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

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Line Of Credit Facility, Fees Paid For Temporary Backstop Facility

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Number of Quarterly Installment Payments

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Amount of amortization expense attributable to debt issuance costs.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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

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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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Weighted average interest rate of debt outstanding.

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

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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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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 inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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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 - Additional Information (Details)					3 Months Ended	12 Months Ended
	Jan. 03, 2020 USD ($)	Oct. 23, 2019 USD ($)	Apr. 03, 2018 USD ($)	Mar. 26, 2018 USD ($) payment	Mar. 31, 2018 USD ($)	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Nov. 04, 2019 USD ($)	Sep. 29, 2018 USD ($)	Feb. 12, 2018 USD ($)
Debt Instrument [Line Items]
Weighted average interest rate						3.46%	4.24%
Bridge Facility
Debt Instrument [Line Items]
Amount of credit facility										$ 830,000,000
Capitalized debt issuance costs									$ 1,800,000
Fees paid for temporary backstop facility					$ 2,000,000.0
Letter of Credit
Debt Instrument [Line Items]
Amount outstanding under letters of credit						$ 7,500,000	$ 6,500,000
Credit facility \| $1.65 Billion Credit Facility
Debt Instrument [Line Items]
Amount of credit facility				$ 1,650,000,000
Credit facility \| $2.3 Billion Credit Facility
Debt Instrument [Line Items]
Amount of credit facility				2,300,000,000
Capitalized debt issuance costs							6,200,000
Expensed debt issuance costs				1,600,000			1,000,000.0
Credit facility \| Term Loan Facility
Debt Instrument [Line Items]
Amount of credit facility				$ 750,000,000
Number of quarterly installment payments \| payment				19
Pre-payments of long-term debt		$ 500,000,000.0
Credit facility \| $1.55 Billion Credit Facility \| Multi-currency Revolving Facility
Debt Instrument [Line Items]
Amount of credit facility								$ 1,550,000,000
Credit facility \| $2.5 Billion Credit Facility
Debt Instrument [Line Items]
Minimum EBITDA less capital expenditures to consolidated cash interest expense				3.50
Credit facility \| $2.5 Billion Credit Facility \| Federal Funds Rate
Debt Instrument [Line Items]
Interest rate				0.50%
Credit facility \| $2.5 Billion Credit Facility \| LIBOR
Debt Instrument [Line Items]
Interest rate				1.00%
Credit facility \| $2.5 Billion Credit Facility \| Multi-currency Revolving Facility
Debt Instrument [Line Items]
Amount of credit facility								2,050,000,000.00
Maximum increase to the term loan and/or revolving line of credit								1,000,000,000.0
Senior Notes \| 2028 Senior Notes
Debt Instrument [Line Items]
Capitalized debt issuance costs		6,000,000				$ 500,000
Proceeds from private offering of debt		500,000,000.0
Aggregate principal amount		$ 500,000,000						$ 500,000,000.0
Maximum consolidated indebtedness to consolidated EBITDA, with step downs								4.00
Stated interest rate						4.25%
Redemption price percentage, conditional upon equity offerings		40.00%
Redemption price percentage in the event of a change of control		101.00%
Net proceeds from debt		$ 494,000,000
Senior Notes \| 2028 Senior Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption price percentage		100.00%
Senior Notes \| 2028 Senior Notes \| Redemption Period Two
Debt Instrument [Line Items]
Redemption price percentage		104.25%
Senior Notes \| 2026 Senior Notes
Debt Instrument [Line Items]
Capitalized debt issuance costs			$ 7,400,000
Aggregate principal amount			$ 500,000,000
Stated interest rate						5.50%
Redemption price percentage, conditional upon equity offerings			40.00%
Redemption price percentage in the event of a change of control			101.00%
Net proceeds from debt			$ 493,800,000
Senior Notes \| 2026 Senior Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption price percentage			100.00%
Senior Notes \| 2026 Senior Notes \| Redemption Period Two
Debt Instrument [Line Items]
Redemption price percentage			105.50%
Minimum \| Foreign Exchange Forward
Debt Instrument [Line Items]
Foreign exchange forward contract amount						$ 300,000,000
Maximum \| Foreign Exchange Forward
Debt Instrument [Line Items]
Foreign exchange forward contract amount						400,000,000
HemaCare Corporation \| Subsequent Event
Debt Instrument [Line Items]
Purchase price	$ 380,000,000
Other income, net \| Foreign Exchange Forward
Debt Instrument [Line Items]
Foreign currency translation loss recognized						9,600,000	100,000
Amount of gain (loss)						(121,000)
Interest expense \| Foreign Exchange Forward
Debt Instrument [Line Items]
Amount of gain (loss)						$ 18,672,000	$ 1,486,000