loan \| Credit Facility
Debt Instrument [Line Items]
Credit facility			$ 750,000,000
Number of quarterly installment payments \| payment			19
$2.05 Billion Credit Facility \| Credit Facility
Debt Instrument [Line Items]
Minimum EBITDA less capital expenditures to consolidated cash interest expense ratio		3.50			3.50
$2.05 Billion Credit Facility \| Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility			$ 2,050,000,000.00
5.5% Senior Notes due 2026 \| Senior Notes
Debt Instrument [Line Items]
Prepayments of long-term debt			500,000,000
Deferred financing costs expensed			5,000,000
Aggregate principal amount									$ 500,000,000
Stated interest rate		5.50%			5.50%		5.50%		5.50%
Debt extinguishment and financing costs			21,000,000
Payments for accrued interest			13,000,000
4.25% Senior Notes due 2028 \| Senior Notes
Debt Instrument [Line Items]
Maximum consolidated indebtedness to consolidated EBITDA		4.25			4.25
Aggregate principal amount								$ 500,000,000
Stated interest rate		4.25%			4.25%		4.25%	4.25%
3.75% Senior Notes due 2029 \| Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount			$ 500,000,000
Stated interest rate		3.75%	3.75%		3.75%		3.75%
4.0% Senior Notes due 2031 \| Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount			$ 500,000,000
Stated interest rate		4.00%	4.00%		4.00%		4.00%
$3 Billion Credit Facility \| Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility		$ 3,000,000,000.0			$ 3,000,000,000.0
$3 Billion Credit Facility \| Credit Facility \| Revolving Credit Facility \| Federal Funds Rate
Debt Instrument [Line Items]
Variable interest rate	0.50%
$3 Billion Credit Facility \| Credit Facility \| Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Variable interest rate	1.00%
Senior Notes Due 2029 And 2031 \| Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount			$ 1,000,000,000
Debt extinguishment and financing costs			10,000,000
Senior Notes Due 2029 And 2031 \| Senior Notes \| Cognate BioServices, Inc.
Debt Instrument [Line Items]
Debt extinguishment and financing costs			21,000,000
Payments for accrued interest			$ 13,000,000
Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding		16,700,000			16,700,000		$ 16,000,000.0
Other Nonoperating Income (Expense) \| Foreign Exchange Forward
Debt Instrument [Line Items]
Foreign currency losses recognized					18,300,000	4,200,000
Interest Expense \| Foreign Exchange Forward
Debt Instrument [Line Items]
Recognized gains from derivatives		$ 5,355,000		$ 0	$ 19,332,000	$ 6,067,000