Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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

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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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Debt - Debt With A Contractual Term Greater Than One Year (Details) $ in Thousands	Sep. 26, 2021 USD ($)	Sep. 26, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Sep. 27, 2020 USD ($)	Sep. 27, 2020 EUR (€)
Debt Instrument
Long-term debt	$ 6,482,090		$ 7,972,530		$ 8,280,960
Current portion of long-term debt, net	(1,605,798)		(2,039,597)		(2,109,284)
Long-term debt, net	4,876,292		5,932,933		6,171,676
Secured Debt
Debt Instrument
Less: unamortized discount and debt issuance costs	(9,203)		(8,437)		(9,903)
Long-term debt	2,292,932		2,310,839		2,691,193
Secured Debt \| Asset-backed Canadian commercial paper conduit facility
Debt Instrument
Long-term debt, gross	98,310		116,678		127,500
Secured Debt \| Asset-backed U.S. commercial paper conduit facilities
Debt Instrument
Long-term debt, gross	242,254		402,205		467,338
Secured Debt \| Asset-backed securitization debt
Debt Instrument
Long-term debt, gross	1,961,571		1,800,393		2,106,258
Medium-term notes
Debt Instrument
Long-term debt, gross	3,444,664		4,917,714		4,845,961
Less: unamortized discount and debt issuance costs	$ (10,649)		(15,374)		(17,289)
Medium-term notes \| Due in 2021, issued January 2016
Debt Instrument
Debt instrument, stated percentage	2.85%	2.85%
Long-term debt, gross	$ 0		600,000		600,000
Medium-term notes \| Due in 2021, issued November 2018
Debt Instrument
Debt instrument, stated percentage	0.94%	0.94%
Long-term debt, gross	$ 0		450,000		450,000
Medium-term notes \| Due in 2021, issued May 2018
Debt Instrument
Debt instrument, stated percentage	3.55%	3.55%
Long-term debt, gross	$ 0		350,000		350,000
Medium-term notes \| Due in 2022, issued February 2019
Debt Instrument
Debt instrument, stated percentage	4.05%	4.05%
Long-term debt, gross	$ 550,000		550,000		550,000
Medium-term notes \| Due in 2022, issued June 2017
Debt Instrument
Debt instrument, stated percentage	2.55%	2.55%
Long-term debt, gross	$ 400,000		400,000		400,000
Medium-term notes \| Due in 2023, issued February 2018
Debt Instrument
Debt instrument, stated percentage	3.35%	3.35%
Long-term debt, gross	$ 350,000		350,000		350,000
Medium-term notes \| Due in 2023, issued May 2020
Debt Instrument
Debt instrument, stated percentage	4.94%	4.94%
Long-term debt, gross	$ 756,763	€ 650,000,000	797,206	€ 650,000,000	760,890	€ 650,000,000
Medium-term notes \| Due in 2024, issued November 2019
Debt Instrument
Debt instrument, stated percentage	3.14%	3.14%
Long-term debt, gross	$ 698,550	€ 600,000,000	735,882	€ 600,000,000	702,360	€ 600,000,000
Medium-term notes \| Due in 2025, issued June 2020
Debt Instrument
Debt instrument, stated percentage	3.35%	3.35%
Long-term debt, gross	$ 700,000		700,000		700,000
Senior notes
Debt Instrument
Less: unamortized discount and debt issuance costs	(5,506)		(6,023)		(6,194)
Long-term debt	$ 744,494		743,977		743,806
Senior notes \| Due in 2025, issued July 2015
Debt Instrument
Debt instrument, stated percentage	3.50%	3.50%
Long-term debt, gross	$ 450,000		450,000		450,000
Senior notes \| Due in 2045, issued July 2015
Debt Instrument
Debt instrument, stated percentage	4.625%	4.625%
Long-term debt, gross	$ 300,000		300,000		300,000
Unsecured Debt
Debt Instrument
Long-term debt	$ 4,189,158		$ 5,661,691		$ 5,589,767